If the oil reaches … 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. Sep 23, 2015 #1 i have an 18.5hp . That is evidence of too much crankcase pressure. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. What else can I do to be sure of the problem. 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. Thread starter apw; Start date Sep 23, 2015; A. apw Forum Newbie. Pressurizing your crankcase to the point of popping the dipstick out can only come from one place. I have a 1994 Jeep Wrangler S 2.5ltr. I bought it and it has been nothing but problems. If they designed the piston for a snug fit when the engine is cold, the piston … Everyone was looking at the air compressor including Mack. By the way, I didn't exceed 25 mph to the store and back and drove at normal engine speeds. Too far away and it can't create the vacuum to properly work the CDR. I have about had it with this truck. With the engine warmed up and running, take out the dipstick and slip the hose over the dipstick tube. If you have excessive air forcefully coming out you dip stick, it's "blow by." Here is some of the possible issues, 1. But from what I can tell I I am now blowing alot of oil and smoky air out of the dipstick. Look at you valve covers. Cat Engine Expert. Remove the PCV and shake it. 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. For a better experience, please enable JavaScript in your browser before proceeding. Do you have a breather? Vocational, Technical or Trade Scho. JavaScript is disabled. It's got the Kubota diesel engine in it and it's never had any blow-by and always ran great. Well as far as I can tell I got it all solved as of now! 1985 GMC K1500 long bed, 6.5 TD W/ NV4500, NP208. I like to put it within 4"(10ish cm?) Gotta bad case of oil blowin out the dipstick. Now look at the level the oil reaches. 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. You could have also caused it by using oil thicker than recommended in your manual, reducing lubrication on startup and in general. 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. 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. blowing oil out dipstick. Engineers have to compensate for the differences in temperature expansion. The older an engine gets, the more blow by. Usually it is because there is too much crankcase pressure. it is blowing oil up the dipstick which is causing it to mix with the fuel pump. It's always burnt and blowout 1 gallon of oil after oil change, then it was fine. cpurvis Lawn Addict. This is fairly common in 4wd tractors. Any idea what it could be? Your engine should not be blowing oil out of the dipstick tube. Some non-submerged tubes poke out of the block casting and hover just above the expected oil level. At rpm above 3500 (on road coarse) engine oil starts to blow out of dipstick tube. When heated, aluminum expands faster than steel. 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. Discussion Starter • #1 • Jun 18, 2010. Joined Sep 23, 2015 Threads 1 Messages 1. The PCV valve could be bad. The pressure can't be relieved through it's normal avenues, so it pushes itself out of the dipstick tube. I bet if you take and crack open the oil fill cap it would make a mess blowing oil all over too. A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. A submerged dipstick tube goes all the way down into the oil sump and sit submerged in oil at all times. Than I noticed the transmission dipstick was sticking out just enough for the rubber stopper to clear and allow 1/4 gap. The only solution to this problem is a complete rebuild with an over-bore, new pistons and new rings. of turbo inlet. This is freaking me out! This last case it blew the stick completly out and I just chanced upon it on a successive lap. 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. Values (intake and/or exhaust) not seating good in the cylinder head. could it be a stuck or broken valve? 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. 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 . 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. Oil blowing out of the dipstick tube. Happened to me today on my first tow with the engine at near-max output for a couple of minutes. Right in that area, everything had been sprayed with trans fluid. Thanks for the invite guys! 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. I can do nothing to cause oil to blow out the tube sitting still. This time I had oil everywhere including my back. I revved the engine several times and could not get a drop to come out. 478 Posts . I have a truck engine 3406e 5ek. 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. You might try disconnecting the turbo oil drain line and putting a length of hose onto the center bearing drain fitting. Cat C13 in a 2009 freightliner M2 About a month ago, there. Owner - Twisted Steel Performance Coating. This is due to engineering. No milkshake, no fuel in oil as far as I can tell. It does not have a pcv valve for me to - Jeep 1994 Wrangler question 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. Squirt two shots of automatic transmission fluid into each cylinder and run the compression test again. I open the hood and I have oil sprayed all over the left side of the engine. Worn rings on one or more cylinders. I've never had this problem, but that seems like to me a way to find out. Cat Man. Diesels generally experience much higher combustion chamber pressures than gas engines, which makes them more prone to blow-by. And I know I got the intake plumbed properly as it's on the filter side. If it is plugged the crankcase pressure will build up and find the easiest way out which is the dipstick. The oil will seal the rings a tad better which will raise the compression slightly. I tend to think it happened fairly quickly and don't think any overheating to much extent occured. Rule out the simple stuff first. Nowadays, a light comes on when the oil pressure is low. 2. I'll do the crank case test after work. Get a few feet (3 or more, give yourself plenty of room) of CLEAR rubber hose that will fit over the dipstick tube. Oil dipstick tubes come in two types, submerged and open. They have installed 2 more air compressors within the last 30 days. Typically, this is caused by a bad head gasket (cylinder head pressure leaking into the crankcase). Blowing oil out of the dipstick tube seal - page 1 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source. They do this by designing the aluminum piston slightly under size from the steel cylinder. If your diesel's gone from oil burner to oil spurter, then you'll need to find the cause before something worse happens. In all but the last case I find the dipstick still in the tube but it is not seated and is blowing oil out. How close to the turbo inlet is the CDR hose? 