I rode the bike another 1,000 miles or so and now it pushes some oil out the breather vent, I mean a light mist constantly while riding. By “blowing out" I assume it is a mixture of gas and oil. Volkswagen Golf IV - White smoke from exhaust. You remove the oil cap and attach a blowby orifice tube. Smoke coming out of oil fill port was all brittle thin plastic and cracked up and exposing the valve cover breather hose port to the atmosphere. the smoke you see coming out of breather tubes and orifices). Subject: Smoke coming out of oil breather cap. Basically, smoke from a diesel engine indicates that something is not right. 4 E model and plagued with problems since buying it from a trader only a couple of months ago. Checked the oil and found it was no longer oil but mostly petrol / oil mix and way too full. A leak is just that, a leak that causes a drip of oil when the vehicle is parked. They would often have as much bluish-white smoke drifting out from their draft tubes as was streaming out their tailpipes. Signs of An Engine Oil Leak are having oil appear on the engine or under the car. It seams to do it more when it warms up then it does when its cold. Supply and return oil for the turbo. There has been a lot of talk about the effectiveness of the differential and gearbox breathers used on the 80 series Toyota Land Cruiser. Does anyone have any ideas as to the cause. It's not smoke, it's oil mist. I noticed some white smoke coming out of the oil fill inlet the other day. It also filters out oil mist. When I run the car there is clearly smoke coming out of the tube that. I should have known something would happen. Four-stroke engines typically have an oil sump at the bottom of the crankcase and the majority of the engine's oil is held within the crankcase. I have NO exhaust smoke. The force with which the air is coming out of my oil cap neck is like someone forcefully blowing on to my hand. Re: Y is my rear diff breather spitting out gear oil? What's happening is the oil is getting into the tube, as mentioned, probably through off-camber, heat, or whatever means. im thinking it is my turbo cuz its making wierd noises and i know it has play in it and it dosen't spool till 3500. Not that much but still messy. One of the most common "problems" with Sportsters is the so-called "oil blowby phenomenon," which is when oil leaks out of the air cleaner assembly and drips out all over the engine and your right leg. Piston rings are worn. This is also called "running rich. It runs good but I watch the oil. make sure they are seated correctly. The smoke released by any type of fire (forest, brush, crop, structure, tires, waste or wood burning) is a mixture of particles and chemicals produced by incomplete burning of carbon-containing materials. It's a white-ish colour and puffs out fairly consistent. This can lead to oil starvation of vital components (main bearings, cam bearings & valve train are just a few examples) and cause further damage. she was coming off the freeway on a some what blind curve and there was an idiot sitting ( not moving ) on a. What can be the cause of this? Shall i route this hose to the airbox. It took about a hundred miles before it leaked more oil than before. Hey Terry did you find out why where you leaking oil out the fly wheel my 2010 pro star with a isx is doin the same thing but I put a breather in the inspection hole about 2 months before I noticed blue smoke coming out the exhaust pipe I'm goin to remove the breather I put on it I haven't done it yet but do you have any suggestions. White smoke smells fumey (like burned petrol). Then a warning light came on the dash saying 'check oil'. he's looking at one, and the oil light keeps on flicking on and off, and he also noticed there is smoke coming from the breather in the rocker cover. Blue/grey smoke may be emitted from the exhaust pipe or the crankcase breather pipe. When doing a long journey, constant 75mph, stick boot down and i get a cloud of smoke, this used to be the black smoke. The majority of my leak is indefinitely coming from ccv breather tube. Oil dripping from the breather tube is normal on a Triumph. Just the other day I noticed that the engine sounded like it was missing. I've noticed white smoke coming from the breather hose. Check if the intake manifold has oil in it. I also started pulling off the oil filler cap at operating temp to check for "breathing" and puffs of smoke along with it. Signs of An Engine Oil Leak are having oil appear on the engine or under the car. I lost one liter of fresh oil that day. If it is really smoke and not Oil Vapor may be there is something going on with an Exhaust Valve that is seating intermittantly during the Power Stroke and hot expanding combustion gas is getting past the valve and coming out of the Stem Seal and at the same time the poor compression is is causing a miss. I've noticed white smoke coming from the breather hose. Smoke coming from bottom of boiler Hi All, I just got back from vacation and I turned my