1Bad69

I have removed the cover..should i turn the car over and watch the valvetrain?

what do they mean when they say it is sticking?

Thanks Mike

1Bad69

started it up and valve is stuck..looks like it is stuck partially open...just sprayed it with wd-40..should i tap on it with a hammer?

bashcraft

I would tap it a few times and see what happens.

Are you sure that valve didn't hit the piston and bend? That would hold it open too.

1Bad69

im pretty sure its jsut stuck...the car has been sitting for 2 years with a few drives in the summer to keep it rolling..i think thats what did it..

i removed the rocker arm and checked the rod..it's ok..not bent at all... i guess i will keep spraying it and tapping it with a hammer to fee it up...

S489

whenever i've run across a sticking valve, the engine had a dead miss on that cylinder and so was easy to locate. otherwise, i'd turn it over going thru the routine as if i were setting the valves. check the lash. a sticking valve would have too much lash, i.e., usually an exhaust valve is not closing completely. as an example, when the exhaust valve guides wear, some of the exhaust gases accumulate between the valve and guide.

7t2vette

When you removed the rocker arm, could you see that the valve was stuck open, the spring was staying compressed? When you turned over the engine with the rocker arm installed, did the valve open fully but return to a partially open position?

1Bad69

bruce..it is the intake valve and when i fired the engine over the valve is not doing anythinig..stuck on open..i took the rod out and its not bent...

S489

try spraying the valve stem with solvent of your choice (use rags to catch overspray) and with the rocker removed, hit the top of the stem with a rubber mallet. the object is to work the valve up and down while getting solvent to do its thing. hopefully, the valve will work its way closed again. good luck!!!

1Bad69

tried that earlier...did not work...could the valve itself be fried causing it to not seat properly?

tomcat65

Try spray some freeze spray on the stem (the stem only ),
then tap on it

Matt Gruber

pull the head.
prolly valve got wacked by piston