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Lifter preload ????

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Old Apr 11, 2005 | 03:12 PM
  #1  
Monks's Avatar
Monks
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Drifting
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Joined: Dec 1999
Posts: 1,315
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From: Central Florida
Default Lifter preload ????

I have stock deck (.012 out of the hole w/Diamond pistons),
LS6 heads that are not milled, Jesel SS rockers. When I checked
preload with a dial indicator, the preload was between .060 and
.085. I am using new Comp 850's. The tech at Comp said the
max preload should be .080-090.....so I called to order a set of
.025 shorter pushrods. The guys at Thunder told me to leave it
alone and they run that preload all the time. Anyone run that
much preload on their Comp 850's????
Thanks!
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Old Apr 11, 2005 | 10:20 PM
  #2  
RoadRebel's Avatar
RoadRebel
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Joined: Mar 2003
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From: Macomb MI
Default

Its absolutlely fine..

Besides..your max of .085" is within there recommended tolerance.
Also, was the measurement done cold? subrtact about .018" if it was done cold.

Phil
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Old Apr 12, 2005 | 09:50 AM
  #3  
Monks's Avatar
Monks
Thread Starter
Drifting
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Joined: Dec 1999
Posts: 1,315
Likes: 27
From: Central Florida
Default

Originally Posted by RoadRebel
Its absolutlely fine..

Besides..your max of .085" is within there recommended tolerance.
Also, was the measurement done cold? subrtact about .018" if it was done cold.

Phil

I measured them cold with the engine on a stand.
Thanks!
Russ
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