[Roadsters] 44PHH2 Type Q fuel leak

[ljordan704 at netscape.net]

 I had some fuel flow issues recently and wondered about the gas also, even
though my car is driven once a week.
Linda








-----Original Message-----
From: RWM <RWM at RWMann.com>
To: 'Datsun Roadster List' <datsun-roadsters at autox.team.net>
Sent: Tue, Jul 6, 2010 9:15 am
Subject: [Roadsters] 44PHH2 Type Q fuel leak


 From out of the blue I am experiencing fuel system issues.  Car had not been
run since last Fall, first wouldn't start (lack of fuel, traced as noted
below), ran well for a couple of laps around town, then picked up a stumble
and a carb/fuel leak from one of the old style 44PHH2 Type Q Mikunis.

Remaining issue is a cylinder out/slow throttle response while running,
accompanied by a significant raw fuel leak out of the #4 (rear-most rear) carb
throat after shutdown and most likely the cause of the cylinder-out while
running condition.  Stuck float valve or sunk float, perhaps?  (For insurance,
I run one in-line filter before the fuel pump, two in-line filters after the
pump, plus the banjo fitting mesh screen, so I wonder what it could be that
got by all that filtration.)

Also, is anyone seeing the "new gas" (high alcohol content) causing rapid
deterioration in fuel system gaskets?   Had to rebuild the fuel pump due to a
piece of debris (looked like solid varnish) stuck in a body valve.  In the
process, went from no fuel delivery to the fuel leak noted above.

TIA for suggestions/recommendations.

- Bob Mann, '68 2000 Solex ________________________________________
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