Two lifters not pumping up
Thread Starter
Pro
Joined: Mar 2004
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From: Springfield Ohio
Two lifters not pumping up
Just put new cam & heads on my 04 with new link bar lifters. I have not installed rockers or measured for push rods, however, I have turned the engine over by hand and inserted adjustable push rods to check the lifters. Two of the lifters on one cylinder are soft and springy. The others appear to have pumped up and are solid when I put pressure on them. Do I have a problem with these two or will they pump up once the engine is running?
Team Owner
Joined: Jul 2012
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From: Central PA. - - My AR15 identifies as a muzzleloader
I believe in the Beer Fairy
They've gotta have oil pressure to pump up. Yes, the motor needs to at least turn over quickly enough to build some. Other than being full of air, there's nothing wrong with em.
Team Owner
Joined: Jul 2012
Posts: 34,479
Likes: 532
From: Central PA. - - My AR15 identifies as a muzzleloader
I believe in the Beer Fairy
You might have some bottomed out already for all I know. Perhaps most of em. I'd be inclined to loosen them back up some and re-tighten feeling just for that spring pressure so as to take the slop out of em, then crank the motor over to get some oil in em. Perhaps someone who's done more cam swaps than I will be along to offer up some better advice. Bottom line is, they're just a little hydraulic cylinder. Yes they are spring loaded and will collapse if there's no oil in em.
Thread Starter
Pro
Joined: Mar 2004
Posts: 714
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From: Springfield Ohio
No, didn't soak them before the install. Read a lot of posts and it seems some think soaking them is important and others don't. I'll have to install the water pump and and a couple more parts before I can spin the motor. Will the instake manifold and fuel lines need to be installed to crank the engine?
Team Owner
Joined: Jul 2012
Posts: 34,479
Likes: 532
From: Central PA. - - My AR15 identifies as a muzzleloader
I believe in the Beer Fairy
Well if the fuel lines are not installed you'll definitely have to pull the relay for the fuel pump or you'll have gas all over the place.
