M1008 Alternator. Buy new or rebuild?

[azex]

Trying to decide whether to find a new one or rebuild "Gen 1" which loads the belt after starting causing horrible belt squealing and even though the truck has 100K on it, both alt pulleys have grooves worn in them from belt slippage.

What y'all think?

D.

 

[o1951]

NOS or top quality rebuild only.
I installed a 100 amp replacement from a well known auto parts store. It looked great, windings were identical wire size, fresh and properly consolidated, bearings new and tight...
It worked fine until the first time he turned plow lights on with cabin heater and wipers. Then it smoked and burned out.

Replaced it. Put an ammeter on it and started turning stuff on. At 60 amps, it started smoking. Scraped winding with pocket knife - rewound with ALUMINUM wire!!!
Returned it, and special ordered one rebuilt by Delco - cost more, but we turned everything on, and even added another battery as a load - got to about 90 amps, alternator got a little warm - no smoke - COPPER windings, like OEM.

 

[azex]

The full rebuild kit is only 45 bucks. NOS ones are "brand x" when it comes to condition and new ones are 100-180 ea.

D.

 

[K9Vic]

If you have a good core, rebuilt it. If you have the extra cash buy the complete kit it it pretty much gives you a new alternator less the coil/stator and rotor, but those hardly ever go bad.

I have rebuilt about 8 of them now, really easy once you get the hang of it. Just remember to double check everything before you install it back on. Bolts are tight all around inside before you put the cover back on and the bushing pin holder is removed before you install it back in the truck.

Also, NEVER remove the alternators on either side without disconnecting the battery POS & Neg terminals. I have seen too many stories here where people tried to short cut and fired parts or welded wrenches to engine parts.

Personally, I order from ASP Wholesale as this is where I have always got my parts before CUCV started up. I will probably look into going with CUCV Electric next time I need a kit as they have a more complete one. Hopefully lead time is just as fast as I usually get mine from ASP after they send it in 2-3 days US Priority.

 

[85CUCVtom]

A quality core is worth rebuilding. If your unsure of doing it yourself most auto electric shops can do it for you. CUCV Electric has all the parts you need in a rebuild kit.

 

[cucv1833]

Rebuild.

I have ordered parts from CUCV Electric. Works great. But I like bringing my stuff to the LOCAL electric/magneto shop in town. They do a good job and its ready the next day working and all cleaned up.

 

[scottladdy]

I will probably look into going with CUCV Electric next time I need a kit as they have a more complete one. Hopefully lead time is just as fast as I usually get mine from ASP after they send it in 2-3 days US Priority.

Just bought two dual alt rebuild kits from CUCV Electric, plus 4 replacement relays. Kits are top notch. Had a minor issue with missing inventory. Emailed John, and he jumped on it and sent missing parts expedited, at my door as fast as possible. Great service. FYI.

 

[carleckenrode]

I rebuilt mine, or I should I say repaired. It was easy to take apart. The voltage regulator was bad. I was able to find a replacement on Ebay. It is still working OK.
Carl