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Old 05-27-2020, 08:08 AM   #21
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Originally Posted by KodaTheBus View Post
I cleaned off the contacts, charged up the batteries, and got it started. probably will have to replace them at a point, but for now it will allow me to drive it to get titled and registered. Thanks everyone!
Good to hear. Coca cola works wonders on cleaning battery terminals off fwiw. When you can get 2 litres for 99 cents I typically buy a bunch of them for the shop.

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Old 05-27-2020, 09:36 AM   #22
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Originally Posted by Booyah45828 View Post
Good to hear. Coca cola works wonders on cleaning battery terminals off fwiw. When you can get 2 litres for 99 cents I typically buy a bunch of them for the shop.
I find that the corn syrup can affect a connections ability to conduct.

Get Diet Coke.

Alternatively a box of baking soda mixed with water can make a cleaner cleaner.
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Old 05-27-2020, 09:41 AM   #23
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I use a wire wheel on a drill to clean em. Takes seconds.
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Old 05-27-2020, 10:27 AM   #24
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I find that the corn syrup can affect a connections ability to conduct.

Get Diet Coke.

Alternatively a box of baking soda mixed with water can make a cleaner cleaner.
Never had that issue, but I liberally wash it off with water afterwards because I don't want to attract critters.
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Old 05-27-2020, 10:40 AM   #25
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Originally Posted by Booyah45828 View Post
Pretty much. It's also privy to some ag and construction equipment.

Very little on road stuff will run 24v.

And connecting a 12v vehicle to 24v will let the magic smoke out of a lot of devices.
Agreed -- only you should've said it like this:

Very little on road stuff will run 24v.!!!
Cause the way it was suggested by others could have cost somebody a lot of money with damaged equipment...

All yer military vehicles went to 24v as part of NATO compatibility in early 80's. Also, all army acft are 24v and yes I have jumpstarted my Huey with a CUCV
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Old 05-27-2020, 11:25 AM   #26
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Originally Posted by Danjo View Post
I find that the corn syrup can affect a connections ability to conduct.

Get Diet Coke.

Alternatively a box of baking soda mixed with water can make a cleaner cleaner.
Mexican coke uses real sugar.
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Old 05-27-2020, 12:06 PM   #27
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I'm with CB on this one. Nothing better than a wire brush. And you only have to buy it once. When you are done, absolutely no question if you have a good connection.
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Old 06-03-2020, 03:34 PM   #28
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Need to load test the batteries. They could show good voltage but not handle any load.
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Old 06-03-2020, 04:36 PM   #29
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Something to check is the emergency exit door starter disable switches. Each should have two, one to disable starting with the lock engaged and one to disable starting with the latch not engaged.
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Old 06-03-2020, 09:32 PM   #30
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Remember low or week batteries will cost you a starter later down the road. When in doubt but the biggest batteries you can.
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Old 06-04-2020, 01:39 AM   #31
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Originally Posted by CHEESE_WAGON View Post
Even some 6.2 Detroit engines were set up for 24V start. (CUCV military applications mostly). This came up in the process of identifying the correct starter for the other P20 motorhome I have, as it was a 6.2 Detroit.

Not too far out of the realm of possibility for a Freightshaker FS65 to have a 24V start setup.

It looks to me that the special connections he has on the cables will not allow him to hook up the + and - together to achieve 24v even if he turns one battery around
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Old 06-04-2020, 03:28 PM   #32
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It looks to me that the special connections he has on the cables will not allow him to hook up the + and - together to achieve 24v even if he turns one battery around
That’s a good thing!

OP: once you’ve figured it out, wrap the positive cables with a hunk of red electrical tape
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Old 06-04-2020, 09:54 PM   #33
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Originally Posted by Booyah45828 View Post
connecting a 12v vehicle to 24v will let the magic smoke out of a lot of devices.
HAHAHAHA....thanks for the giggle
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Old 06-05-2020, 07:13 AM   #34
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Originally Posted by EastCoastCB View Post
Pretty sure if its a thomas school bus its 12v. Isn't 24v just coaches and military stuff?
yes if it was a 24 volt the cables (not wires) would go to a series parallel switch and even 1 ground would hook to it. it it always in the battery box and is quite large. older trucks were 24 volt start but everything else on them was 12 volt (only the starter used 24 volts)
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