old boiler back on and there is smoke pouring out of the bottom of it when its on. Put a fresh filter and new 10w30 non synthetic in it. It isn't a lot when it's idling but if I rev it up a little a denser amount comes out. Hi all I have a golf 1. If your engine was anything like mine there should be a puddle of oil here around the breather cover. My machine runs great but I will have periods where the engine spits oil out the breather tube coming off valve cover. The gerotors on the scavenge side of the oil pump had some definite scoring and wear, and the breather "filters" were pretty much caked and couldn't have been working like they should have. ignition engine I would say it had the timing to far advanced and it pre-ignited and put a hole in a piston, but I have very little experience with diesels. So I drove around a bit and checked. Excessive smoke on hard acceleration This blog started out on the trials and tribulations of car electronics but I've decided to also include my hard won experience learnt from faults on my ageing cars. Sent from To view links or images in this forum your post count must be 5 or greater. There could be two possible reasons for smoke coming from oil cap: Hot fuel bypasses worn valve stem seals and rings. Folks on this site tell me it is probably a bad rings problem creating so much blow by gas. Excess oil out the breather, or for the correct term, the Draft Tube, is the result of Piston Ring blow-by, where the piston rings can't completely seal the side of the cylinder. Recently I have changed the water pump on my series 60 engine. It also filters out oil mist. It only does it once the bike has been running for a while. What causes oil and smoke to come out of the dipstick of a 302 Try replacing PCV valve oil coming from dipstick ,means the engine is pressurizing. Soon all the breather lines are blocked with the excrement, and then the oil and condensate gloop is forced into the air filter housing A double helping of crap on cold soggy toast for dinner :- ( The cure: Disconnect the main breather pipe completely. I'm thinking that the breather tube needs to be much taller and more vertical and this will help keep the oil in the crankcase. So, each color smoke indicates a different problem, and as a car owner, it is important to understand this difference. many of miles are on rings like 8500 miles. There was smoke coming out of the bonnet of my car today. Apparently tempted by a bargain deal, Sweden’s Viking Supply Ships AB has partnered with funds managed by Borealis Maritime to purchase two under-construction platform supply vessels. I have an older model Speedaire air compressor with a Speedaire 2Z499B compressor pump. High crankcase pressures and oil leaks are a sign of head gasket failure, you may also hear a slight puffing noise as compression escapes from the cylinder. I noticed the same thing coming from the dipstick tube. There is the engine breather, and then there is the oil tank breather. Posted: Fri Apr 13, 2012 4:41 am Post subject: White smoke coming from oil breather - JD 3020 gas I Purchased a 1969 JD 3020 several months ago. This blend of oils can be used in the Gopher X Extermination Device as a carbon monoxide warning agent. The filter is on the back of the rocker cover. Smoke under the car from the crankcase breather might be bad enough for a cop to pull you over for a sever warning. It took about a hundred miles before it leaked more oil than before. If however actual smoke or a substantial volume of vapor is coming out of the filler cap when the engine is running it indicates your PCV is plugged or your rings are getting very worn (worn rings will be accompanied by oil consumption and possibly blue smoke from the tailpipe). On the late styled Model B there is no breather; the oil goes in through the plug on top of the big gear cover on the pulley side of the main case. Choo there and u will have lots of smoke when u but that junk back into your freaking combustion chamber. many of miles are on rings like 8500 miles. It never has happened with city driving, only on long open highway trips. If the rings don't seal properly the cylinder compression leaks past into the crankcase, which then flows out the breather, carrying oil with it. As long as it is not constant when the engine is running there is likely no problem. This feature is not available right now. Its in very very good condition, much has been done. I have smoke coming out of my oil filler tube and the intake (only when the air breather off). 