Battery Wiring Maintenance

[Mainsail]

I finally remembered to do this when it was daylight so I went out and measured everything and drew a picture.

A couple questions:

What gauge is the factory cable?
What gauge is recommended?

Cables are marked with 12O39293 WDD for the red, and 12O39267 WBQ for the black

 

[antennaclimber]

Factory cables are:
Large Red #4
Large Black #2
Small Black #10

 

[frank8003]

Clean BOTH ENDS of any battery/alternator connection and make it all like when She was new.

I did, Yeah, I did work on many needed powerplant "golf carts" with all those connections and batteries.
Finally found the CDC stuff which resolved many issues. Really good stuff, not expensive

CRC 3175 Battery Terminal Protector, 7.5 oz Aerosol Can, Dark Red: Multipurpose Cleaners: Amazon.com: Tools & Home Improvement

CRC 3175 Battery Terminal Protector, 7.5 oz Aerosol Can, Dark Red: Multipurpose Cleaners: Amazon.com: Tools & Home Improvement

www.amazon.com

https://www.oreillyauto.com/detail/c/crc-industries/battery---accessories/battery-accessories--universal-/battery-chemicals/8d0625b693a9/crc-industries-7-5-ounce-terminal-protector/crc0/05046?pos=1

I did my Deuce One time and after never had any electical problems, Golly, one can weld with those batteries.
I also made facilities to firmly bolt down my batteries and it was all worth it.
If you wanna have real fun just the put the Deuce main ground connection back to NEW condition.
That one is UNDER the Deuce generator, go on, have fun with your truck, and put every connection back to new condition. I used new star washers even.

 

[Mainsail]

Factory cables are:
Large Red #4
Large Black #2
Small Black #10

Any idea of the lug size on the bus bar?

 

[antennaclimber]

I think they have a 5/16" hole .

It would be best to measure the one on your truck to ensure that you get the proper size lug.

 

[Mainsail]

I think they have a 5/16" hole .

It would be best to measure the one on your truck to ensure that you get the proper size lug.

It measures 11/16ths so 3/8ths will do.

 

[antennaclimber]

I removed the engine out of my M1010 for a rebuild, when I removed the starter, I noticed the high current wire connection on the starter looked odd.
After removing the B+ wire from the starter, it appeared that at one time this connection became extremely hot.

Another example that high current connections need to be kept in perfect condition, one little flaw will lead to issues like this that will eventually fail.

 

[antennaclimber]

Once again it's that time of year to inspect your battery connections. It's no fun fixing them in the rain, snow and wind when it's cold and dark.

Check them on all your vehicles, not just the MV's. Check the battery connections on all of your generators, golf carts, race cars, Chick Magnets etc.