1988 Toyota Corolla blow bye?

WAYNEMMM

MEMBER
1988 TOYOTA COROLLA
4 CYL
FWD
MANUAL
250,000 MILES

Hi I have heaps of air pressure with oil coming from tappet cover to air cleaner// the amount of oil soaked the air filter there are 2pipes from valve cover/1is the pvc valve the other is abreater
the carby was changed before I got car/
the air presue comes oil dipstick/oil cap if opened and running
is there any way to byepass this air and oil some where elese so it dont destroy another air filter/
i did run the car with the front of the car on stands a couple of times/never noticed all the oil in air cleaner untill I had replaced cranksharft oil seal timing side then noticed this isue of

emisson contrl /the car blows no smoke what so ever?

3 Replies

MHPAUTOS

MECHANIC
31,938 POSTS

This excessive crankcase pressure is due to worn piston rings, excessive combustion pressure is by passing the rings and over pressurising the sump, atomised oil in the air is entering the air filter via the breather, and condensing back into what you see. Short answer is re build.

Mark (mhpautos)

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Sunday, April 6th, 2008 AT 1:02 AM

WAYNEMMM

MEMBER
1 POST

I have just done a compression test left to right/
number 1 =175psi/1200kpa.2 =80psi/
3 =170psi.4 =165psi roughly
put oil in 2 no differance/2crankings/ checked rest then put more oiil in 2 =110psi reset then got 100psi,
the car has been off the road 8+ months I drove it for say 80klm the crankseal was hardened and was easy to get out/ my $300 +seal&sump gasket bargin is not that special now the air filter is that old its hardend and cracked upon good inspection

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Monday, April 7th, 2008 AT 4:54 AM

MHPAUTOS

MECHANIC
31,938 POSTS

Yes. Sorry to hear that, there is not a lot you can do, a re ring is an option, but thats only a temporary fix, the engine is just worn out.

Mark )mhpautos)

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Monday, April 7th, 2008 AT 6:03 AM