I am debating what to do with my 96 S10 2.2.
Truck is still running fine. but the oil pressure drops to
near zero after it warms up at idle. and when its cold, the
piston slap clatters like a diesel. (yes, i changed the oil pressure
sensor)
From what i researched, the cam bearings are a common culprit for
low oil pressure. this truck did have the head gasket replaced before
i got it, and the head redone after i got it due to the timing chain
slipping ad bending all 8 valves.
i am trying to do this myself of with assistance.
questions:
what type of tool is required to remove and install cam bearings on
a 2.2? is it the same as a small block tool?
Its not burning any oil to speak of (leaks a little and does not smoke)
what to do with the bores? simply hone and replace rings?
or bore how much? 10 over with new pistons (assuming minimal scuffing
from piston slap. Are there any new types of pistons that minimize
piston slap?
If the crank journals look ok, do i really need to get the crank
ground?
I was possibly looking at getting front drive core to start work on
to speed the process up and not lose the truck for driving.
Any issues with using a front drive 2.2 other than the water hole
in the head? I assume too from research it must be a 96-98 engine
to be the same? do automatic or stick have different cams or flywheel
mounts?
The head was just redone less than a year ago. can i just clean it
and reinstall? or do i need to have it decked again?
The only other thought i had was there was a higher volume oil pump for
the early 90's 2.2. i considered putting just a new hi-po pump in as
a stop gap, but wondered if it would do much good.
Any other 2.2 tips?
Bob
