[alfa] Spica Fuel Pressure Problem - Longish

["Mitch" <wolberg5@xxxxxxx>]

I just finished putting a newly recored radiator in my 69 Berlina this weekend
and it performed flawlessly yesterday. It was in the 80's and after about 15
minutes of driving at 65-75mph I pulled off the highway and got bogged down in
stop and go traffic. The temperature never budged off 175. However after a few
minutes the fuel pressure light blinked and in the 5 minutes more before I
could pull off the street and shut off the engine, it went on full time. The
engine never lost power or idled poorly. I let it cool off for about 5 minutes
and then was able to start up and finish my drive home. In the last several
thousand miles I've replaced the fuel pump (new) and had the gas tank cleaned.
I've got less than 500 miles on both filters and new hoses from the tank.

It seems to me that it has to be heat related as the problem didn't appear
until after I pulled off the highway and went away after it had time to cool
off. The hose from the fuel tank to the pump runs rather close to the exhaust
pipe and rear muffler but it does dip below the pipe by at least several
inches. The other place I'm concerned about is the engine compartment but the
hoses are routed correctly. A third possibility would be a voltage drop but I
didn't notice anything unusal there. The ammeter stayed a little above 0. Any
ideas on what to look for ro diagnose this problem?

Mitch Wolberg,
Denver, CO
69 Berlina
69 Spider Jr.
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