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Author Topic:   eating cams
racer1m2000
Member
posted July 24, 2004 09:30 PM
Have put 2 cams in a 383 both have ate lobes and lifters after a short time. These are used cams taken out of other motors of ours. Lifters were put back in same bore. Any ideas?


15a
Member
posted July 24, 2004 09:53 PM
What are you using to lube it all before firing it? What break in procedure are you using? I never use the cam pre lube stuff on a used cam, it promotes wearing contact patches (or so I am told) so if you already have them you don't need that, you just need to keep it lubed. I use a ton of STP oil tretment or Lucas oil stabilizer. But the break in procedure I still use. You gotta get the oil splashed on it to keep it alive.


77k
Member
posted July 25, 2004 10:57 PM
Stock rod bolts can hit the cam if not ground.


leftturn73
Member
posted July 26, 2004 11:19 AM
Take a brake cylinder hone and hone the lifter bores then clean and lightly lube. Then insert each lifter and make sure they rotate correctly. I had one motor do the same as yours and relized I did not hone the lifter bores as I usually do. I honed the bores and away you go.


bobberpopper
Member
posted August 03, 2004 10:34 PM
quote:
Originally posted by racer1m2000:
Have put 2 cams in a 383 both have ate lobes and lifters after a short time. These are used cams taken out of other motors of ours. Lifters were put back in same bore. Any ideas?

There is alot of thangs that can cause you to eat cams ,Is your rockers to tight,are you gettig enough oil to the cam whats your oil presure did you have the block check for conecting rod clerace did you lub the cams did you do a run in period befor you ajusted the valves also what kind of spings are you running the spings need to match the cam


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