Thanks for the info Steve,
I'm going to check further into the Gulp Valve and Distributor
at the weekend, but now you've got me wondering about that
"air pump hose restrictor" - my hose has also been replaced
with heater hose by the PO. I don't really understand how this
really works, so don't know if that could be causing my problem.
Out of interest does your distributor have an 'optical sensor'
setup. I don't see the same arrangement as this in any of the
catalogues?
Anyway thanks again for the info.
Alan B.'
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From: SteveB5815
To: bidgood.alan
Subject: Re: Still won't idle
Date: Wednesday, October 15, 1997 9:05PM
Hi, this is my first posting so I'm not sure that this will wind up in
the
correct place but here it goes. I've been following the poor idle thread
for
the past day or so. My '79 B is experiencing the same poor idle. I
attributed
to the 8yr old gas and it will soon be replaced. The engine seems to
smooth
out at higher rpms. I've seen a couple of suggestions that make good
sense
especially when I consider how my B was maintained by the PPO (the last
guy
didn't do anything but strip the paint and disassemble some stuff).
#1) The anti-scatter shield is missing from inside the distributor. I'm
sure
this doesn't help the situation (like the bad gas). I saw a suggestion
about
dipping the back of the pickup (I think) in a rubber coating to insulate
it
but the shield should probably take care of that situation.
#2) The gulp valve may be even more of the culprit. Not necessarily the
valve
itself but the hose leading to it. On my B someone replaced the hose
from the
air pump to the gulp valve with a piece of heater hose. In doing so I'm
sure
they chucked the "air pump hose restrictor" with the old hose. I will
know
for sure in a few hours when I get home but if this is the case it must
cause
a nice vacuum leak when the valve is open. I saw this part in the Haynes
manual and in the SICP parts catalog but it didn't make sense until now.
Thanks for the information and giving me a place to check.
Steve Bettencourt
'79 MGB
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