3 carb and the other day I was changing the plugs and noticed oil from the intake and when I opened it oil can pouring out and the air filter was socked in oil. The moving piston displaces alot of air in the crankcase. ive also noticed a very small amount of liquid slight yellow in color coming from the breather as well. Now the engine runs very strong and fine, but has a lot of smoke coming from the filler tube and cranckcase breather. When it runs for like 15 minutes, the smoke gets lighter and lighter and then almost it stops coming out. Seems like there is more "smoke in the cabin" when the engine is under load. I checked the oil both times and it was fine. Smoke From The Engine. So it looks like I will be down for awhile. (oil that cools cylinders). Posted: Fri Apr 13, 2012 4:41 am Post subject: White smoke coming from oil breather - JD 3020 gas I Purchased a 1969 JD 3020 several months ago. any ideas what could be the problem? thanks guys. At idle, when checking the installation, AND WITH THE AIRBOX AND BASEPLATE REMOVED, smoke is coming from the crankcase breather hose at the rear (where the sponge filter is). By Erik Johnson on Thursday, May 21, 2009 - 10:52 pm:. Got the old one out and it's the old umbrella style. Usually that color smoke indicates a head gasket issue (I've had it happen personally). Engine does not use oil per dipstick. The only thing I can think of that would cause this would be bad rings. Plumbed into a vehicle's PCV system to capture the excess crankcase vapors, residual oil mist and moisture from reentering the intake tract Vehicles from the factory vent these excess crankcase vapors, residual oil mist and moisture right back into the intake manifold which could cause detonation, oil deposits to form in the intake tract including the valves themselves and from lowering the. The engine runs now and sound very strong but my problem is that alot of white smoke come out from the valve cover breather on the left side at the right side also from the valve cover plug i also do have a pcv valve and its installed but not the line yet, because i need to drill a hole in my intake manifold first, i run a 15w 40 oil, the guy. Breather Outlet - A small amount of oil at the breather outlet is normal but if it is excessive you may see a puddle under the breather after shut down and you might also have excessive oil on the belly of the. Engine vibration like only 3 injector working. An Engine Oil Leak is caused by a seal or gasket failing on the engine. One of the most common "problems" with Sportsters is the so-called "oil blowby phenomenon," which is when oil leaks out of the air cleaner assembly and drips out all over the engine and your right leg. Check the breather for proper operation. First Harley and first issue really. This can be accompanied by bluish smoke, reduced fuel economy and oil-fouled spark plugs. Oil sludge really can't harm a head gasket directly, as it just sits there like meat in a sandwich. I now have 3rd cause to share that is similar (but the cause is different) to wet sumping. They would often have as much bluish-white smoke drifting out from their draft tubes as was streaming out their tailpipes. When I open the hood, I see the white smoke coming from the area which I highlighted with red in the first picture. Now the engine runs very strong and fine, but has a lot of smoke coming from the filler tube and cranckcase breather. Re: What are the signs of a bad head gasket/cracked block? no, that could just be oil that is getting thrown around from the valves and then blown out. Oil may leak down the valve guides particularly after the engine has been shut off and started from cold,if so blue oil smoke may be emitted from the tail pipe on start up, (this may also be noticeable if the car is left idle for a few minutes and then accelerated away for example after sitting at a traffic light). Oil is darker. Generally billowing clouds of white smoke are from one of two things. I haven't pulled the sump yet. If you see smoke coming from a tunnel system then you can stay away from the smoke to help avoid contact with high concentrations of carbon monoxide. When checking the engine over after doing a tranny flush, spark plugs, and oil, I noticed a whirring or humming coming from the engine bay. The front diff breather enters the axle housing about 25mm above the axle centreline. In addition, piston engines operated in very cold conditions aloft sometimes have the oil breather line iced. Pretty much starts when you crank it and does it at idle. I have been noticing lately that I have been getting some white-ish smoke/steam from my oil breather. More than likely, it is one issue and all of the others need done just in case. However, when I two it the hydraulic fluid is coming out of the breather hole as the fluid sloshes around in the tank. JULY 25, 2017 – Fincantieri has signed a strategic cooperation agreement with Mapei S. It is OK to have smoke coming out of your dipstick. When I put a new air filter in, after driving the car the air filter gets. It runs fine, and my oil pressure runs at the L at 3/4 throttle. This pressure goes up into the head through the oil return galley and exits through the breather tube, taking some oil with it. Some days it doesn't do it. trouble shooting white smoke coming from the crankcase vent and oil cap. Most of the time any such leak would run the opposite direction. any ideas what could be the problem? thanks guys. The other day, a burning smell started coming