Problems with new alternator bracket
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Problems with new alternator bracket
I have an `85 F350 with 460 engine, no A/C. The motor came with emissions air pumps but, since they were not working, I have removed them and recently bought a used alternator bracket to replace the monstrosity that held the air pumps and alternator.
I am not sure about the origins of the new bracket but, I suspect it came from a car. It mounts the alternator lower then the previous bracket and so it comes rather close to the cross member. Also, it aligns the alternator further back and it no longer lines up with the outer most crank pulley that had been the drive pulley for the alternator. Therefore, to drive the alternator I will have to use one of the two power steering pulleys which is a little smaller in diameter then the pulley that had been driving it.
My concerns are the alternator will hit the cross member when the motor is under torque, the smaller crank pulley will not drive the alternator fast enough at idle to keep the battery charged, and the remaining single power steering belt will not be enough to drive the pump under load.
Anyone been there done that? Any thoughts or comments?
Thanks,
Mark
I am not sure about the origins of the new bracket but, I suspect it came from a car. It mounts the alternator lower then the previous bracket and so it comes rather close to the cross member. Also, it aligns the alternator further back and it no longer lines up with the outer most crank pulley that had been the drive pulley for the alternator. Therefore, to drive the alternator I will have to use one of the two power steering pulleys which is a little smaller in diameter then the pulley that had been driving it.
My concerns are the alternator will hit the cross member when the motor is under torque, the smaller crank pulley will not drive the alternator fast enough at idle to keep the battery charged, and the remaining single power steering belt will not be enough to drive the pump under load.
Anyone been there done that? Any thoughts or comments?
Thanks,
Mark
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Joined: Apr 2002
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From: lake ariel usa
Problems with new alternator bracket
I know the car brackets wont work in a 79 250/350 either due to this crossmember. If buy chance you can clear it you can make different length spacers to line the pulley up right. Your kinda stuck with buying supper pricey l&l brackets or fab something up like I did. Andy
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Problems with new alternator bracket
I think if I make spacers and move the whole alternator forward enough to line up with the correct crank pulley then it would not have an interference problem with the cross member. I was just trying to avoid doing the fabrication of the spacers but, I guess I can't.
Mark
Mark
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From: Indiana
Problems with new alternator bracket
[updated:LAST EDITED ON 09-Nov-02 AT 11:56 PM (EST)]mchild, I used the brackets and pulley's and steering pump off a 79 Ford E-250 van with the 460 in my 82 F-250 4x4 and the clearance was great. 