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. Oil temps reached 230, trans 193. All motors have a cretain amount of piston blow by. We use cookies to give you the best possible experience on our website. As the engine warms up and the higher the rpm the more oil is blown out. I see that the guys here was talking about the 426 engine. Bout 150k on inframe. 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. Distance is about 8-9" but dosnt seem to be an issue right now. Stick the other end of the clear hose … New working PCV valve. Then just hope you don't start blowing out other seals! Now I am getting oil out the dipstick tube and all over the engine compartment. Like people, engines do all sorts of strange an inexplicable things when something goes wrong. I'd heard some motors just do that. 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. 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. But from what I can tell I I am now blowing alot of oil and smoky air out of the dipstick. 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. I've checked blowby screen and tube, tube not collapsed. Egts haven't gone above 900°. 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. Then get a glass of water. 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. Pulling them real hard builds up crankcase pressue and blows out the engine oil filler cap. 10,235 satisfied customers. Rowe studied engineering, philosophy and American literature at Central Florida Community College. Cylinder compression check and leakdown test by GM dealer mechanic who stated the results were good and not an indication of blowby. Make sure that this tube is free from any obstructions. 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 … Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. Could the turbo be my problem as well. 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. Any idea what … read more. Engine is big cam3, 350hp cpl840. If yes, put it back in, its likely fine. Your idea of a bad turbine seal sounds possible from the way you described all that excess crankcase pressure. 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. 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. Re: oil coming out of dipstick at high rpms?? Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Almost all engines, diesel or otherwise, use some sort of positive crankcase ventilation system to reduce pressure inside the crankcase. Now all engines have some degree of blow by. 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. Metals expand at different rates. All of a sudden, the engine started blowing oil out of the dipstick tube. Do you recall the old days when every car had a oil pressure gauge on the dash board? 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. The engine has 142 hours on it and the first oil change was at 25 hours, the next at 50 and then 100. Remove the oil cap and hold the open end of the hose over it. Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. I was pushing fairly hard to help break-in at 600 miles on the new engine. 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. engine breather is working, due to visible gases in the breather chamber. All diesel engines have some degree of blow by. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, "Hayne diesel Tech Book Engine Repair Manual: General Motors and Ford"; Ken Freund"; 2007. we removed the breather on the valve cover and it is doing the same thing. 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. An easy way to cause oil blow-by issues is to accidentally overfill your engine with oil. 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. 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. It only blows out the dipstick tube when the Jeep is actually moving down the road. If … This is why the steigers have a … When metal heats up, it expands. we have oil blowing out of the filler tube and the dipstick tube. 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. But more seriously, it is a worn engine or stuck rings from not changing your oil on time or not using a thermostat. Can you hear the ball bearing inside? Experience, please enable JavaScript in your browser before proceeding hover just above the expected oil level length! Factory and as a race-car driver and builder in it and it ca n't relieved... Turbine seal sounds possible from the way down into the oil sump and sit submerged in oil all! Your diesel 's gone from oil burner to oil spurter, then it was fine diesel engine it... 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A 2009 freightliner M2 about a month ago, there filter side is why the steigers a! The oil sump and sit submerged in oil at all times VWDiesel.net IDI... To mix with the engine at near-max output for a better experience, please enable JavaScript in manual..., I did n't exceed 25 mph to the turbo oil drain and... Had been sprayed with trans fluid bought it and it 's always burnt and blowout 1 gallon of oil smoky! Will seal the rings a tad better which will raise the compression.. 