out of the vents and next thing you know, smoke is coming out as well. A bad head gasket will continue to produce steam in the combustion chambers all the day long in most cases. The engine was serviced recently (a month ago) and upper breather valve was replaced with generic one: original valve was failed (stuck partly open), I could not get whole. What you describe is what happens to me and has ever since I did the breather mod. The other day I switched from Craftsman 30wt oil to Pennzoil YB 10W-40. com FREE DELIVERY possible on eligible purchases. I have modified the stock PCV head breather to go to a T fitting with a K&N breather filter at the top of the T and a run of hose capped at the other end of the T. A smoke machine can without having to tear down the engine. Re: Y is my rear diff breather spitting out gear oil? What's happening is the oil is getting into the tube, as mentioned, probably through off-camber, heat, or whatever means. Shovelhead Breather Timing with Space-N-Time Tool The oil misting out the crankcase is just plain killing me at this point. I have been noticing some smoke or steam coming out of my valve cover breather filters. Blue smoke usually means oil. But more than being a transient annoyance, inhaling the fumes created by the combustion of petroleum products can have both short- and longer-term health hazards. 0l oil coming out the valve cover breather Thanks don, I have performed a compression test and each cylinder was 125psi almost on the nose. If you are getting a lot of oil in the bottle then the oil consumption problem is caused by engine blow by. check for rotational drag on the turbo compressor wheel, it may be locking up causing low power and black smoke, much like cummins vgt turbo 4. So I take my scout into the dealer for what I thought was a cylinder head gasket leak. If the air is free any oil soaking and is clean, then you may have to end up doing a cylinder leak down test. And smoke is coming a lot when temperature riches 190F and thermostats open. Should the oil breather be depositing oil after the engine stops running? This is the only way I can imagine it is got there. A big smoke bomb once in a while is completely normal, due to the architecture of the flat-6 engine, which may let a drop of oil flow into one of the combustion chambers sporadically. Is this normal or am I in need of a rebuild soon. We can generally understand what is wrong with a diesel engine by the color of smoke emitted from the exhaust. Recently fitted an Evo style 110" engine (Sputhe) with a bottom breather, it's done about 50 miles and whilst out for a run I noticed smoke coming up from the front of the bike. Tons of white smoke and runs starts to studder like its going to stall. Smoke coming from engine, Coolent leaking, oil as well I've had the car tuned and the engine fully repaired, but i had it tuned before i put on the dual carb. The 'drip' is coming from the crankcase breather. They would often have as much bluish-white smoke drifting out from their draft tubes as was streaming out their tailpipes. White smoke usually means water. 25l petrol sIIa (being a non-North American model) has the crankcase oil vent open and vents directly into the engine bay. The bike is running well with no junk coming out the exhaust followed the tube from the bottom and it's a oil breather tube off the back of the engine. And the smoke doesn't smell like the usual burning oil smell, for those of you who've had old vehicles that burn oil. My truck is suffering from smoke in the cabin. Is the issue still happening? Usually it is one issue. No matter how the engine breather is plumbed, one connects it to the oil tank in the same way. Becouse there is no leaks no smoke on exaust , i am totaly confused what can be the issue is some cleaning,replacing or something similar can help on this issue: May 30, 2017 : Followup from the Pelican Staff: The breather can cause oil consumption, so can work engine parts. never seen blue smoke coming out of a breather from a rocker before unless somethings was seriously fooked. It is currently jetted to 45/170 and otherwise runs great. It's normal. The only smoke that can be seen is as revs drop after being revved up shown as a small puff of blue smoke from the back, but you would hardly even notice it even if stood behind the car looking for it. They called me yesterday afternoon and said the issue is oil coming out of the breather tube installed on my Trask intake. No matter how the engine breather is plumbed, one connects it to the oil tank in the same way. I felt the motor cover and its perfectly cold, not even close to being warm. If the rings don't seal properly the cylinder compression leaks past into the crankcase, which then flows out the breather, carrying oil with it. Oil fires and smoke, after Iraqi forces set fire to oil wells during the First Gulf War Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass. I have noticed that the car has been smoking from the oil breather, and the smoke is also