KA24e smoking

[LT_Z]

I did a compression test and got 140-145across. But at 2k idle there is grey white smoke, and under hard rev there is kinda darker smoke. Is this engine dust ? or is ther something else im might be overlooking in the fuel systeM ?

THanx

[quiksilvia]

about 99% of the time white smoke is gonna be coolant, darker smoke could be oil ,and both would meen that u need a new head gasket, but with consistent psi across im not sure, maybe its a picky head gasket

[sohc240]

I'm no expert, but I think 145psi is below the min. compression. Might be time for a rebuild or it could just be a head gasket.

[quiksilvia]

they shouldnt be the same across, it should be at the most 75 % difference between some. ie-150 in the highest, 113 psi in the lowest, they should not be all the smae though, how did u do the test?

[LT_Z]

Well i was reading in here a bit and i think i might have tested wrong. I pulled single plugs one at a time and did not hold TB wide open. Lemme see :

Pull all plugs / coil wire Hold TB WOTTest one at a time Turn engine over 7-8 times ?

is this correct ?

thanx for the help

[DAEDALUS]

Pull injector fuse too and test with the engine warm. The numbers should go higher without all plugs and with the TB open.

[LT_Z]

if that is the case then would it be the head gasket ? what about the PCV would that cause that type of smoking ?

[Boricua]

Well if is the PCV (i dont really know) but maybe PCV is about $8.00 to $11.00, and in a KA24e 1989, 1990, maybe you can change in about 5 minutes

[90drifter]

$1.99 at the zone