I was told one of the most important reasons for fixing a pump like that is
because gas if leaking out the weep hole can also be getting into the crankcase
and gas in the oil is BAD for the engine parts. So Nissan sells a rebuild kit
with diaphram a rubber seal but only the early pumps are easily rebuildable.
See Rallye site for more info.
Linda
-----Original Message-----
From: Joe Russo <jrusso07@rochester.rr.com>
To: datsun-roadsters@autox.team.net
Sent: Tue, Sep 8, 2009 8:21 am
Subject: [Roadsters] Fuel Pump Question
I put a NOS fuel pump on my U20. After about 6 months, fuel started coming
out
of the weep holes on lower part of the pump body. I suspect these holes are
there to exhaust the air from the diaphragm. SO I pulled the pump and the
diaphragm was decomposing (old rubber) but I could see no holes . I replaced
the pump with a spare I had taken from a running engine. It too has fuel
coming
from these holes...another bad diaphragm?
Could it be any thing else - like a clog in a carb banjo bolt filter? Car
starts easily and runs strong - as long as you don't mind the smell of gas
(not
to mention, going up in flames!) Carbs are new beauties from Keith!
Thx
Joe
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