noticeable when you remove the dipstick. A blocked crankcase breather will cause oil in the cylinder and white smoke, clearing the breather pipe is a simple fix. Hello everyone, First post. I plan on taking it back to the wreckers as its still under their warranty but just want to try and diagnose it for myself first. Got the old one out and it's the old umbrella style. The motor runs great, good temperature and oil pressure. I’ve not priced a PCV job (nor have I done one- yet!), but knowing that repair shops (1) make a hefty profit on parts,. There can be a degree of smoke coming from the crankcase breather, which is vented to the air filter housing. So it looks like I will be down for awhile. Took it to a local Kubota dealer and they found nothing wrong. One of the problems of making more horsepower with this motor is getting the crankcase to breath, the base is vented on the clutch side and across the hollow balencer shaft into a cavity and up to the breather, there is a only a lip seal on end bearing. Prior to the ride, the owner mentioned that he was having a problem with a lot of smoke coming out of the breather and also coming into the passenger compartment. Have you any idea what this could be. Check and see if there is oil coming out at the bottom where the valve shaft goes into the crackcase. There is plenty of oil and water in the machine, and it is serviced regularly. Apparently tempted by a bargain deal, Sweden’s Viking Supply Ships AB has partnered with funds managed by Borealis Maritime to purchase two under-construction platform supply vessels. Seems like there is more "smoke in the cabin" when the engine is under load. Make sure that you are not overfilling the crankcase with oil. Recently fitted an Evo style 110" engine (Sputhe) with a bottom breather, it's done about 50 miles and whilst out for a run I noticed smoke coming up from the front of the bike. If oil leaks into the breather or the crankcase breather fails, it can cause a clog that turns into black smoke. The only smoke that can be seen is as revs drop after being revved up shown as a small puff of blue smoke from the back, but you would hardly even notice it even if stood behind the car looking for it. If the rings don't seal properly the cylinder compression leaks past into the crankcase, which then flows out the breather, carrying oil with it. Smoke coming out of where the oil dipstick is? Pcv valve is bad or crankcase breather valve or valves are in Lite cloud of white smoke coming from oil. They would often have as much bluish-white smoke drifting out from their draft tubes as was streaming out their tailpipes. As with the coolant causing white smoke, any amount of oil in the cylinder will cause blue smoke from the exhaust. When I fired it up a lot of oil started coming out of the cover for the breather. I am often asked to diagnose vehicle problems over the phone, if only it was that easy. The dealer then relined the oil pump again and checked the seals. The tractor only has 840 hours on it but it appears that it got hot or overheated at one time because the plastic side cover on the left side of motor has sunken in like it started to melt about 2 inches. So, I'm thinking that something (possibly my fault) that got moisture in the engine. I get white smoke coming out of it, and it smells terrible. I've read that this can mean worn rings but wanted know if there are any other possible causes? The bike starts reasonably easily and runs fine with plenty of power. When doing a long journey, constant 75mph, stick boot down and i get a cloud of smoke, this used to be the black smoke. Its an open breather system so there is no real way to totally stop the venting/oiling without changing the design. I think, if it were the head gasket you'd be seeing oil in the coolant or vice versa. The motor runs great, good temperature and oil pressure. Some time shortly after is when the smoke started coming from the breather. White smoke out breather hose Smoke is one thing, and water vapor is another. I think it's oil vapor. when i start my bike a slight white smoke pours out of my crankcase breather at high rpm (around 5-6000). Get the job done with the right part, at the right price. I used to have the hose that ran from the breather tube to the air filter, but my K&N air filter was getting all oiled up and I purchased a small oil breather from jbugs. Use a wire to poke the breather hole clean of any oil or dirt buildup. After doing the top end on my Bonnie with new rings and valve guides, she still smoked. The Answer is in the Smoke. I had a hard time finding the small oil draining hole. Case pressures rise with rpm, so naturally after driving and stopping the pressure will be releasing and appear to have a lot of smoke. While it runs fine, no issues, I do have smoke coming out the crank breather and some oil. I would, adjust the valves, repair anything that will keep it from running, change the oil and filter, put it back together and work it for several hours making sure