generator to regulator cable check

rapid · Post by **rapid** » Thu Jun 01, 2006 1:55 pm

Am restoring an M38A1, which is in about 500 pieces. Am in the process of checking out parts before going to the trouble of cleaning, treating, etc. Noted that A and B of the gen to reg cable checks good but C does not pass continuity (and that is about the extent of my electric troubleshooting ability!). Called a friend (who knows about as much as I do!) and he said his cable did the same thing. Is this correct? And, if so, why.

Thanks in advance. Rapid.

53 M38A1
42 GPW
82 Corvette Collector Edition 1620

Post by **wesk** » Fri Jun 02, 2006 5:34 am

A&C are paired for the armature to battery load and B is the field. The cable assembly shield provides the ground path. So I would say you have a broken wire between your C pins.

Cacti_Ken · Post by **Cacti_Ken** » Fri Jun 02, 2006 8:13 pm

Wes, is the solid state regulator wired different at the connections. Reason I am asking is, that long cable I have that has the 90 degree end on it only has two wires in it on A & B. I guess the shield provides a connection too.
I had it (the cable) connected up when I checked the output of the regulator for the first test.

This cable which I have connected in the photo has three wires in it. I don't know if it is shielded.
I haven't tested this one yet. But I did ring out the wires in it. It is also a tight fit beings it is so short. I think it is about 22 or 23 inches long. It came with the used generator I bought.
Well for some reason I can't get the photo to appear.

Post by **wesk** » Fri Jun 02, 2006 10:40 pm

OKCM38CDN · Post by **OKCM38CDN** » Sat Jun 03, 2006 6:47 am

Ken, you photo won't appear because you have the

like so and it should work...

hope this helps...

Cacti_Ken · Post by **Cacti_Ken** » Sat Jun 03, 2006 8:52 am

I did what you said Hal, I don't know what is wrong it still won't appear.

Post by **Ryan_Miller** » Sat Jun 03, 2006 9:11 am

Ken,

check to make sure the web address is correct.

Cacti_Ken · Post by **Cacti_Ken** » Sat Jun 03, 2006 2:46 pm

I posted it in my album here.

Richard · Post by **Richard** » Sat Jun 03, 2006 7:22 pm

The M38 has the fat cable with all 3 pins connected: the M38A1 has the thin cable with only 2 pins connected. both work fine.

Cacti_Ken · Post by **Cacti_Ken** » Sun Jun 04, 2006 7:21 pm

Richard, that thin cable I have connected there in the photo has three wiires in it according my ohm meter.

The fatter cable I have has two wires in it. I could get the lock nuts loose in order to see the wires.

Post by **wesk** » Mon Jun 05, 2006 9:21 am

All my thin style cables have all three wires in them also.