Quote:
Originally Posted by runmikeyrun
. . .
Either the intake valve is sticking open or lifter is sticking and holding the valve open.
If it’s the lifter am I looking at running some Marvel to see if it will free up? Or will I have to pull the intake and valley pan and yank it out?
Thanks guys for all your help so far!
https://youtu.be/wpu7ulExw0o |
Back in post #1, did you say the engine was rebuilt last winter?
After looking at your 6 sec video the lifter seems to be sticking in it's 'up' position, or I'd expect the pushrod to drop. It's possible that surface tension of the oil is holding the pushrod up, so it could be a stuck valve.
If it's a sticky lifter the MMO might loosen it up, but whatever is causing it to stick is not a good thing.
For a pushrod to have fallen out without it being bent the valve would be sticking open, unless the adjusting screw on that valve was very loose to start with.
Taking off the intake manifold and valley pan will let you see the top of the lifters.
To remove the lifters the cam has to come out.
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