Methods used in aligning pulleys? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 5 Old 04-17-2019, 08:23 AM Thread Starter
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Methods used in aligning pulleys?

I have a 91 5.0 with S trim. I’ve had issues with belt slipping. But recently I had to remove my charger to change the alternator in my car. The new alternator had a thicker bracket than the old one so I grinder it to spec. Installed everything, went for a few rides and everything was good. It’s been a few weeks now, and I went out last night for a couple pulls. The belt walked off the pulley and started shredding.
My pulleys must be out of alignment but look good to a naked eye. What is a good way to check if things are aligned correctly or need adjustment?

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post #2 of 5 Old 04-17-2019, 10:41 AM
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I would try a straight edge first off the crank pulley if you can

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post #3 of 5 Old 04-17-2019, 05:12 PM
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post #4 of 5 Old 04-17-2019, 09:04 PM
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get the correct alternator

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #5 of 5 Old 04-19-2019, 12:57 PM Thread Starter
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The alternator mount is to spec of the original one. I grinded it down to match. I can’t use a straight edge. What I did was use a laser which has to joints on the edge which fit in the serpentine grooves. I ran this around the pulley and it appears to align perfectly. I will have to see if something else is out of adjustment. Maybe the charger is a little offset.
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