Engine Troubles

[«Cyph3r»]

1JZ needs rebuild????

2day i pulled all the plugs on my toyota and noticed when removing the plug for cylinder 2 (2nd from the back) it had a coat of engine oil on it So it seems things just keep getting better.

I am going to do a compression test to check all cylinders properly but at this stage looks like i'm up for a rebuild.

I am leaning towards waiting till i can afford a set of forged pistons and rods etc.... does anyone think i should bother or just replace the rings as long as the rest of the internals are fine.

I just got told that it could be a valve stem seal. IS there anyway to tell which it is without pulling the head off?

Thanks guys

Jamie

[CrazyMan]

yep, on the right track, do a compression test, and if only one is down, could be the rings. if a couple of cylinders adjacent to each other are down, id be suggesting a head gasket.check for bubbles in your coolant, and/or water in your oil. A valve stem seal cant really cause low compression, but if the valve isnt seating right, that will. if there is a lot of oil on the plug, good chances are it is the rings. check for bubbles in your coolant, and/or water in your oil

[CrazyMan]

another thing is aquirt a bit of oil down the spark plug hole, and then compression test it again. if the reading goes up, i'd bet on rings

[«Cyph3r»]

thanks crazyman .....

btw i meant 2nd cylinder back from the front of the engine bay. Also the engine oil was unburnt when i pulled the plug. The car had been not run for a week.

Jamie