Cam Install break in procedures?

[jdbubb at verizon.net (Dan Bubb)]

If you have a "quality" cam, basically made from a chill hardened blank, then there is no break in required.
Cam break in, if required, generally involves special moly break in grease and holding the revs above some lower limit like 2000 RPM for 20 or 30 minutes. The reason is the high contact pressures and the possibility of micro-welding and subsequent pitting of the cam or lifter surface. Holding the revs up prevents this. I don't think I've ever seen an upper rev limit for cam break in.
I've always used OEM, Schrick or TT cams and you install it, pour some oil on it and run it.
OTOH, two Eurospec copies of the Schrick 272 cam couldn't be saved from chewing themselves up no matter what magical goo was applied or how they were run.
Dan

From: "Cory Langford" <Cory_Langford@bcit.ca>
Sent: Wednesday, June 14, 2006 11:11 AM
Subject: Cam Install break in procedures?


> Okay, question is, when you put in a new cam with new lifters (figured 
> might as well while I have it a part) is there a break in procedure you 
> need to follow?
> 
> IE: do you need to not rev to a certain point for a period of time, etc?
> 
> Things are getting a little tight for my schedule.  I am finishing the 
> engine install in the 81, but I want to take it to track day in 3 weeks. I 
> did not want to stress the engine on the track, so I figured I would check 
> to see if I needed it running for a length of time before letting into it 
> with the new cam.
> 
> TIA
> 
> Cory Langford
> '86 Roc turbo, 
> '78 Roc turbo - RIP,
> '81S Roc,
> '65 Ghia Coupe,
> 95 Eurovan, etc, etc... :) 
> 
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