Air compressor stalling

Would be interesting to put an amp meter on the motor leads and see what happens as it approaches 75psi. Is it 75psi every time, or just in that ballpark? Does the motor get hot?

 

It will be drawing excessive amps. Will probably let all the magic smoke out eventually. Odds are really good some of the windings are open and it’s only running at 50% of its power out put.
Best deal I found on a replacement for the one at the race shop was on Amazon. Wasn’t exact but a workable solution for the 30 year old IR motor.

 

Well, I ordered the valves and switches as they are less than a motor. If it turns out to be the motor, then I will essentially have a new (underpowered) compressor. Will check motor when I get a chance. Thx for all responses.

 

I've changed the oil as well as the check valve.

Filled up tank, and on the way up, right around 80-90psi, it slowed down like it was gonna do the same but instead of stalling it fought through it and within a few seconds was chooching at normal speed.

When I drew down the air enough for it to kick on, same thing. It struggled for a few seconds (<10), then filled up again.

I bought a new pressure switch, but not sure I'm gonna install it until it cycles a few times.

Motor never got hot, btw.

 

Tightened belt, seemed to fix the bogging down.

 

Replacing it with this is the only logical solution.

https://www.usaircompressor.com/pro...xNlUAUv9qtsbTMgPsyDR4BmL5XjU5hixoCt5EQAvD_BwE

 

Holy crap! 250KW energy use! The little disc in the power meter will fly out when that thing starts!

The power company will want special construction costs covered to add that to the neighborhood!

 

And it’s only $80,000.

 

72K, but 80k++, when you add in a transformer, breaker, wiring, and competent labor.

 

Damn, that thing has all the volts.