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Caterpillar Alternator Upgrade


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#1 wvbuzzmaster OFFLINE  

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Posted May 05, 2011 - 05:32 PM

Figured I would post some pictures of the 37 Amp Delco 3 wire alternator I added to the Caterpillar right before Cochranton Plow Day. I basically bolted another pulley on the outside of the main drive pulley using 2 of the 4 bolts that held that inner pulley on. Then I bolted the alternator to the frame and foot rest. Works great but I am going to redo it this weekend to make it correct. I had another pulley machined today (picking it up tomorrow) so that it would be centered and balanced. Currently have the tight-loose belt thing going right now. Here are the pics of the current setup.

CatAlt2.jpg

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#2 MH81 ONLINE  

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Posted May 05, 2011 - 06:12 PM

I didn't notice it slipping, were you having problems staying charged?

#3 wvbuzzmaster OFFLINE  

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Posted May 05, 2011 - 06:54 PM

Nope, no slip at all, the pulley was close enough to be happy, but not dead on enough to eliminate vibrations lol. That is why I had another pulley machined. And then I am going to fix the wiring on the tractor to make it start and work every time, tired of it being a pita lol. The only belt that slipped was the drive belt to the rear end, which is ok, keeps stuff from breaking lol.

#4 wvbuzzmaster OFFLINE  

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Posted May 09, 2011 - 02:29 AM

Here is a side by side picture I took this weekend when I was reworking the alternator. The pulley on the left is the one I worked on, and the pulley on the right is the machined one. I had 5/16 bolts in the holes on the pulleys so I could keep track of my bolts, didn't think about the pics lol. Also in the picture is the Ford truck starting solenoid and IH truck ignition switch which I have also installed in the Caterpillar for rewire project. (And yes, that is the E20's hood lol)
catalt3.jpg

#5 KennyP ONLINE  

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Posted May 09, 2011 - 03:18 AM

Looks to be an improvement. I would also use something a little stiffer for your adjustment, that strap metal bolted to the foot rest looks a bit thin and will cause some of the vibration. LOL How big of a battery are you using?

#6 wvbuzzmaster OFFLINE  

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Posted May 09, 2011 - 03:39 AM

Kenny, thanks for your concern about the strap, I threw it together the last minute and thought to myself is it stiff enough. Well, after using it I decided it was more than adequate and ground it up a little smoother. I mean it is bolted to the footrest so I doubt that is much better than the strap LOL. And as for the battery I am using a 360 amp (300 CCA) Huskee Lawn and Garden battery I bought at Tractor Supply last year. Figure it is more than adequate, I mean it is bigger than stock by a little bit lol. Keep in mind the alternator is only 37 amp and not full time (turns on and off on its own don't know, don't ask lol).

#7 MH81 ONLINE  

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Posted May 09, 2011 - 07:25 AM

Nice Casey. Just want to check the foot rest and strap for fatigue after some use. That is way too close to the tootsies for it to come apart.

#8 wvbuzzmaster OFFLINE  

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Posted May 09, 2011 - 09:41 AM

LOL Alan, tootsies? who uses that word anymore lol.

#9 MH81 ONLINE  

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Posted May 09, 2011 - 03:44 PM

OK, How's 'bout "Little Piggies"? Is that better? :laughingteeth:

#10 wvbuzzmaster OFFLINE  

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Posted May 09, 2011 - 05:15 PM

Alan, makes me think of the little rhyme I heard as a little kid, do you really want to sound that old? lol




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