The crankcase builds pressure then blows the dipstick out, then oil is blown all over the driver side of the engine. Using a quart of oil in 15 miles. When the dipstick is nice and tight the pressure seems to go through the rings and the engine smokes terribly. Have already replaced the pcv valve, no change...
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Re: crankcase builds pressure
If your blowing smoke out the pipe then the oil rings are bad , thus the pressure from explosion in the cylinder is going into the crankcase, which would mean the pressure rings are going bad also.
so you have loss of power also?
you should get it repaired soon or you could blow a gasket also and then it could crack the head or block
hope this info is worth a fixya , and if you need more assistance then just ask me and I'll help
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Depends on the cause.
Blow-by is when oil blows by the rings in the cylinders into the combustion chambers or compression blows by the rings into the crankcase. It can also be caused when too much pressure builds up in the crankcase because of a venting problem.
So blow-by can cause smoke out the tailpipe from oil burning with gasoline, or oil collecting in the air cleaner, or blowing out a seal or other place like your dipstick tube.
If it is caused by worn piston rings, the rings have to be replaced.
If it is a venting problem, you need to open up the vent, like the PCV valve or the air intake port.
If you remove the cap where you add oil and there is a vacuum when the engine is running, the venting system is working. If oil blows out the hole, there is too much pressure in the crankcase.
check your PCV ( positive crankcase valve ). It sounds like you are building up pressure inside the block and the valve isn't regulating it like it's supposed to....that pressure has to go somewhere and the dipstick is the next weakest link.
all engines burn oil, ALL! and if you dive faster, it burns more. (rate) you did not state the rate, here in USA we do quarts per mile (liters are same ) 1 qt/ 3000 miles is norm. but if you dont service a vehicle , for sure every 60miles. 100km. the PCV valve will clog and the crankcase will go over pressure, and the car will leak and burn more oil. the dip stick hole must **** not blow. if it dont **** , running, the PCV is DEAD ! (1960 to present same deal)
have you checked the pcv valve ( positive crankcase ventilation ). plugged pvc symtoms-- can contribute to sludging of engine. it will build up pressure in crankcase if plugged. the pressure can blow out seals, it can also force oil past oil rings and burn oil up in engine. shake pcv valve, if it rattles its ok. if all else fails check oil pan gasket and filter also. ive seen holes in oil filters or they are loose. and upon driving, pressure is put on oil and it blows out.
Add about 2.5-quarts of new engine oil to the engine.
Remove the passenger-side wheel, and support the car on jack-stands.
Start the engine and look for oil leak.
Chances are leaks are coming from failed oil-pan gasket or the drain-plug.
The head-cover gasket could be failing as well..