Cam thrust issue...

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Apr 13, 2008 | 04:36 PM

v8xploder

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From: Harrisburg, SD

Cam thrust issue...

I just installed a comp solid roller cam in my 460. I was checking the thrust clearance with a dial gauge. I pushed the cam back as far as i could and zero'd my gauge and moved the cam as far foreward as i could. It moved .023, this is without the timing gear installed. Is this too far? I have a book that says under .005 is max.

Apr 16, 2008 | 08:14 AM

385seriesHemi

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Joined: Jan 2006

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From: Malvern, Ohio

Yeah id say thats too far. Thats over 4 times as much as the spec allows.

Apr 16, 2008 | 11:02 AM

fasthauler

Fleet Mechanic

Joined: Mar 2004

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From: Hesperia, CA

Check the thrust plate for wear. Turn the thrust plate over and try it again. I have had the same problem before with aftermarket cams.

Apr 18, 2008 | 07:59 PM

v8xploder

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From: Harrisburg, SD

I did not have the timing gear installed, would that make any difference? I think the thrust plate only goes on one way, dummy proof....

Apr 18, 2008 | 09:41 PM

brh1969

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Joined: Mar 2008

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Doesnt Comp recommend a roller thrust plate with their roller cam?I dont remember for sure.

Apr 18, 2008 | 10:13 PM

v8xploder

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From: Harrisburg, SD

I figured out my problem. I had only tapped that cam gear on with a soft hammer. Once I snugged down the bolt she came tight to the cam, now a perfect .005 whoops