Gavin Walker writes:
>
> Well this doesn't have much LBC content but Scott Paisley's account of his
> TR6 tuning reminds me of my corolla (1978 1166 ohv dual throat). With the
> colour tune in cylinder 1 (cyliner 2 is identical) I notices a lean condition.
> So I tried enriching the mixture no effect. I disassembled, soaked, blew and
> reassembled the carb twice with no effect.
>
> The flame colour is erratic. Most of the time it's pale blue. Frequently I
> get flickers of yellow or no flame at all. The no flame is accompanied by
> a stumble in the engine.
**** I had this exact problem with the Clankster ( my TR2 )! It turned out
to be weak valve springs. They were so weak that the installed height was
the same as the free height. You could open the valves( just a bit! )
with the palm of your hand. New valve springs cured the problem.
My theory is that the weak springs caused a little teensy bit of exhaust
gas to leak back into the into the intake manifold, thus killing the
vacuum.
- Jerry Kaidor
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