Experts,
Recently my rear carb had an overflow problem. (fuel came out
of the overflow pipe) After cleaning it all (chamber, needle
and seat) the problem was solved.
What worried me was the following: The PO probably replaced
the "original" overflow pipes with short rubber hoses. (approx.
40 cm) The result was that fuel leaked on the inside of the
engine compartement. (This worried me because of the possible
risk of fire)
Next to the disadvantage of the possible risk of fire the ad-
vantage was that I smelled the fuel, stopped and found the
problem. I wonder whether I'd found the problem so quickly when
the overflow pipes were long enough and the fuel leaked on road.
(while driving)
At first I thought that the rubber overflow hoses were original
but according to my catalog there should be metal pipes with a
small piece of rubber between the lid and pipe. (In order to
reduce the risk of fire these long metal pipes would make sense)
Q1: What should be the length of the overflow pipes attached
to the lid of the fuel chamber? (I expect them to be that
long that the fuel will never touch any "hot" part of the
car)
Q2: What's the "usual" way of detecting an overflow problem when
these longer metal pipes are fitted? (I expect a rough
running engine because the fuel level in the carb would be
too high)
Specs: 1963 MGB, 2 SU HS4 carbs.
Greetings and looking forward to your responses,
Menno Meijer
The Netherlands
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