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Old June 9th 06, 12:44 AM posted to rec.autos.makers.vw.aircooled
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Default 1974 SB - Replacing manual fuel pump with an electric (fuel delivery problem)

Can you go into a little more detail about the "hot coil"?


"Joey Tribiani" > wrote in message
newsa2ig.86295$IZ2.32888@dukeread07...
>
> " > Yes, it's possible for the rod to stop pumping.
>> The rod is a tight fit in the bakelite "spacer" block.
>> Once in a while, the bakelite swells with age and the
>> rod gets real tight, Then, when the engine heats up,
>> the rod sticks.....no pump.
>>
>> Vapor lock is a rarity in my experience, but possible.
>>
>> Oil should be hot. At freeway speed on a summer day
>> it can get to 235F (not an absolute).
>>
>> Check that all the engine tin is in place and the foam
>> seal doing its job. Check that the thermostat opens
>> and the flaps open fully.
>>
>> You've checked the fuel flow; concentrate on the pump/rod.
>>
>> Jim

>
> Also take Jim's earlier advise (i *think*) and check the carb bowl when
> you have these problems...that will also help to confirm or eliminate the
> sticking pump rod...the hot coil should be considered suspect IMHO....
>



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