Alternator pully

pelky350 · Mar 28, 2017

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I have been experiencing charging issues, would a smaller alternator pully charge better ? I have two alternators as spares and one has a smaller new looking pully would this be benificial as it would spin faster ? As for charging issues I think maybe alternator is just old and maybe lost a diode but not sure

79jasper · Mar 28, 2017

3g..........

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pelky350 · Mar 28, 2017

In the future yes lol but for now I have 2 extra regular alternators

79jasper · Mar 28, 2017

This is kinda like putting used tires on.
They could last 5 miles, or 5k miles.
How do you "know" both are good?
Theoretically the smaller pulley will charge sooner. But it's also smaller, which I assume is lower amperage.

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IDIBRONCO · Mar 28, 2017

I'm not sure that he was talking about putting these alternators on. I think the pictures were to show the pulley sizes. I hope he puts on the right alternator.

pelky350 · Mar 28, 2017

The one with the larger pulley came off my truck a while back because I thought alternator was bad, turned out a wire wa loose on voltage regulator, the one on my truck now is a junkyard one that seemed to work for a while. The smaller pulley one I wouldn't be using but thought maybe I could use the pulley off it to put on the other one if it would do any good ? It was just a idea lol

shawn deere · Mar 28, 2017

Ive actually paid for used tires a time or two. Lol

If i had 2 used alternators sitting on a bench and the one in my pickup went out. Id put the next one in line on. As long as the bearings sound good.

pelky350 · Mar 29, 2017

I've paid for used tires almost every time or traded and got them for free a few times too lol

79jasper · Mar 29, 2017

I wasn't saying you can't make out okay with used tires.
But you just never know.

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typ4 · Mar 29, 2017

the small pulley has narrower belt groves. The low charge at idle is a 1G characteristic, run your used stuff, I guarantee some new parts are crap out of the box.
I have a near new 100 amp 1G you can have for cheap if you like. Came off a motorhome that got wrecked 200 miles after I installed a new alt.

pelky350 · Mar 29, 2017

typ4 said:
the small pulley has narrower belt groves. The low charge at idle is a 1G characteristic, run your used stuff, I guarantee some new parts are crap out of the box.
I have a near new 100 amp 1G you can have for cheap if you like. Came off a motorhome that got wrecked 200 miles after I installed a new alt.

im just gonna have to give you my credit card and order like a crate of parts from you lol

shawn deere · Mar 29, 2017

79jasper said:
I wasn't saying you can't make out okay with used tires.
But you just never know.

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Indeed! The price must out weigh the risk

Alternator pully

pelky350

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79jasper

Chickenhawk

pelky350

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79jasper

Chickenhawk

IDIBRONCO

IDIBRONCO

pelky350

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shawn deere

So many wrenches, so little time...

pelky350

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79jasper

Chickenhawk

typ4

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pelky350

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shawn deere

So many wrenches, so little time...

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