My 3A is my first experience of any depth with SU carbs. I have been having
idle problems although the car runs fine at speed. I have done the usual,
but when I pulled out the jets to replace the seals I found perished O rings
and the replacements provided are cork. What is the conventional wisdom here.
When I shut off the car I would get a small drip of fuel that ran down the
jet between the "keeper" and the jet, and so I assume that when running if
the upper seal was as bad the fuel would also feed into the carb in addition
to
what was being fed by the needle and jet.
Also, I get play at the throttle shaft on both but when I use the old carb
cleaner trick I get no change. I am assuming that any leak at the shaft is
not significant enough to bother with. From what I can see, and I have not
had
the shafts out, the SUs do not have the rubber shaft seal that is used in
the Z-S.
David Lylis
69 TR6 CC26160L
60 TR3A TS74461LO
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