[Fot] Bronze valve guides?

RACER BUD budscars at comcast.net
Tue Feb 17 15:22:49 MST 2009


Hi jim..you might contact Carl Stirtz at Stirtz machine in Oakland...He has 
been doing this stuff for about 40 years..i think you've met Carl.(he's got 
the 2 formula juniors that i think you've seen at the track)...and he's very 
reasonable...he does my stuff..i just spoke to him, and he said that it 
makes for tighter clearance in a race engine...he put them in mine....they 
don't last any longer..he used to put them in street engines when bad gas 
1st came out, but he doesn't anymore...he'd be glad to talk to you..Carl 
Stirtz..510 536 2772..oakland ca.
Racer Bud
----- Original Message ----- 
From: "jim hearn" <jimhearn1 at comcast.net>
To: "'Friends of Triumph'" <fot at autox.team.net>
Sent: Tuesday, February 17, 2009 1:54 PM
Subject: [Fot] Bronze valve guides?


>I thought I had seen on some posts that bronze valve guides were the way to
> go with a TR6 so now that I need to do a complete valve job, I bought 
> bronze
> guides to do it.  When I took it to the machine shop (that has a good rep
> for doing British stuff), I was told that they had quit putting in bronze
> guides due to the extra heat in the combustion chamber caused by the new
> fuel with no lead.  They said that early on when they were using bronze
> guides with the new fuel, due to dissimilar expansion rates for the
> different metals (head and guides), guides were loosing up and falling 
> out.
> Has anyone heard this, experienced this, or have any information on this.
> Is anyone running bronze guides successfully?  Mine is a stock motor but 
> if
> this is true, there doesn't seem to be enough good points for the bronze 
> to
> risk the calamity.  Any thoughts?  Jim
>
> [demime 1.01d removed an attachment of type application/ms-tnef which had 
> a name of winmail.dat]
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