GLHTurbo

Hey Guys,

I just found this forum, seems like a great resource for my new 94 2wd 22re 5spd pickup. I bought it with a bad head...the previous owner had the timing chain replaced, and then the cam seized up in 1 journal, I figure either the head was warped or they overtorqued it. Anyway, they let it sit with no plugs in the damn head from when they were diagnosing it I guess! I ordered a replacement head, and removed the existing head, and found this....this picture if after I cleaned it up a bit with brake cleaner, wd40, and some papertowels and 000 synthetic steel wool pads...I didn't work on it that long though. I think the rust is surface only, bonded strongly to the metal, I am able to remove it sloooooowly it seems. I did find this product though, any thoughts on it? its called evapo-rust...seems amazing! Anyway, heres a pic! Thanks in advance guys!

-Marc

scrid

How far are you planning to go with it?
Are you going to pull the pistons?
My main concern right now would be what shape are the rings in
if your not planning to rering it.
I would get all the pistons lined up evenly across the top and fill the
cylinders up with solvent.
Check it in a couple hours and see how much leakage you have if any. Personally I'd remove the pistons and get a good hone in there.
Re-ring it and break it in with a straight weight oil to allows the cylinder walls
to build a nice glaze coat over any remaining pits or scratches.
I fixed a Honda Civic years ago that broke a valve head clean off
and they ran the engine so long that valve head beat holes in either
side of the piston next to the wrist pin.
The valve head looked like a hershys kiss...nice and smooth rounded edges
i wish I had saved it! The cylinder walls had some deep pits too.
I dropped the pan. honed the piss outta that cylinder, broke the
glaze on the remaining 3 and re-ringed it with one "used" piston from the junkyard. I was pretty poor back then and drove that car for 4 years
until my nephew needed a vehicle, and then he bought it off me for 200
bucks. He ran it for a little over a year and let it overheat so he popped a
headgasket. I pulled the head and repaired it for him which allowed me to
see that cylinder again.
It was a thing of beauty!
All those deep pits were still visible through the amber glaze on the cylinder
wall. You could run your fingernail over them but couldn't feel them.
It looked like they were sealed under a varnish.
The engine never smoked until he blew that headhgasket.
Once repaired the car ran fine again.