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Paint the alternator?

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Ultradog MN
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PostPosted: Sat Apr 10, 2021 6:31 am    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

I'll bet the mini alternator will cost ya 2
or 3 times the price of a 10-SI.
And for what? So others might? appreciate
the looks of it better?
Not me. Paint it or leave it as is.
Remember:
Of the guys here who cry the loudest about
an ugly, incorrect alternator on an N, half
of them have 9Ns or 2Ns they have painted
Red/Gray. A 9/2 Should be all gray.
Have fun.
 
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DennyD
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PostPosted: Sat Apr 10, 2021 4:00 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Week before last, I had a local alternator shop rebuild my Delco 10-SI alternator on my 8N, which they said was likely 45 years old, wasn't charging the battery, & hadn't been previously rebuilt. I gratefully got it back completely rebuilt & painted 3 days later, & I reinstalled it.

One new thing I did do as an extra was to run a 24-inch 4 AWG ground wire from the alternator's negative terminal, around the block to a bolt for the oil filter bracket (the only nearby bolt that'd safely budge without too much effort). The alternator hadn't previously had a ground wire connected, but I wondered about the paintjob & whether that'd affect grounding through the mounting bolts. A buddy of mine who's an electrical engineer that'd worked for General Motors urged me to install the ground wire as a way to maximize the life of the alternator & for safety. I noticed that after running the ground wire, the headlights seem to burn noticeably brighter; not sure if that is due to the rebuild, or the grounding--I'm just satisfied that I took the extra step of grounding with a wire.

Seems worth a mention, in regard to the topic of painting an alternator.
 
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lugnuts2030
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PostPosted: Sat Apr 10, 2021 5:01 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

More voltage with alt working will brighten lights. I would forget the jerry rig wire and sand where alt mounts.
 
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Bruce(OR)
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PostPosted: Sat Apr 10, 2021 6:15 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

You are correct. The alt case grounds through the mounting brackets. No ground? No charge.
 
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JMOR
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PostPosted: Sat Apr 10, 2021 6:15 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

CVPost-DennyD wrote:
(quoted from post at 20:00:28 04/10/21) Week before last, I had a local alternator shop rebuild my Delco 10-SI alternator on my 8N, which they said was likely 45 years old, wasn't charging the battery, & hadn't been previously rebuilt. I gratefully got it back completely rebuilt & painted 3 days later, & I reinstalled it.

One new thing I did do as an extra was to run a 24-inch 4 AWG ground wire from the alternator's negative terminal, around the block to a bolt for the oil filter bracket (the only nearby bolt that'd safely budge without too much effort). The alternator hadn't previously had a ground wire connected, but I wondered about the paintjob & whether that'd affect grounding through the mounting bolts. A buddy of mine who's an electrical engineer that'd worked for General Motors urged me to install the ground wire as a way to maximize the life of the alternator & for safety. I noticed that after running the ground wire, the headlights seem to burn noticeably brighter; not sure if that is due to the rebuild, or the grounding--I'm just satisfied that I took the extra step of grounding with a wire.

Seems worth a mention, in regard to the topic of painting an alternator.
Probably didn't hurt anything & didn't help anything either. Rolling Eyes
 
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JMOR
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PostPosted: Sat Apr 10, 2021 6:17 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Ask your GM engineer buddy why GM never had a ground wire to the alternator? Rolling Eyes
 
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Smokeonthewater
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PostPosted: Sat Apr 10, 2021 6:53 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Fwiw... should I choose to paint mine, it will be mounted to the engine before painting.... no ground issues that way
 
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showcrop
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PostPosted: Sun Apr 11, 2021 4:01 am    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Smokeonthewater wrote:
(quoted from post at 19:53:44 04/10/21) Fwiw... should I choose to paint mine, it will be mounted to the engine before painting.... no ground issues that way



Since the OEM generator was red, if I were going to paint an alternator on an N I would paint it red.
 
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Ultradog MN
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PostPosted: Sun Apr 11, 2021 6:01 am    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

People do it differently I guess.
While I agree an alt. will likely ground just fine through the brackets, they do put a big ground screw on the back of them. So I always add a 10 ga ground to the block.
It's simple enough to do.


 
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Hobo,NC
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PostPosted: Sun Apr 11, 2021 6:44 am    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote


looks at home to me...

https://forums.yesterdaystractors.com/viewtopic.php?t=1202735&highlight=bracket
 
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Smokeonthewater
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PostPosted: Mon Apr 12, 2021 8:23 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Got my first batch of parts today... put the alt brakets, pulley and belt on... 99% sure I'm gonna paint it... it sits much closer to the engine now... much better
 
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Smokeonthewater
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PostPosted: Mon May 03, 2021 10:00 pm    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Decision made...



 
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showcrop
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PostPosted: Tue May 04, 2021 2:52 am    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote

Smokeonthewater wrote:
(quoted from post at 23:00:01 05/03/21) Decision made...





I like it!
 
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Smokeonthewater
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PostPosted: Tue May 04, 2021 9:42 am    Post subject: Re: Paint the alternator? Reply to specific post Reply with quote


Thanks bud... can't wait to get it all done... gonna break my heart to sell it.... I suspect there will be another one in my future one day that I'll keep tho
 
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