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Re: valve clearances



Kevin,
       The problem with tight valve clearance is not piston interference  - I 
don't think a few mills is going to make the difference between bent valves 
or not.  But if the clearance goes to zero, your going to burn valves!  So if 
you run on the tight side, check your clearance regularly.

Charlie

> Date: Sun, 12 Jan 2003 13:31:43 -0500
> From: Kevin Trent <trentkc@domain.elided>
> Subject: Re: valve clearances
> 
> I always lean to the tight side for the additional lift, and just set up a 
> 1750 head on a rebuild project with the lash set at .015 intake and .017 
> exhaust.   I have a 2L that is set at .014 and .016.  Perhaps some more 
> knowledgeable digester can provide reasons why this is not a good practice 
> - - the most obvious is the possibility for insufficient piston 
> clearance.  It would seem to me that an important consideration is 
> uniformity across cylinders, but I don't know how many thousandths would 
> make a difference until cylinder "inequality" would affect how the engine 
> runs.
> 
> //KCT, Powell, TN
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