- posted
16 years ago
Prestolite Alternator noise
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- posted
16 years ago
Tighten the belt and see if it goes away.
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- posted
16 years ago
Almost all of the alternators that are normally used on 60's to late 80's GM, Ford and Chrysler vehicles use the same front bearing and the same rear bearings. I do not know if the Prestolite bearings will be the same, but it would not surprise me! If they are please post it.
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- posted
16 years ago
The Prestolite alternators eventually all squeak. It is not the front ball bearing, but rather the needle bearing at the rear. Take a sharp pin punch and poke a hole in the sheet metal bearing cover. A drop or two of oil, or chassis grease will fix it. The new bearing has the end cover attached, so no permanent harm. The rotor is the inner bearing surface, so it is best not to let it run dry for too long. A circle of tape applied to the back (on a clean surface), keeps the dirt out. The bearings are common items, at a bearing supply house. Some of the replacement rear bearings, have a slightly elongated rear cover, to hold a little extra grease.