Possibly something heat related? When was the last time the coolant was
replaced and the system flushed?
Almost sounds like you're leaning out the mix (that's why the choke helps)
fuel might be getting too hot. Are the fuel lines in the original locations
(supposedly got pretty warm there)? I'd consider some sort of insulation
over the lines from the fuel pump to the carbs (have you thought about the
possibility that you might be close boiling the fuel in the bowls as it
picks up radiated heat from the engine and the manifold).
Dave Korzun
'69 GT6+
-----Original Message-----
From: jaltman@altlaw.com <jaltman@altlaw.com>
To: tedtsimx@q1.net <tedtsimx@q1.net>; 'Triumph List'
<triumphs@autox.team.net>
Date: Friday, October 02, 1998 4:40 PM
Subject: Well beyond baffled
>
>I thought Ted had hit on something when he suggested checking the
>connections at the solenoid, as that is where all the electricity passes
by.
>They were pretty cruddy, I cleaned it all up, but to no avail. Let me
>summarize. Engine is perky and runs fine. Spend 15 minutes on the
freeway,
>get off and it dies. Let it sit for 5 minutes and its fine (well much
>better). I have:
>
>replaced coil
>replaced condenser
>replaced points
>replaced dizzy cap
>replaced rotor
>replaced plug wires, coil wire
>replaced alternator
>plugs are about 6 months old good color, look fine.
>cleaned and checked advance weights and springs
>cleaned and checked vacuum advance (retard is disconnected)
>cleaned and checked all wires in dizzy, low voltage coil, alternator
>cleaned and checked wires at solenoid
>checked timing and dwell
>balanced carbs
>
>When starting cold (no choke) it idles around 1300 and as it warms it
drifts
>down to about 900. There is an occasional miss and cough from the carbs.
It
>is basically fine till 15 minutes on the freeway or about an hour of city
>traffic. Then I can't maintain an idle. Usually, I can put it high idle
>with the choke and survive. I degreased the engine 3-4 weeks ago and did
>NOT have the problem for about 7 days when it returned. I am running out of
>things to check/replace.
>
>Jim Altman jaltman@altlaw.com Illigitimi non Carborundum
>http://www.altlaw.com/metro/jaltman.html 69-TR6#CC28754L W4UCK
>
>
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