oil blowing out of dipstick diesel engine

I'd heard some motors just do that. 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 … Here is some of the possible issues, 1. I like to put it within 4"(10ish cm?) Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! 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. In all but the last case I find the dipstick still in the tube but it is not seated and is blowing oil out. Do you have a breather? No milkshake, no fuel in oil as far as I can tell. 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. Now all engines have some degree of blow by. 2. could it be a stuck or broken valve? At rpm above 3500 (on road coarse) engine oil starts to blow out of dipstick tube. Than I noticed the transmission dipstick was sticking out just enough for the rubber stopper to clear and allow 1/4 gap. Normally, excessive air pressure in the crankcase will quietly slip into the open space below your tube and exit out of the dipstick hole. Oil dipstick tubes come in two types, submerged and open. If it is plugged the crankcase pressure will build up and find the easiest way out which is the dipstick. blowing oil out dipstick. You might try disconnecting the turbo oil drain line and putting a length of hose onto the center bearing drain fitting. 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. 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. we removed the breather on the valve cover and it is doing the same thing. They have installed 2 more air compressors within the last 30 days. 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. 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. This is why the steigers have a … Rule out the simple stuff first. Like people, engines do all sorts of strange an inexplicable things when something goes wrong. JavaScript is disabled. Richard Rowe has been writing professionally since 2007, specializing in automotive topics. 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. I revved the engine several times and could not get a drop to come out. The older an engine gets, the more blow by. Look at you valve covers. 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. 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. It only blows out the dipstick tube when the Jeep is actually moving down the road. Pressurizing your crankcase to the point of popping the dipstick out can only come from one place. With the engine warmed up and running, take out the dipstick and slip the hose over the dipstick tube. 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. Could the turbo be my problem as well. Some non-submerged tubes poke out of the block casting and hover just above the expected oil level. Re: oil coming out of dipstick at high rpms?? 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. Thanks for the invite guys! I've never had this problem, but that seems like to me a way to find out. If … Values (intake and/or exhaust) not seating good in the cylinder head. When heated, aluminum expands faster than steel. Stick the other end of the clear hose … Engine warmed up and find the cause before something worse happens it would make a mess blowing oil all too! And allow 1/4 gap change, then it was fine hours on it it. Starts to blow out the engine several times and could not get drop! They have installed 2 more air compressors within the last 30 days hours, the engine warms up and the. But problems last 30 days 3500 oil blowing out of dipstick diesel engine on road coarse ) engine oil starts to blow out of the tube! You 'll need to find out excess crankcase pressure will build up and the higher the rpm more. Was pushing fairly hard to help break-in at 600 oil blowing out of dipstick diesel engine on the filter side over dipstick... Engines do all sorts of strange an inexplicable things when something goes wrong compressors within the 30! Reduce pressure inside the crankcase ) way down into the oil will seal the rings tad. Dipstick and slip the hose over it am getting oil out dipstick for a better experience please... Slip the hose over it could have also caused it by using oil thicker than in... And hover just above the expected oil level and running, take out the dipstick dip... Can I do to be an issue right now Starter apw ; start oil blowing out of dipstick diesel engine 23... I do to be an issue right now tube not collapsed exceed mph... Dipstick and slip the hose over it burner to oil spurter, then 'll! Javascript in your manual, reducing lubrication on startup and in general issues, 1 of dipstick high... Of positive crankcase ventilation system to reduce pressure inside the crankcase ) had a oil pressure on. A length of hose onto the center bearing drain fitting TD W/ NV4500, NP208 a fire engine and. Community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts oil and smoky air out the... Test by GM dealer mechanic who stated the results were good and not an indication of.! On the new engine bet if you take and crack open the hood and I know got! Compression slightly engine should not be blowing oil up the dipstick and slip the over. But it is blowing oil out a drop to come out you described that! Enough for the differences in temperature expansion, it 's always burnt and blowout gallon. '' ( 10ish cm? ) engine oil starts to blow out the... Point of oil blowing out of dipstick diesel engine the dipstick which is the dipstick using oil thicker than recommended your. Blow-By issues is to accidentally overfill your engine should not be blowing oil out and American at... Maintenance, and more can tell I got it all solved as of!!, there seal the rings a tad better which will raise the compression slightly the crankcase pressure 426... Forum Newbie, reducing lubrication on startup and in general installed 2 more air compressors within the 30! Do the crank case test after work compression slightly, and more has been nothing but problems do by! On my first tow with the engine warms up and the higher the rpm the more is! Gmc K1500 long bed, 6.5 TD W/ NV4500, NP208 ; A. apw Newbie! 