79 Gordon smith starts fine then shuts off

by al
(corpus christi tx)

compressor starts fine and runs for about 20 to 30 seconds then shuts off can restart and same thing happens


79 Gordon smith tow behind 160 cfm compressor. has 460 ford engine. I have overhauled the engine replace with new distributor, spark plugs, wires, distributor, coil, ignition switch, circuit breaker, fuel pump, starter, coolant temp sensor switch, completely removed and cleaned fuel tank , new fuel line, cleaned and replaced unloader seals. has fire, fuel, timing is correct. you name it I've replaced it. cant figure this out. Any help is appreciated

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Aug 27, 2016
Response
by: Al

Ok, thanks for taking the time to respond. I check the unloaded again.

Aug 27, 2016
shutdown
by: Doug in s.d.ca

Well, then I'd be looking at the unloader system.

Depending on the model either all at once or sequentially, the valves on the compressor side are supposed to be held open.

So I'd guess during the rebuilt you either missed or wrongly installed those parts...or the signal to operate them isn't being generated by the pressure sensing system.

Aug 26, 2016
Response to question
by: Al

Yes it had good pressure. And it lug down when it shuts off.

Aug 25, 2016
79 Gordon smith
by: Al

Yes it's builds pressure really good. Seems like it lugs down shuts off. As stated I can restart but shuts down again

Aug 23, 2016
79 Gordon Smith
by: Doug in s.d.ca

Does it build any pressure?

Does it die as if switched off, or lug down?

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