F450 altanator problem

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Dec 7, 2007 | 11:57 AM

rgrat1618

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F450 altanator problem

I had a 1999 F450. There is only one altanator on the truck that is mounted in the lower location. If you are looking at the front of the truck it is at about the 7 o'clock position. Where the regular altanator mount is there is a Aura genarator mounted. the problem is that this powerline altnator was not putting out enough power. So under the direction of hehr power systems, I installed a smaller pully. This solved the power problem, but now the belt will slip with the altanator under a load and the throttle not at an idle. Any idea's on this This is on a fire dept truck.

Rob

Dec 7, 2007 | 12:25 PM

ron's power stroke

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From: White Mnt's,New Hampshire

i would have to say with a smaller pully.. you would need a smaller belt too match..

Dec 7, 2007 | 12:57 PM

rgrat1618

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we did install a smaller belt. It's the shortest belt they make. not sure if the contact surface of the pully is to small now and it keeps slipping.

Dec 7, 2007 | 04:23 PM

Kwikkordead

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From: Rio Rico, AZ.

Is that Aura generator for making 110v? I just googled it and that's the best answer I can think of right now.
Other than the smaller pulley for the alternator, is there available a larger crankshaft pulley?