Engine Mechanical problem
1994 Toyota Corolla 4 cyl Front Wheel Drive Automatic 600 miles
I have a 94 Toyota Corolla with a 1.8 engine. I bought it with spun rod bearings, I had the crank ground 30 and the mains 10, the machine shop said the cylinders were fine with standard bore, had a valve job done. After 600 miles it is still using oil, about 4 quarts to 600 miles. It smokes a little but it seams to be blowing it out the tail pipe. I've done a compression test both dry and wet, between 190 and 210 psi. I did a leak down test, cylinders 1 and 2 had 15 % leakage while 3 and 4 had 5 %. I had found oil up in the intake and I removed the oil filler cap while it was running and oil was blowing out like I had a lot of blow by. What else could be causing the pressure? I put a new oil pump in it, could it be putting out to much pressure? The pistons and plugs are covered with oil.
Hi there, do an oil pressure test, just to see what it is, run a hose from the pc valve into a container and run the engine for a good 15 -30 min hot, see how much oil is passing into the manifold, you may have excessive oil in the over head gear and a faulty pc valve drawing oil into the manifold and the engine, Were new exhaust vale guides fitted when the had was done.
March, 6, 2008 AT 9:57 PM
Well I did the oil pressure test I had 40 to 60 psi and no oil came out of the pcv valve. I still have oil sitting on the 2-3-4 pistons #1 is dry. The machine shop did not replace the valve guides. Is there a possibillity that it could be coming from there? This car has a mulit layer head gasket could the oil be tracking through it and seeping on the pistons but not show as a compression leak during either leak down or normal compression test? What about a oil galley cracked? I'm at a loss, never had so much trouble with a engine.
March, 7, 2008 AT 1:38 AM
I feel that you may have a gasket problem, valve guides would have to be non existent for that much oil to by pass, I would remove the in let manifold first and inspect for oil, if clean, head and gasket next. Was head crack tested?