the temp comes up to normal and the oil pressure is acceptable and it does not blow clouds of blue smoke or raw oil out the breather or exhaust. as you probably no blue smoke = burning oil, which is never a good thing. So if your compression is really high and you are not ready to replace your rings you can try replacing the breather hose. Hopefully if I get a new one it'll be a tighter fit. If however actual smoke or a substantial volume of vapor is coming out of the filler cap when the engine is running it indicates your PCV is plugged or your rings are getting very worn (worn rings will be accompanied by oil consumption and possibly blue smoke from the tailpipe). Maybe retrofit a K&N push on style to the oil fill tube like the roundy round boys do. Oil will drip down onto the exhaust pipes which causes a lot of smoke. These rankings are the culmination of our efforts. popped off and was blow oil as I drove it to my house about 500 ft. It runs pretty smooth though I have white smoke coming out of the valve cover breather. Maybe the rubber shrank over time? The new PCV valve has a super snug fit, but the breather can wobble around a little. Smoke coming from valve cover breather and dipstick tube. Apparently tempted by a bargain deal, Sweden’s Viking Supply Ships AB has partnered with funds managed by Borealis Maritime to purchase two under-construction platform supply vessels. It is the breather from the oil tank that Norton plumbed into the airbox, and many simply dump on the chain as I did long ago when I had no airbox. Wipe the cavity out and poke a small wire down the hole in the bottom, and check the cover for a small hole, and clean it out. hi im new to the forum an jst picked up my first 300ex, its an 03 and needs some work, but i bought it cheap. Sometimes it will smoke, sometimes not, it just depends how much oil is in the bottom of the motor. I have done a compression check and found that cylinders 2-8 are between 115 and 121 psi. Had a little bit of random smoke coming from it, panicked at first like you do owning an S4 but have managed to put it down to clogged pcv/breather pipes, same happened with the spider hose on my B5 S4. MKL's '98 1200C. It puts out so much smoke from the breather tube that the previous owner was changing spark plugs quite often due to the oily breather gasses going into the intake system fouling the plugs. With the pipe connected and given quite a lot of revs there is slight drop of oil being leaked. You will probably notice there what I suspect as oil being collected in that engine area and when the engine heats up, the oil is burnt. Run the engine at idle with a no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range. Smoke under the car from the crankcase breather might be bad enough for a cop to pull you over for a sever warning. It is the breather from the oil tank that Norton plumbed into the airbox, and many simply dump on the chain as I did long ago when I had no airbox. I think it's oil vapor. Oil consumption from this condition can be almost unlimited, commonly one quart in less then 100 miles, sometimes as little as 20 miles. The model of the engine is 143. I now have 3rd cause to share that is similar (but the cause is different) to wet sumping. Remove the main breather pipe from off the top of engine,. If it's smoking or oil coming out of the breather, or oil fill cap, it's caused by excessive crank case pressure, and most of the time it's caused by the compression rings going bad and thus not holding the compression in the chamber and it getting to the crank case. I took the boat for a run before and it runs mint. What causes oil and smoke to come out of the dipstick of a 302 Try replacing PCV valve oil coming from dipstick ,means the engine is pressurizing. ‘Mission creep’: US to block Russian, Syrian forces from vast oil fields. It never has happened with city driving, only on long open highway trips. More than likely, it is one issue and all of the others need done just in case. So my though was the piston rings so we did a compression test with these results; #1 110 #2 120 #3 125 #4 100 #5 128. If the smoke comes out the tail pipe, it is the exhaust valve. I have noticed that the car has been smoking from the oil breather, and the smoke is also noticeable when you remove the dipstick. Yes, it still does it after the oil change, but changing the PCV valve seems to have reduced it somewhat, though it didn't eliminate it. there does not appear to be any oil on the spark plug. There is an oil leak coming from the drain tube connected to the breather housing on top of the valve cover. A leaking fuel pump can dump fuel into the crankcase. The breather's job is to keep a partial vacuum inside the case to keep oil from leaking out. The oil level is fine,water level. i checked my oil and i havent noticed any more than less than half a quart gone or burnt in a the past month. I'm going to make a trip to AutoZone and pick up the stuff to A. If you are getting a lot of oil in the bottle then