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Loner 10-14-2018 10:10 PM

Engine Stalls
 
When I turn loose the battery xfer switch to crank the engine stalls.HELP

Restorium 10-15-2018 07:35 AM

You use the battery transfer when your engine battery doesn't have enough juice to crank it over. If your engine battery is bad enough your engine will stall when you turn off the transfer. Besides a bad engine battery it could be a bad charging system or a short in the wiring. The fix for this depends on why you were using the transfer switch in the first place.

Loner 10-15-2018 08:15 AM

Engine Stalls
 
Quote:

Originally Posted by Restorium (Post 26604)
You use the battery transfer when your engine battery doesn't have enough juice to crank it over. If your engine battery is bad enough your engine will stall when you turn off the transfer. Besides a bad engine battery it could be a bad charging system or a short in the wiring. The fix for this depends on why you were using the transfer switch in the first place.

I recently bought this baby to restore. The use of xfer switch was explained to me by previous owner as the proper way to crank. I will test batteries today. thank you so much

Restorium 10-15-2018 09:06 AM

So we can get on the same page here;
https://www.youtube.com/watch?v=Qnl2P8wLWik

Loner 10-15-2018 08:51 PM

I was informed that if your engine is running and you disconnect the positive lead from the battery and the engine cuts off you have a bad alternator, if it continues to run the battery is bad. Any comments pro or con?? I tried this and the engine stalled should i replace the alternator or are the other alternator test i could do?? Thanks again

Restorium 10-16-2018 06:33 AM

Quote:

Originally Posted by Loner (Post 26617)
I was informed that if your engine is running and you disconnect the positive lead from the battery and the engine cuts off you have a bad alternator, if it continues to run the battery is bad. Any comments pro or con?? I tried this and the engine stalled should i replace the alternator or are the other alternator test i could do?? Thanks again

That test works most of the time. I would take the alternator to the auto parts store and have it tested.

THenne1713 10-21-2018 09:50 PM

Modern vehicles w/ computer, injectors and COPS must have proper battery voltage to run, and many alternators cannot work without battery; have even read that disconnecting battery can blow a computer? Leave alternator, and take battery to be charged/ tested and/ or replaced; once a good battery is installed, THEN test alternator in place.

Loner 10-22-2018 07:46 AM

Engine Stalls
 
GMoring All thanks so much for your ideas and suggestions. The problem has been solved and fixed. It was the cranking battery. Yes you are right with the proper good battery the engine starts and runs without using the battery boost switch. Thanks again good people.:):):

Restorium 10-22-2018 08:05 AM

GMorning,
You had an old school easy one. Thanks for reporting back. Nice to be able to help someone.:cool:

Big Shasta 10-25-2018 06:14 AM

Quote:

Originally Posted by Loner (Post 26643)
GMoring All thanks so much for your ideas and suggestions. The problem has been solved and fixed. It was the cranking battery. Yes you are right with the proper good battery the engine starts and runs without using the battery boost switch. Thanks again good people.:):):

Still be sure the battery is getting voltage from the alternator. Just put a meter across the battery when the engine is running. You should see ~14V putting a charge back into the battery from the startup. With a bad alternator, the first battery would have given out and if the previous owner was using the emergency switch all the time, the start battery would have went very dead and may now test bad. You could be starting off the new batteries initial charge and have this problem again after several starts.


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