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Old 04-16-2010, 09:04 AM
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350 chevy lifter failure

lifter is making a ticking noise
Looking for procedure on how to replace

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Old 04-16-2010, 11:01 AM
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take off the valve covers, take nut off of rocker arm, take off rocker arm, pull push rods out, tip block up side down and they should fall right out but make sure you empty the coolant and oil out first before you tip it upside down
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Old 04-16-2010, 11:19 AM
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Pull the valve covers, intake manifold, remove the rocker arm adjustment nut, rocker arm, push rod. However one thing to remember is, if it`s just a collapsed lifter you can sometimes run a can of seafoam 20 minutes before a oil change and this will sometimes get the trash out of the lifter and it`s okay from there. In other cases, usually lifters don`t go bad, so it would be a good idea if you checked the cam. With just the valve covers off, start the engine and let it idle, check the rocker arm motions, if you see a rocker barely moving compared to the others you have a bad cam.
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Old 04-16-2010, 01:18 PM
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Quote:
Originally Posted by russrob87
lifter is making a ticking noise
Looking for procedure on how to replace
Replacing a lifter on an old cam w/a new lifter is the least preferred way of going about things. If you put a new lifter on an old, worn cam, the chances of the lifter breaking in w/o wearing badly isn't good.

There are other reasons to have a noisy lifter. Readjust it first. If that doesn't help, check that there's no problem w/the spring being damaged, that the rocker arm or valve tip isn't worn, and the push rods is straight then go on to the lifter itself.

If you can for sure locate which lifter is the culprit, remove just it and take it apart after determining the cam lobe and lifter foot are not overly worn, clean everything in solvent, dry, re lube w/motor oil and reassemble it and reinstall the lifter in the exact same hole it came from.

Before dropping the lifter in place, lube the "foot" of the lifter (not the body- just the bottom, or foot) and the cam lobe (use a paint brush that will fit down the lifter hole) w/moly cam lube. The body of the lifter gets motor oil.

Readjust the lifter on the base circle of the cam and w/luck, you'll be good to go.

Good luck.
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Old 04-16-2010, 02:30 PM
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sticking valve too...

i had the exact same problem... changed all the lifters and shortly afterwards it started again.. i figured the only thing i didn't do want re-do the heads... did that and no more problems.... if u deside to replace the lifters??? before u put them in, put the primer into the oil pump and ck oil flow.. u'll get oil on the drivers side, the put in lifters and do it again for the pass side.. oil should gush out of the rear lifter holes of cyl 7 and 8.. don't forget u need to put lifters in the drivers side to get oil to the pass side..
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