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runmikeyrun · 08-06-2018, 10:38 AM

A couple days soaking with MMO didn’t unstick that lifter (I simply cranked the engine over a few times and watched). At this point I have two choices:

1. Put the valve cover back on and run the truck for a while, hoping the lifter frees up.

(Subquestion: can I run the truck with the valve cover off? Or will I get oil running all over?)

2. Put the #4 cylinder to TDC and pull that valve spring and check to make sure that valve isn’t bent/sticking.

Part of me wants to check the valve as long as I already have the valve cover off; the other part says the valve isn’t the problem, it’s the lifter so I shouldn’t waste the time taking it apart.

I have to run out of town for the night, I’ll be back working at it tomorrow evening (Tuesday).

Thanks!

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08-06-2018, 10:38 AM	#44
runmikeyrun Senior Member Join Date: Apr 2018 Posts: 124	Re: Pulling my hair out over this misfire A couple days soaking with MMO didn’t unstick that lifter (I simply cranked the engine over a few times and watched). At this point I have two choices: 1. Put the valve cover back on and run the truck for a while, hoping the lifter frees up. (Subquestion: can I run the truck with the valve cover off? Or will I get oil running all over?) 2. Put the #4 cylinder to TDC and pull that valve spring and check to make sure that valve isn’t bent/sticking. Part of me wants to check the valve as long as I already have the valve cover off; the other part says the valve isn’t the problem, it’s the lifter so I shouldn’t waste the time taking it apart. I have to run out of town for the night, I’ll be back working at it tomorrow evening (Tuesday). Thanks! Sent from my iPhone using Tapatalk