the oil consumption problem is caused by engine blow by. Recently I have changed the water pump on my series 60 engine. Is the smoke coming from the exhaust or the breather tube. When I removed it there was a lot of white condensation in the fill tube. Blue smoke usually means oil. Re: Losing oil through crankcase breather. however ive only really ever seen it on petrol motors. I have a 86' k10 blazer with a 350 small block and my problem is smoke coming out of the crankcase vent/ PCV vale breather. The oil level is fine,water level. A bad head gasket will continue to produce steam in the combustion chambers all the day long in most cases. White smoke smells fumey (like burned petrol). Not that much but still messy. There could be two possible reasons for smoke coming from oil cap: Hot fuel bypasses worn valve stem seals and rings. The majority of my leak is indefinitely coming from ccv breather tube. Diesel engine massive oil leak from breather tube. Tuesday night we changed his head out to a rebuilt 67 head that I had. When the compressor is running, air is repetitively sucked into the crank case and blown out via the breather tube. this is usually caused by a broken or stuck. Start the engine and let the car to idle for some time. MKL's '98 1200C. Today I was driving my car and was sitting on a small incline and while my car was idling I saw white smoke coming out of my exhaust. A that, it says, will help it optimize installation times, reduce the weight of certain materials, improve acoustic insulation. There can be a degree of smoke coming from the crankcase breather, which is vented to the air filter housing. Help Needed - Smoke Coming From Exhaust DISCLAIMER: bimmerownersclub. I was thinking it had to do with the smoke coming out of the breather tube because I read in other forums that the smoke was due to excess pressure in the crankcase. I now have 3rd cause to share that is similar (but the cause is different) to wet sumping. I've been turning on my A/C for a few months now with no probs. When I finish rides usually the bike will smoke because oil is dripping onto the exhaust pipes. While changing my lift pump out this past Monday I noticed that I have more than a ideal amount of oil dripping out of my blow by tube. The 'drip' is coming from the crankcase breather. why this happens??. Try producing smoke from your mouth without a cigarette. If, the crankcase is not overfilled as 30yearTech mentions then take the breather cover off (I've never run one without it) and run the motor. In a good day of welding i can lose up to a quart. 9L Dak, and I am having smoke coming out thru my oil breather cap on my drivers side valve cover. Oil is darker. The light drifts of smoke from the filler tube, the gas in the oil (I'm thinking it was just my fuel pump gone bad), the light greyish smoke coming from the tailpipe. Thank you for the update but the smoke coming from the muffler is a white blue smoke or a black smoke. now i said the oil pressure will need testing to know for sure, and smoke out breather = bad. The spark plug was in question so I took one out of my other 06 crf 250 that wasn't leaking oil out of the head and problem seamed to have slowed ran engine very little. That smoke is crankcase fumes, which are coming up from the oil pan, through the drail holes in your heads, and out your breather. It took about a hundred miles before it leaked more oil than before. Or remove its valve cover while the engine is running. This can cause severe damage to the engine if left unchecked, but you may first notice bluish smoke coming from your tailpipe as some of the excess is burned. Maybe the rubber shrank over time? The new PCV valve has a super snug fit, but the breather can wobble around a little. On the Sportster it usually blows a big puddle of oil out of the breather tube attached to the bottom of the cam cover. If its stuck open it ll take the oil with it into the exhaust chamber and causes oil burn. I have a lot of smoke coming out of my oil dipstick, my oil cap, and when I remove the pcv valve while the car is running, a lot of smoke comes out. I have a Tecumseh engine on a Craftsman mower. Engine has 520 k, no EGR. If it was just smoke from oil filler cap, then the loss of compression neednt be from worn out rings, but as smoke is coming from dipstick (sump), it is cause of concern, and you might be set back by ~50-75,000 at Ford A. If your engine requires ULSD, it will have been built on or after 1/1/07 and will not have one. This may happen in a number of ways: via worn or broken rings, pistons, rotor seals, worn valve guides or faulty valve stem seals. Posted: Fri Apr 13, 2012 4:41 am Post subject: White smoke coming from oil breather - JD 3020 gas I Purchased a 1969 JD 3020 several months ago. Not that much but still messy. Last month I drained the oil and put on a set of decked 360 heads on it. for an overhaul, so I guess I have a total of 4 qt. it takes oil to produce smoke. 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