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Case Tractors Discussion Forum
:

GM alternator on a Case 800 fit problem

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INCase

08-13-2007 09:25:38




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I have a GM alt. from a Caprice. Have the wiring down but am having trouble getting the mounting lined up to keep the belt somewhat straight and ave the alt shaft not hit the fan. Any suggestions on a bracket setup or do I need a different GM alt model? Thanks.




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midlam

08-16-2007 10:34:48




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 09:25:38  
I have run alternators on a 930. Happened to find a delco that has a little longer mounting ears so that the body clears the engine. On the other delcos I used ,I had to grind the alternator body to get clearence.



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Bob/wis

08-14-2007 05:13:37




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 09:25:38  
Most of our tractors use the later delco alts from say the late 70's to the late 80's. I use the delco internal regulated ones for the conversions. It can be doen one of 2 ways. take the mounting lug off the tractor and weld 2 tabs on it to fit on each side of the big main lug on the alt. or bend a piece of iron to fit on the main lug looks like a piece of channel iron when done. Then weld it on with the holes drilled in it to the lug. I will see about get a pic or two if you want.
Bob

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Jim B

08-13-2007 20:32:01




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 09:25:38  
28 years ago I installed an older Ford Alt on our 800 Diesel. When I say older, I mean the multi-terminal, small frame version (55 amp if I remember right) with an external regulator. It bolted right-up in the proper belt alignment position after reaming out the hole on the alternator body to the size of the generator mounting hole in the lug on the engine block. Biggest problem was modifying the Ford wiring harness to fit the Case layout. I mounted the regulator on the back side of the fuel tank support stamping next to the battery.

Worked so easy and cheap that we've done the same on a 800 gas, a 830 & a 930.

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dboll

08-13-2007 14:21:14




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 09:25:38  
use the Delco SI with the oem reg., I make brackets with a 3/8x1 flat with two angle irons welded on the bottom to use the gen mounting holes and two welded on the top to mount the alt. on, this allows you to move the alt. ahead for belt alignment and makes for a nice neat bracket



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No tools

08-13-2007 09:45:49




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 09:25:38  
I'd have to look at it (BUT) think this is what i done on a couple.

Take the stud that the generator bolts to out of block turn it end for end put it back.Now if i remember you have to grind a small amount right above the bolt hole on the block itself.
I took a piece of metal after installing and bent to fit need on the back of alt there is a bolt hole. down to the other end of that bolt.to prevent viberation and breaking front bolt.

Bill

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4435

08-13-2007 09:44:09




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 09:25:38  
Use a Hitachi if you can find one. Same wiring a more compact installation. You will have to build some type of support bracket for proper and simple installation. Tom



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INCase

08-13-2007 12:03:45




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 Re: GM alternator on a Case 800 fit problem in reply to 4435, 08-13-2007 09:44:09  
Do you know what vehicles used the Hitachi? The 1986 Caprice alt is rather large in diameter which doesn"t help. The PS hoses are more in the way with this alt. too. Thanks for the feeback.



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old

08-13-2007 12:13:31




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 Re: GM alternator on a Case 800 fit problem in reply to INCase, 08-13-2007 12:03:45  
Toyota pick ups used the hit. type alternators. I used on once on a Farmall 450 off a 1986 toyota pick up



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