[TR] TR2/3 rad cap pressure

[wbeech at flash.net]

Angelo,
I am running a standard 4lb cap from NAPA.  Have not had any serious
problems except that if I put it under pressures like accelerating up hill
at freeway speeds it will climb about 10 degrees beyond normal and some
coolant will release from the cap.  I am not sure what the cold level is for
coolant so I may simply be overfilled a bit.

Most of my driving is at higher elevations, 5,000-8,000 feet so I am not
sure if the lower boiling point would call for a heavier or lighter cap.
Perhaps there is an expert out there that could help to explain the
differences.

Bill

Bill Beecher
'58 TR-3A TS30766L  "Tarbaby"
www.triumphowners.com/1566
"A Triumph is man's best friend, it always comes when it is called...of
course, some times it is difficult to make it go"

 

-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of Angelo Graham
Sent: Thursday, July 08, 2010 10:09 AM
To: triumphs at autox.team.net
Subject: [TR] TR2/3 rad cap pressure

Hello List:
Seems to have been quiet on the list the last couple of days. Wondering
about rad cap pressures for the 2/3 engines. My '2 came with a 7lb. cap. 
I thought they were supposed to run a lower pressure cap. Any thoughts? 
Am I OK with the 7lb. cap? I have a couple of good long reach 7 lb. 
caps, so wondering if I have to go with something else.
Thanks in advance,
Angelo Graham

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