First, a little background since we are talking about carbs:
I have an early 1970 MGB (CA emissions) that has the largish external
float chambers. Small metal tags affixed to the chambers indicate they
are AUD 325AR carbs.
Anyway, I just noticed a small gas leak on the underside of the float
chambers/carbs. There is a small plastic tube which runs from the
float chamber to the jet at the bottom of the carb. This plastic tube
is covered with a tightly-wound metal spring which I assume is to
protect it from engine heat. Somewhere this gadget leaks.
Questions:
1. Judging from the fact that it is a plastic tube close to a heat
source, I would think this would be a common failure point for these
carbs. Has anyone else had this problem?
2. I have no experience working on these carbs. If I remove the jet
but manage to leave the jet locking nut alone, will I screw up the
mixture when I put the new/fixed jet assembly in? My knees get wobbly
when I think of having to balance/tune these carbs...<g>
3. Do I have to replace the entire jet assembly, or can I just
replace the tube somehow?
Thanks for your time!
Michael Lytton
1970 MGB
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