My Ford 821 Backhoe does not have a Alternator, Should it?

   / My Ford 821 Backhoe does not have a Alternator, Should it? #21  
Ha, that's a Toyota power steering pump!

Your easiest way to get a 12V alternator is find a Delco-Remy "Delcotron" alternator out of a mid-70's through 80's GM car or truck. They used these in all sorts of machinery and tractors and all kinds of things.
These are 63 amp, use a 2-wire plug in the side of the case with the terminals side by side like this -- & has an internal voltage regulator. You can wire them up to run on anything by simply connecting the "#1" wire in the two-wire plug to the "B" (battery) terminal. Most of them came already wired like that.
8231d1262490091-delcotron-10si-alternator-thread-case-id-rear-view.jpg

Brackets can be fabbed up using the brackets from the donor vehicle and whatever pieces of flat stock, nuts, bolts, washers, etc you have on hand.
I've done A LOT of these conversions on all kinds of stuff.
You can source one of these in nearly any junkyard for about $20 with all the brackets and cut off the wire with the plug.


The older Delco alternators had the terminals like this = and used an external regulator, this is not the one wanted here.
 
   / My Ford 821 Backhoe does not have a Alternator, Should it? #22  
you would want to wire #2 tot he bat terminal, and the 1 wire jobs are usually wired that way. wiring 31 to the bat terminal may keep the field energized, thus causing up to a 3a draw all the time. swiched power to the #1 terminal is best.. in fact.. switched, isolated power is the best... this holds true for the common 10/12 SI alternators. the Cs130 and later are slightly different.

soundguy
 
   / My Ford 821 Backhoe does not have a Alternator, Should it?
  • Thread Starter
#23  
Thanks Guys, I looked at autozone and found a new one for $29.99 and That is alot cheaper than the kit I linked to earlier in this post, But I really enjoy working on this old stuff, they used the KISS method, I go from electronic controls to points and it is relaxing, but Once I start my restore thread I will keep it updated with pics and stuff of that nature

Forgot to ask anyone know the oil filter number for the engine and a better airfilter other than the tiny one on the carb
 
   / My Ford 821 Backhoe does not have a Alternator, Should it? #24  
you will need to make your own brackets and wire harness... etc..

soundguy
 
   / My Ford 821 Backhoe does not have a Alternator, Should it?
  • Thread Starter
#25  
Yeah I got plenty of Flatbar and angle, and a Plasma cutter and mig welder, so Im good on that end, Im gathering up my parts and trying to find the engine oil and transmission oil and hydraulic oil specs right now, there not much info on this tractor, I got a manual coming so that should help
 
   / My Ford 821 Backhoe does not have a Alternator, Should it? #26  
there is a ton of info availoable on the old fords.. more I suspect than just about any other model of tractor out there :)

oil for the hyds, rear and tranny can be a UTF fluid meeting the M2C134 spec. ie.. most generic utf fluids.

for the engine.. I'd go with a 15w40 C rated oil in all but desert or arctic climates.

soundguy
 

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