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. This is due to engineering. 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. Locate the oil dipstick in the engine bay and remove it, wipe it clean with a cloth, and then reinsert it and remove it again. 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. Cat Man. Happened to me today on my first tow with the engine at near-max output for a couple of minutes. Oil blowing out of the dipstick tube. Rule out the simple stuff first. I see that the guys here was talking about the 426 engine. New working PCV valve. Stick the other end of the clear hose … A submerged dipstick tube goes all the way down into the oil sump and sit submerged in oil at all times. The only solution to this problem is a complete rebuild with an over-bore, new pistons and new rings. I can do nothing to cause oil to blow out the tube sitting still. I was thinking I had left the dipstick undone and that the fluid spurted out (like the oil would), but now I understand it shouldn't spurt out even if the dipstick is ajar. blowing oil out dipstick. All motors have a cretain amount of piston blow by. Your engine should not be blowing oil out of the dipstick tube. They have installed 2 more air compressors within the last 30 days. Now I am getting oil out the dipstick tube and all over the engine compartment. This is why the steigers have a … Thread starter apw; Start date Sep 23, 2015; A. apw Forum Newbie. The PCV valve could be bad. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. But from what I can tell I I am now blowing alot of oil and smoky air out of the dipstick. The older an engine gets, the more blow by. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, "Hayne diesel Tech Book Engine Repair Manual: General Motors and Ford"; Ken Freund"; 2007. When heated, aluminum expands faster than steel. We use cookies to give you the best possible experience on our website. The oil will seal the rings a tad better which will raise the compression slightly. cpurvis Lawn Addict. The engine has 142 hours on it and the first oil change was at 25 hours, the next at 50 and then 100. I have a 1994 Jeep Wrangler S 2.5ltr. Squirt two shots of automatic transmission fluid into each cylinder and run the compression test again. Oil temps reached 230, trans 193. Can you hear the ball bearing inside? I checked the dipstick and volume in the oil pan was way up so pulled the head and saw gasket perferated between 2 and 3 cylinder, and cylinders full of antifreeze. Diesels generally experience much higher combustion chamber pressures than gas engines, which makes them more prone to blow-by. we have oil blowing out of the filler tube and the dipstick tube. Duramax First Generation: 2001-2004 (LB7), Duramax Second Generation: 2004.5-2005 (LLY), VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. If it is plugged the crankcase pressure will build up and find the easiest way out which is the dipstick. Owner - Twisted Steel Performance Coating. 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. of turbo inlet. I bought it and it has been nothing but problems. When metal heats up, it expands. Than I noticed the transmission dipstick was sticking out just enough for the rubber stopper to clear and allow 1/4 gap. Marine engines usually have a dipstic tube that drops all the way to the bottom of the oil pan to allow for easier oil removal thru said dipstick. Too far away and it can't create the vacuum to properly work the CDR. 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. 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. Then just hope you don't start blowing out other seals! it is blowing oil up the dipstick which is causing it to mix with the fuel pump. I had it set pretty high on my banks today level 6 and was on it not to hard for the 15 minutes to lunch and then on the way home I was on it pretty hard. 1985 GMC K1500 long bed, 6.5 TD W/ NV4500, NP208. Blowing oil out of the dipstick tube seal - page 1 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source. Bout 150k on inframe. You might try disconnecting the turbo oil drain line and putting a length of hose onto the center bearing drain fitting. Engineers have to compensate for the differences in temperature expansion. This last case it blew the stick completly out and I just chanced upon it on a successive lap. You could have also caused it by using oil thicker than recommended in your manual, reducing lubrication on startup and in general. No milkshake, no fuel in oil as far as I can tell. Oil creeping up the dipstick is a good example of one such mystery fault, and it definitely indicates that something's gone awry inside your motor. All diesel engines have some degree of blow by. 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. Discussion Starter • #1 • Jun 18, 2010. Pulling them real hard builds up crankcase pressue and blows out the engine oil filler cap. But from what I can tell I I am now blowing alot of oil and smoky air out of the dipstick. Cat C13 in a 2009 freightliner M2 About a month ago, there. 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. Now look at the level the oil reaches. I tend to think it happened fairly quickly and don't think any overheating to much extent occured. engine breather is working, due to visible gases in the breather chamber. Metals expand at different rates. Distance is about 8-9" but dosnt seem to be an issue right now. Look at you valve covers. Vocational, Technical or Trade Scho. Now I assume this somehow to do with the fact that I just did the PCV reroute on my truck, I dont think I did anythign wrong with the install. I was pushing fairly hard to help break-in at 600 miles on the new engine. Values (intake and/or exhaust) not seating good in the cylinder head. I open the hood and I have oil sprayed all over the left side of the engine. Joined Sep 23, 2015 Threads 1 Messages 1. If your diesel's gone from oil burner to oil spurter, then you'll need to find the cause before something worse happens. 25000 km on re ringed engine, truck runs great, no misses or sputters, no blue smoke out the tail pipe, don't smell like it's burning oil. So if the oil dip stick is not secure the pressure of the oil in the engine (when the engine is running of course), will force the oil out of any low pressure area, in this case the dip stick tube. That is evidence of too much crankcase pressure. If yes, put it back in, its likely fine. Do you have a breather? If the rings can’t push out (from the pressure of the combustion), the combustion gasses will “blow-by” the rings into the oil pan and out the oil filler or dip stick. 10,235 satisfied customers. Sep 23, 2015 #1 i have an 18.5hp . Gotta bad case of oil blowin out the dipstick. I have about had it with this truck. Then get a glass of water. could it be a stuck or broken valve? 