>I have a 74 TR6 that seems to have a little trouble when it is asked to sit,
>for example, at a red light and wait for it to turn green. When coming down
>from higher rpms, whether down shifting or coming to a stop, it wants to
>stall. Vacuum leak you may be thinking as I was, checked all the hoses and
>tightened all the hose clamps. That seemed to help a little but not enough. I
>noticed a small sucking noise from around the bypass valve on the front carb
>but could not trace the source, at first I thought it was more money coming
>out of my wallet but my $5 was still there. After the cars warms up it is not
>as bad, but still not like it should be. My wife is getting sick of hearing
>me talk about my car so I hope some of you will listen. Honey, are you still
>awake?
Try listening to the brake servo when the engine is running and the car is
stationery with your foot on the brake pedal. Does it hiss? You may be able
to hear it as you depress the brake pedal, even from inside the car with
the top up (nearly said hood up, but that means something different to you
guys!). Many a brake servo splits it's diaphram, allows air to leak into
the inlet manifold, weakens the mixture, stops the engine!
Take the inlet manifold off and check the gasket - it may be letting air
into the manifold. Same result as above!
Stromberg carbs? Check the piston diaphram, and the oil in the dashpot.
That's all I can think of just now...
Regards,
Richard Smith
RG Smith Automobile Engineering
Alvis & Triumph Specialist
Lucas Injection Centre
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