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Stripped Threads in Gearbox Case

To: triumphs@autox.team.net
Subject: Stripped Threads in Gearbox Case
From: sanborn@net1plus.com
Date: Wed, 24 Feb 1999 10:40:27 -0500

Listers,

Need some Help!!

I noticed when I took apart my gearbox that the bolts were 
very tight... I now think maybe too tight.

While in final reassemnle of the box one of the threads for 
the input shaft front cover stripped while torqing to 15 
ft/lbs.   I have no experience with cutting threads in 
aluminium, but am very familiar with tap & die use.  I 
picked up a 5/16th Helicoil kit this morning thinking that 
is the best path... or I could try to drill out to 3/8th 
and cut new threads.... but that means drilling out the 
cover flange as well.

Anyone that can share some experience and/or knowledge 
would be appreciated



Brian Sanborn
62 TR4  CT16260L  Groton,MA
sanborn@net1plus.com

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