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. I'm hoping to replace the whole machine in the spring, but it looks like for now it's gonna be another busy winter with it doing snow removal. How close to the turbo inlet is the CDR hose? Nowadays, a light comes on when the oil pressure is low. Everyone was looking at the air compressor including Mack. Any idea what … read more. Right in that area, everything had been sprayed with trans fluid. 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. Oil dipstick tubes come in two types, submerged and open. Could the turbo be my problem as well. If you have excessive air forcefully coming out you dip stick, it's "blow by." If they designed the piston for a snug fit when the engine is cold, the piston … An easy way to cause oil blow-by issues is to accidentally overfill your engine with oil. Pressurizing your crankcase to the point of popping the dipstick out can only come from one place. Typically, this is caused by a bad head gasket (cylinder head pressure leaking into the crankcase). The pressure can't be relieved through it's normal avenues, so it pushes itself out of the dipstick tube. Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. Here is some of the possible issues, 1. Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. Some non-submerged tubes poke out of the block casting and hover just above the expected oil level. 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. Cylinder compression check and leakdown test by GM dealer mechanic who stated the results were good and not an indication of blowby. Well as far as I can tell I got it all solved as of now! But more seriously, it is a worn engine or stuck rings from not changing your oil on time or not using a thermostat. It only blows out the dipstick tube when the Jeep is actually moving down the road. As the engine warms up and the higher the rpm the more oil is blown out. A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. It does not have a pcv valve for me to - Jeep 1994 Wrangler question With the engine warmed up and running, take out the dipstick and slip the hose over the dipstick tube. It's always burnt and blowout 1 gallon of oil after oil change, then it was fine. An open dipstick tube pokes a little way down into your block, but likely not past the bottom of the block casting and certainly not into the oil itself. 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 . Engine is big cam3, 350hp cpl840. I revved the engine several times and could not get a drop to come out. Remove the oil cap and hold the open end of the hose over it. 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. They do this by designing the aluminum piston slightly under size from the steel cylinder. By the way, I didn't exceed 25 mph to the store and back and drove at normal engine speeds. And I know I got the intake plumbed properly as it's on the filter side. 2. For a better experience, please enable JavaScript in your browser before proceeding. Remove the PCV and shake it. Your idea of a bad turbine seal sounds possible from the way you described all that excess crankcase pressure. Re: oil coming out of dipstick at high rpms?? I'll do the crank case test after work. Do you recall the old days when every car had a oil pressure gauge on the dash board? This is fairly common in 4wd tractors. In all but the last case I find the dipstick still in the tube but it is not seated and is blowing oil out. we removed the breather on the valve cover and it is doing the same thing. I've never had this problem, but that seems like to me a way to find out. At rpm above 3500 (on road coarse) engine oil starts to blow out of dipstick tube. Egts haven't gone above 900°. I'd heard some motors just do that. Worn rings on one or more cylinders. If … Get a few feet (3 or more, give yourself plenty of room) of CLEAR rubber hose that will fit over the dipstick tube. I've checked blowby screen and tube, tube not collapsed. Thanks for the invite guys! JavaScript is disabled. I like to put it within 4"(10ish cm?) Now all engines have some degree of blow by. If the oil reaches … Usually it is because there is too much crankcase pressure. Apparently the 1.5l diesel engines had a crankcase breather improvement kit that involved installing a special cover here with an extra fitting, which a special hose got connected to that ran up and joined with the one coming off the cam cover. SOURCE: Oil blowing out the dipstick tube a fairly common problem on any of those high mile or abused 4.0liter engine either #1 your PCV ventilation tubes are plugged those are thos small black lines comming out of your valve cover or #2 your getting really bad blow by in … Like people, engines do all sorts of strange an inexplicable things when something goes wrong. All of a sudden, the engine started blowing oil out of the dipstick tube. 478 Posts . 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. Any idea what it could be? Almost all engines, diesel or otherwise, use some sort of positive crankcase ventilation system to reduce pressure inside the crankcase. What else can I do to be sure of the problem. Rowe studied engineering, philosophy and American literature at Central Florida Community College. This time I had oil everywhere including my back. I bet if you take and crack open the oil fill cap it would make a mess blowing oil all over too. I have a truck engine 3406e 5ek. If crankcase pressure builds up and the dipstick tube is submerged in oil, then oil will push its way up the tube and out of your motor. It's got the Kubota diesel engine in it and it's never had any blow-by and always ran great. Changed the cdr and washed of the entire underside and the engine and it appeared to be dry and drip free after a 15km drive, whereas it would be wet and dripping good far before that before. This is freaking me out! Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Make sure that this tube is free from any obstructions. This is especially true when the motor has a few miles on it and the pistons rings can no longer adequately seal the combustion chamber. Cat Engine Expert. Engine in it and the dipstick area, everything had been sprayed with trans fluid better will! Combustion chamber pressures than gas engines, which makes them more prone to blow-by, use some sort positive... Will raise the compression slightly work the CDR Forum Community dedicated to Chevrolet and GMC diesel owners... If the oil will seal the rings a tad better which will raise the slightly. Since 2007, specializing in automotive topics to me a way to find out builds, modifications classifieds... Been writing professionally since 2007, specializing in automotive topics 50 and then.. 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