Get a few feet (3 or more, give yourself plenty of room) of CLEAR rubber hose that will fit over the dipstick tube. But from what I can tell I I am now blowing alot of oil and smoky air out of the dipstick. Happened to me today on my first tow with the engine at near-max output for a couple of minutes. You could have also caused it by using oil thicker than recommended in your manual, reducing lubrication on startup and in general. Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. Rule out the simple stuff first. Diesels generally experience much higher combustion chamber pressures than gas engines, which makes them more prone to blow-by. Do you have a breather? Stick the other end of the clear hose … Then get a glass of water. Well as far as I can tell I got it all solved as of now! It does not have a pcv valve for me to - Jeep 1994 Wrangler question I'll do the crank case test after work. I have a C-15 and the dipstick keeps blowing out and blows oil all over, 2007 Kenworth, I changed the crankcase filter - Answered by a verified Technician . When heated, aluminum expands faster than steel. 10,235 satisfied customers. Do you recall the old days when every car had a oil pressure gauge on the dash board? The PCV system uses vacuum from the engine -- or turbo, as the case may be -- to pull pressure out of the case and back into the motor. Almost all engines, diesel or otherwise, use some sort of positive crankcase ventilation system to reduce pressure inside the crankcase. The PCV system utilizes a PCV valve to catch oil and keep it from going into the engine; if the PCV valve malfunctions or the filter clogs, then excess pressure will build up in your crankcase and push oil out of a submerged dipstick tube. The oil will seal the rings a tad better which will raise the compression slightly. You might try disconnecting the turbo oil drain line and putting a length of hose onto the center bearing drain fitting. This last case it blew the stick completly out and I just chanced upon it on a successive lap. If the oil reaches … An easy way to cause oil blow-by issues is to accidentally overfill your engine with oil. There will be two small notches on the stick: a lower one for the engine’s “low limit” and a higher one for its maximum capacity. It's always burnt and blowout 1 gallon of oil after oil change, then it was fine. 478 Posts . The engine has 142 hours on it and the first oil change was at 25 hours, the next at 50 and then 100. Worn rings on one or more cylinders. Re: oil coming out of dipstick at high rpms?? I like to put it within 4"(10ish cm?) Then just hope you don't start blowing out other seals! Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! And I know I got the intake plumbed properly as it's on the filter side. Distance is about 8-9" but dosnt seem to be an issue right now. If yes, put it back in, its likely fine. Now I am getting oil out the dipstick tube and all over the engine compartment. What else can I do to be sure of the problem. I bought it and it has been nothing but problems. Cat C13 in a 2009 freightliner M2 About a month ago, there. 1985 GMC K1500 long bed, 6.5 TD W/ NV4500, NP208. Owner - Twisted Steel Performance Coating. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. This is due to engineering. But more seriously, it is a worn engine or stuck rings from not changing your oil on time or not using a thermostat. This is freaking me out! A submerged dipstick tube goes all the way down into the oil sump and sit submerged in oil at all times. The older an engine gets, the more blow by. I can do nothing to cause oil to blow out the tube sitting still. Like people, engines do all sorts of strange an inexplicable things when something goes wrong. Your idea of a bad turbine seal sounds possible from the way you described all that excess crankcase pressure. All engines experience a certain amount of blow-by, or pressure build-up in the crankcase as a result of combustion gases leaking past the piston rings. Now look at the level the oil reaches. Look at you valve covers. Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. Engineers have to compensate for the differences in temperature expansion. Any idea what it could be? Recently however, I've noticed if you take out the dipstick while it's running, it will start to spit oil out of the dipstick tube. of turbo inlet. That is an awful lot of air moving and it is going to take the path of least resistance to balance the pressure caused by that 60 cubic inch change in volume. Remove the oil cap and hold the open end of the hose over it. As the engine warms up and the higher the rpm the more oil is blown out. The PCV valve could be bad. 2. However, overfilling the oil sump can submerge an otherwise non-submerged tube, sealing it and forcing oil to crawl upward in order to relieve pressure. As for blowing oil out the dipstick consider the fact that on a single cylinder 30 Cid engine the volume of air in the crankcase changes 60 cubic inches every revolution due just to the movement of the piston. This is why the steigers have a … Can you hear the ball bearing inside? Remove the PCV and shake it. Thanks for the invite guys! I've never had this problem, but that seems like to me a way to find out. The only other thing I can suggest as 'for the time being' fix is to get a little bit of heat shrink (for wiring), place it over the rubber, heat it & refit your dipstick to stop it popping out. Pulling them real hard builds up crankcase pressue and blows out the engine oil filler cap. Your engine should not be blowing oil out of the dipstick tube. blowing oil out dipstick. Oil blowing out of the dipstick tube. For a better experience, please enable JavaScript in your browser before proceeding. Cat Engine Expert. cpurvis Lawn Addict. Thread starter apw; Start date Sep 23, 2015; A. apw Forum Newbie. I see that the guys here was talking about the 426 engine. Cat Man. Gotta bad case of oil blowin out the dipstick. Have somebody brake torque the engine to get some boost going and see if it's got a lot of air or exhaust flow out the hose. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. 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