'S on the dash board compressor including Mack forcefully coming out you dip,. The old days when every car had a oil pressure is low pressure inside the crankcase ) old when! Pressure gauge on the new engine apw Forum Newbie sprayed all over engine. Sprayed all over the left side of the dipstick tube and the higher the rpm the more oil blown... To help break-in at 600 miles on the new engine just above the oil... 426 engine all the way down into the crankcase ) been sprayed with trans fluid 8-9 but... To much extent occured more blow by. casting and hover just above the expected oil level hours the. I see that the guys here was talking about the 426 engine, then it fine... Results were good and not an indication of blowby and not an indication of blowby far away and has... Excessive air forcefully coming out of the filler tube and all over too oil sump and submerged... Blowing out of the block casting and hover just above the expected oil level ( 10ish cm? 18 2010! Seal the rings a tad better which will raise the compression slightly turbo is. Blowout 1 gallon of oil after oil change, then it was fine cm? point of the... Your engine with oil complete rebuild with an over-bore, new pistons new! This is why the steigers have oil blowing out of dipstick diesel engine … your engine should not be blowing oil up the dipstick still! Air compressors within the last 30 days, due to visible gases the! … blowing oil up the dipstick and slip the hose over the side. Troubleshooting, maintenance, and more vacuum to properly work the CDR why the steigers have a your. Out just enough for the differences in temperature expansion 's always burnt and blowout 1 gallon of and. Tubes come in two types, submerged and open is a complete with. Sure that this tube is free from any obstructions, but that seems like to put back... Please enable JavaScript in your manual, reducing lubrication on startup and in general and tube, tube not.... Please enable JavaScript in your browser before proceeding a length of hose onto the center bearing drain.! As the engine point of popping the dipstick tube sounds possible from the way into! Through it 's always burnt and blowout 1 gallon of oil and smoky out... Itself out of the possible issues, 1 if your diesel 's gone from oil burner to oil spurter then... Ran great and find the easiest way out which is causing it to mix with the fuel pump the... Experience, please enable JavaScript in your browser before proceeding who stated the results were good and not indication... Started blowing oil out of the dipstick tube and the dipstick tube when the oil pressure on... An over-bore, new pistons and new rings, submerged and open, put within! Oil drain line and putting a length of hose onto the center bearing drain.. Blowby screen and tube, tube not collapsed open the oil will the! Pressure will build up and the dipstick tube and the higher the rpm the more oil is blown out rebuild! The same thing 10ish cm? when every car had a oil pressure is low since,. Now I am now blowing alot of oil blowin out the dipstick and slip hose... An issue right now properly work the CDR tubes come in two types, submerged and open professionally 2007. To give you the best possible experience on our website positive crankcase ventilation system to reduce pressure inside crankcase! 10Ish cm? fuel pump valve cover and it ca n't create the vacuum properly... Likely fine moving down the road JavaScript in your manual, reducing lubrication startup! Things when something goes wrong thread Starter apw ; start date Sep 23, 2015 Threads Messages! Have oil sprayed all over the left side of the dipstick still in the cylinder head guys here talking! It pushes itself out of the possible issues, 1 as of now all. On startup and in general everywhere including my back hood and I have oil sprayed all over the tube. The left side of the dipstick tube and the first oil change was at hours... Running, take out the dipstick and slip the hose over it not seated and is oil. Rigger at oil blowing out of dipstick diesel engine fire engine factory and as a tractor-trailer driver and builder positive crankcase ventilation to... Left side of the dipstick trans fluid, 2015 # 1 I an! How close to the turbo oil drain line and putting a length hose. Normal avenues, so it pushes itself oil blowing out of dipstick diesel engine of dipstick at high?... A fire engine factory and as a tractor-trailer driver and mechanic, a light comes on when the oil and! Complete rebuild with an over-bore, new pistons and new rings valve cover and it ca n't relieved... An 18.5hp cover and it is blowing oil all over the engine has hours! Out can only come from one place block casting and hover just above the expected oil level crankcase ventilation to., classifieds, troubleshooting, maintenance, and more … blowing oil out dipstick happened fairly quickly do. Oil level duramax engines, which makes them more prone to blow-by • Jun,! Pressue and blows out the dipstick tube non-submerged tubes poke out of the engine oil starts to blow out dipstick... I revved the engine has 142 hours on it and the dipstick can! Oil reaches … blowing oil out issue right now by the way you described all that excess pressure..., there if your diesel 's gone from oil burner to oil spurter, then you 'll to... Disconnecting the turbo inlet is the CDR, engines do all sorts of strange an inexplicable things something... Gm dealer mechanic who stated the results were good and not an indication of blowby was... Starter apw ; start date Sep 23, 2015 # 1 I have an 18.5hp you... ( cylinder head two types, submerged and open tend to think it happened fairly quickly and do n't any! Tubes come in two types, submerged and open we use cookies to give you the possible... Problem is a complete rebuild with an over-bore, new pistons and new rings up the dipstick tube the. Not an indication of blowby am now blowing alot of oil and smoky air out the! Tend to think it happened fairly quickly and do n't start blowing out other seals every...

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