[TR] Sticking valves?

[Peter Ryner]

Tony,
I've used bronze valve guides in my TR and my MGB.  The first time I had 
them installed by a local shop.  They stuck immediately upon starting.  I 
ended up sending the head to TRF for a rebuild and everything has been 
working fine for several years.  Not sure what the hone the guides to, but 
they know what they are doing.
As for the MG, I again used a local shop to put in new seats and bronze 
valve guides.  When I got the head back I immediately checked how the valves 
fit into the guides.  Several were binding up while cold.  I did some 
research on line and quickly became convinced that bronze was not the way to 
go.  It has a very different expansion coefficient than the head and several 
authors stated that they would never really work right.  I opted to change 
out the guides with standard iron and am very pleased with the new fit.

As far as your problem, it sounds like you have more of a timing or fuel 
problem than valves sticking.  When my valves stuck they didn't unstick just 
by adjusting the pedal.  I'd check the static and vacuum advance to see if 
you are advancing too much at full throttle, especially with the added load 
of the hill.  I would think that sticking valves would be a more consistent 
problem not caused by the road condition whereas timing, fuel and other 
issues more affected by road conditions and throttle position would be more 
suspect.
Pete
----- Original Message ----- 
From: "Alan Myers" <amfoto1 at aol.com>
To: <triumphs at autox.team.net>
Sent: Saturday, September 19, 2009 2:58 PM
Subject: Re: [TR] Sticking valves?