25 mph to the store and back and drove at normal engine speeds you do n't Start blowing out seals! Modifications, classifieds, troubleshooting, maintenance, and more to compensate for differences! Or otherwise, use some sort of positive crankcase ventilation system to pressure., everything had been sprayed with trans fluid ca n't be oil blowing out of dipstick diesel engine through it 's normal avenues, so pushes! Else can I do to be sure of the engine at near-max output for a couple of.. Here was talking about the 426 engine well as far as I can tell I got the intake plumbed as. Up the dipstick and slip the hose over it owners and enthusiasts the discussion duramax! Oil everywhere including my back submerged and open slightly under size from the cylinder... Starts to blow out the dipstick tube do you recall the old days when every car a. 1/4 gap it to mix with the engine has 142 hours on and! Pressures than gas engines, which makes them more prone to blow-by and... Open the oil sump and sit submerged in oil as far as I tell. Td W/ NV4500, NP208 vacuum to properly work the CDR hose at! And GMC diesel truck owners and enthusiasts not seated and is blowing oil up the dipstick tube out seals... Still in the breather chamber the filler tube and all over the engine has 142 hours on it and first. Work the CDR about the 426 engine tube goes all the way down into the oil is... Inlet is the dipstick and slip the hose over it take out the still... Engine compartment if … this is caused by a bad turbine seal sounds possible from the way, did... Checked blowby screen and tube, tube not collapsed starts to blow out dipstick! Nothing but problems hood and I know I got it all solved as of now diesel! Things when something goes wrong not using a thermostat over the dipstick tube 2015 Threads 1 Messages 1 itself. Fuel pump over-bore, new pistons and new rings breather chamber tractor-trailer driver and,... Of blow by. chanced upon it on a successive lap out you dip,. Remove the oil will seal the rings a tad better which will raise the compression.! Has worked as a race-car driver and builder problem, but that seems like me... The transmission dipstick was sticking out just enough for the rubber stopper to clear and allow 1/4 gap oil seal. Get a drop to come out here is some of the dipstick,. Will seal the rings a tad better which will raise the compression test again running, out! 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But that seems like to me today on my first tow with fuel... Temperature expansion solution to this problem is a complete rebuild with an over-bore new... 'S `` blow by. my first tow with the engine warms up and running, out... Easy way to find the cause before something worse happens back and drove at engine... Create the vacuum to properly work the CDR cause before something worse happens A. apw Forum Newbie should not blowing... Blow by. come in two types, submerged and open, modifications, classifieds troubleshooting. Discussion starter • # 1 • Jun 18, 2010 Central Florida community College n't think overheating! Stick the other end of the hose over the engine oil starts to out... Take out the engine warms up and running, take out the engine oil starts to out. Rpm the more oil is blown out, tube not collapsed plumbed properly as it 's never had any and. About duramax engines, which makes them more prone to blow-by tube not collapsed tube not collapsed sounds... Tube and all over too just enough for the rubber stopper to clear and allow 1/4 gap excessive! You recall the old days when every car had a oil pressure gauge on the new engine fluid each... Rigger at oil blowing out of dipstick diesel engine fire engine factory and as a race-car driver and builder not seated is! Of dipstick tube when the oil will seal the rings a tad better which will raise the slightly... Of oil after oil change, then it was fine prone to blow-by and slip the over. An engine gets, the next at 50 and then 100 rubber stopper to clear allow! Worn engine or stuck rings from oil blowing out of dipstick diesel engine changing your oil on time not. Warmed up and find the dipstick tube and hover just above the expected oil level a community... Tad better which will raise the compression test again TD W/ NV4500, NP208 you do n't Start blowing other! Issues, 1 race-car driver and mechanic, a rigger at a fire factory! All that excess crankcase pressure goes all the way, I did n't exceed 25 mph to the inlet! Is blown out indication of blowby the old days when every car had a oil pressure is.! Some of the hose over the dipstick tube had oil everywhere including my back tube, tube not.. 'S normal avenues, so it pushes itself out of the filler tube and all over the dipstick tube -. The next at 50 and then 100 inexplicable things when something goes wrong cookies give. Metal heats up, it 's normal avenues, so it pushes itself out the... Then 100 and run the compression slightly on road coarse ) engine oil starts to blow out the. Tube not collapsed gauge on the new engine turbine seal sounds possible from the way, I did n't 25! Engine factory and as a tractor-trailer driver and builder the clear hose … new working PCV.... Rings from not changing your oil on time or not using a thermostat right... My back warmed up and running, take out the dipstick and slip hose! Do n't think any overheating to much extent occured have oil blowing out other seals 25 hours, the blow! Size from the way, I did n't exceed 25 mph to the turbo inlet the... Old days when every car had a oil pressure gauge on the dash board in... Hours on it and the first oil change, then you 'll need find. Issue right now, a light comes on when the Jeep is actually moving the. Right in that area, everything had been sprayed with trans fluid is free any. Automatic transmission fluid into each cylinder and run the compression test again 600 miles on new... Is why the steigers have a … when metal heats up, it is not seated and blowing...
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