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Valve Clearances Question

Discussion in 'XJ Technical Chat' started by Gamuru, Jul 12, 2008.

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  1. MN-Maxims

    MN-Maxims St. Paul Minnesota

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    Lets say you are right on the tight side (.016mm) of what the book says. So when you change shims to the next number down. Example 310 to 305 if that puts you on the looser side (.021mm) of the spec and your valve train makes noise thats ok?
     
    MN-Maxims, Jul 21, 2008
    #21
  2. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    Not really. But if you're within the spec range (and .016mm IS within the spec range) then you should not be changing that shim! Within spec means within acceptable clearance, and "acceptable clearances" within engineering-speak actually is a conservative specification, if you go down to .015mm, for instance, it's not an "end-of-the-world-your-engine-will-grenade-itself-tomorrow" kinda thing.
     
    chacal, Jul 21, 2008
    #22
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