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Old 10-08-2003, 05:18 AM
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Roller cam break-in?

I have chosen a Comp solid roller for my engine build and also have double springs with about 190lbs of seat pressure. I have heared that when using heavy springs you should run the cam in (about 20mins at 2500rpm) without the inner springs installed. But I am pretty sure that rollers don't need any run-in time. Should I just install both inners and outers and go for it, or is there still a break-in period?

Also do I still need to use moly lube on the lobes?

Thanks.

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Old 10-08-2003, 05:59 AM
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No need for "break in" on a roller cam but the use of moly lube is recommended... Just remember after running the engine at operating temp after startup and shutdown to allow it to cool and R&R the oil filter as the moly lube will gel up in the filter and possibly plug it...
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Old 10-08-2003, 11:34 AM
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Both solid and hydraulic roller cams DO NOT require break in. Yes go and use both inner and outer springs when u start it up for the first time. And always use a moly lube on the cam and lifters. Darn i love cams that dont need a break in.
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Old 10-08-2003, 04:01 PM
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OK I'll bite. Why no break in for roller cams? Oh wait. Is it because the lifters always run the same pattern? I know very little about rollers. Only that they are more expensive.
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