What PSI should the cylinder be for valve stem seal replacement?

[jmitro]

I think 20-30psi did it for me.

it took me 5 weeks.
and I dropped an exhaust valve in the cylinder.

managed to retrieve it without pulling the head

[byM5]

Originally Posted by jmitro

I think 20-30psi did it for me.

it took me 5 weeks.
and I dropped an exhaust valve in the cylinder.

managed to retrieve it without pulling the head

Sorry.

I decided to go against the norms and do all exhaust and then all intake one bank at a time.
The switching back and forth was making me nervous.

I thought developing a repetitive motion would be better for the first timer.
I felt quicker and more confident repeating the same task vs switching back and forth between intake and exhaust to complete one cylinder at a time. It's not that hard to rotate the crankshaft! I got 6 exhaust done in 4hrs.
I also modified a long flat head screwdriver so that the intake spring arm could be easily controlled and guided back onto the valvetronic roller on top of the lifter.
I don't know if all my terms are correct, so feel free to rename them.

Those darn valve keepers are pain to get on!! I think that is the hardest part!!

So, I have things at 80psi.
All exhaust on bank 1 are done!

Next up all intake on bank 1 except cylinder 1 since that was the first one.

Thanks!!