valve lifter stuck!

ok right I have:
1. checked clearance for valves
a. number 4 exaust valve has a clearance of something undern .04. I don't have a ssmall enough gauge.
b. I pulled the lifters out w/ a suction cup, but when i got to the #4 exaust its stuck.

any inputs?
Joe

Post edited by: Joe, at: 2007/03/18 17:11

also the clearances were as follows:
Exaust
1 .09
2 ..1
3 .2
4 something under .04
Intake
5 .1
6 .07
7 .1
8 .09

Does it move at all? I once thought athe number four was jammed somehow but it was just hitting the cam end cap:whistle:

its stuck, it not hittin the end cap. i guess i'm gonna have to lift the whole casing off.

Joe wrote:

... pulled the lifters out w/ a suction cup, but when i got to the #4 exaust its stuck. any inputs?

Uncertain but thinking '81 550A2 has shim under bucket design, and wondering if cams have been removed and the bucket (lifter ) is stuck or the valve itself is stuck.

If "lift the whole casing off" refers to the camshaft, sounds like shim over bucket design where the special valve adjustment tool is used to hold the valve open and allow shim removal.

Maybe just misunderstanding the question as my experience is with shim over bucket.

Post edited by: Patton, at: 2007/03/18 18:40

there is a lifter then a shim under that into the valve casing,spring etc... I can't get the lifter itself out of the engine block itself. to get the valve out, I have to get the lifter out. I'm dumbfounded. I don't want to eat up the lifter, but at the same time it needs to come out.
Joe

Here's an archive link with some info that might help.

stuck lifter

Before removing the head to heat in oven, might consider torch heating head area around lifter (hoping greater aluminum expansion would loosen grip on steel lifter).

Hope someone more experienced will add better advice as I'm just guessing.

soak it down really good;)

In a case like this, I'd get a can of PB Blaster penetrating oil and heat the area around the lifter with a heat gun after giving the PB Blaster a good shot around the lifter and let it work it's way down between the tappet bore and the tappet.

put a small wooden dowel on the bucket and tap it genty with a hammer. If it'stuck that should free it. If not...?

use a strong magnet, and rotate it as you bring it up.

if that dosent workit may have a burr on it, use a brass punch and a small hammer, tap around the edges that are up, go all the way around, then try the magnet again

And when all else fails, with the cam out, you can grab the lifter with a chanel lock plyers and pull it out.

Jay