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Valve guide knurling tool ?

To: Shop-Talk list <shop-talk@autox.team.net>,
Subject: Valve guide knurling tool ?
From: Randall Young <ryoung@NAVCOMTECH.COM>
Date: Fri, 31 Aug 2001 11:53:06 -0700
Would someone please describe the business end of a valve guide knurling
tool to me ?  I assume it's basically a "thread-flowing" tap ?  But how much
bigger than the guide ?
Anyone ever make one by heating a Grade 8 bolt, smashing it somewhat with a
BFH, then hardening and tempering it ?

My TR3A 'gave it's all' going to/from Breck, I don't want to drive it in
it's present state.  I'm looking for a way to get it back on the road this
weekend, so I can drive it while I rebuild the spare engine and trans,
hopefully in time for Triumphest.

Randall - 'boy machinist'
59 TR3A daily driver

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