After rebuilding the cylinder head and carbs on my 1961 MGA (with 1800
MGB 3 main engine and original MGA carbs), the engine fired right up . .
. to 3000 RPM! It appears that the rear carb is causing the high
revs. If I block about 80% of the rear carb's air inlet, it calms down
to around 1500 . The front carb is behaving appropriately. I assume I
have issues with the jet because the adjusting nut will not tighten.
Here are my questions for the group's wisdom. What is/are the likely
cause(s)? Can I fix the carb without removing it (man is space tight
around there -- but I hate dealing with the carb stud nuts, vacuum
tube, spring holder, etc.)? Can I just remove the rear carb? Any
helpful techniques or procedures to deal with these issues? Please note
that when I use the word "can", I really mean "should I do it as part of
"best practices".
Thanks.
--
Robert Guinness
1961 MGA
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