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Valve guide tolerance?

Moderators: Curt!, Pa

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ncmc47

Posts: 18

Joined: Sun Mar 26, 2006 3:50 pm

Location: Valentine, NE 69201

Post Wed Sep 01, 2010 12:56 pm

Valve guide tolerance?

What is the proper interference fit between guides and the head? All I could find in the manual is "tight." Surely someone has figured out a more scientific method than that.
TIA
Steve
It's a hard life if you don"t weaken.
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wilko

Posts: 159

Joined: Fri Jan 15, 2010 7:36 pm

Post Wed Sep 01, 2010 6:29 pm

Re: Valve guide tolerance?

Cast iron guides in cast iron on any application about 1 / 1/2 to 2 thou interference fit.
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panic

Post Fri Sep 03, 2010 7:45 am

Re: Valve guide tolerance?

Sounds about right, and they should be re-sized after insertion since some crushing is normal.

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