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#4117086 - 08/03/21 03:36 AM Alternator rebuild
triplej057 Offline
Rookie

Registered: 10/30/12
Posts: 67
Loc: California
Hello,
Searching for a rebuild how-to or kit for a GL671 didn't turn up too much, but of course, sometimes it's easier to just ask the forums - that's why they're here, right?

Mine is GL671 200 amp alternator, with bad bearings - it still charges intermittently but has "the sound" that they're failing.

Info on the alternator model found here:
https://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=1726663

Public picture of the sticker for reference:
https://drive.google.com/file/d/1UnfeEIeSIQM75bm7bxxrAdchX9c2kmSO/

Thank you,
Dave

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#4117094 - 08/03/21 05:57 AM Re: Alternator rebuild [Re: triplej057]
TheShadow Offline

Over the Hill

Registered: 05/01/07
Posts: 1782
Loc: SoCal High Desert
_________________________
'95 P71, 5xx,xxx miles, Rebuilt tranny, 2.73. Lives as a cab, and will die as a cab. (Died-FrontEnder)
'96 P71, 640,xxx on original drivetrain. (Now parts car - T-bone & roll)(You should see the roof - A,B & C-pillars chopped on driver side)
New to list: '96 MGM (Nice! @ 35x,xxx), '97 CV P71, '98 CV P71, '00 CV P71, 01 P71 (2 of 'em) '03 CV P71 (Nice so far) (All Ford Zinc Yellow w/Black decals & trim) And the list is growing...........
Taxicab mechanic: I HATE DRIVERS!

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#4117224 - 08/04/21 09:44 PM Re: Alternator rebuild [Re: triplej057]
ironmarinebill64 Offline
Rookie

Registered: 01/30/21
Posts: 54
Loc: New York, USA
If rebuilding a Mitsubishi 200 amp, I've had success with these folks too (have always shipped fast)

https://www.maniacelectricmotors.com/mial20crvi20.html
_________________________
2005 Lincoln Town Car Signature Limited
5.4 liter throttle body; PI oil cooler, intake tube & air box; Mark VIII aluminum driveshaft; Trac-Lok limited slip; Richmond Gear axle shafts; J-Mod with Sonnax valves; Limo rear control arms and a great sounding stereo that won't ever automatically remember my Bluetooth settings

1999 Mercury Grand Marquis (gave that to youngest son, and he's now a converted true believer)

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#4117318 - 08/05/21 07:43 PM Re: Alternator rebuild [Re: triplej057]
triplej057 Offline
Rookie

Registered: 10/30/12
Posts: 67
Loc: California
These are good links,
Thank you for the replies,
Dave

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#4117320 - 08/05/21 07:49 PM Re: Alternator rebuild [Re: ironmarinebill64]
triplej057 Offline
Rookie

Registered: 10/30/12
Posts: 67
Loc: California
Yes it's a Mitsubishi 200 amp, I just want to go with the same one that's already in there, and if I want to add some stuff later then I'm already set up.

Are there any guides for that model of alternator? Or it's pretty similar to rebuilding any other alternator?

Thanks,
Dave

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#4117352 - 08/06/21 03:52 AM Re: Alternator rebuild [Re: triplej057]
ironmarinebill64 Offline
Rookie

Registered: 01/30/21
Posts: 54
Loc: New York, USA
There are a handful of good tutorials on YouTube.

While it's open, you can also change the brush/regulator assembly easily, but if the slip ring copper is too worn, it becomes a bit more involved because of the need to re-solder a new slip ring.

The other thing is a specialized pulley tool is needed to remove the factory override pulley.

I'd recommend spraying everything with penetrating oil first and letting it sit for a little bit before opening it up.

Otherwise, swapping in new bearings is simple and straight forward. The front sits inside the retainer on the case front portion, and the rear is a press fit that can be removed with a small gear puller (requires one with sharp edges to get under bearing on the rotator shaft), and re-installed with a larger c-clamp and right size socket that is close in size to rear bearing inner sleeve.

Good luck Brother.
_________________________
2005 Lincoln Town Car Signature Limited
5.4 liter throttle body; PI oil cooler, intake tube & air box; Mark VIII aluminum driveshaft; Trac-Lok limited slip; Richmond Gear axle shafts; J-Mod with Sonnax valves; Limo rear control arms and a great sounding stereo that won't ever automatically remember my Bluetooth settings

1999 Mercury Grand Marquis (gave that to youngest son, and he's now a converted true believer)

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#4117392 - 08/06/21 10:54 AM Re: Alternator rebuild [Re: triplej057]
MurkyMerc Offline
Rookie

Registered: 01/06/15
Posts: 51
Loc: NH
Originally Posted By triplej057
Yes it's a Mitsubishi 200 amp, I just want to go with the same one that's already in there, and if I want to add some stuff later then I'm already set up.

Are there any guides for that model of alternator? Or it's pretty similar to rebuilding any other alternator?

Thanks,
Dave


This is a pretty good guide for performing the rebuild;

6G High Amp Rebuild Kit

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#4117594 - 08/08/21 05:46 PM Re: Alternator rebuild [Re: triplej057]
triplej057 Offline
Rookie

Registered: 10/30/12
Posts: 67
Loc: California
Thanks for the replies,
I got a junkyard alternator for about $30 off a vehicle that looked pretty good, mileage unknown of course due to digital cluster.

I'm not really interested in getting the $8 core charge back, I'd rather have a spare alternator or one to sell, etc.

I lost all of my tools in the California wildfires last year, so I don't have an impact gun or compressor and I'm kind of waiting to buy all that stuff again until we move into a new house.

I understand that shipping an alternator is expensive, so maybe it would be better just get it done locally, but could anyone recommend someone who could rebuild my old alternator? Sometimes it's easier to just farm it out and not think about it, my actual job and my family takes most of my time.

If not, no worries, thank you,
Dave


Edited by triplej057 (08/08/21 05:48 PM)

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#4117682 - 08/09/21 04:18 PM Re: Alternator rebuild [Re: triplej057]
MurkyMerc Offline
Rookie

Registered: 01/06/15
Posts: 51
Loc: NH
You can ship it to these guys in Canton,Ohio and they will inspect it and give you a quote on parts and labor and upgrades for it.

Performance Alternator Inc



Edited by MurkyMerc (08/09/21 06:16 PM)

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#4117728 - 08/10/21 01:28 AM Re: Alternator rebuild [Re: triplej057]
triplej057 Offline
Rookie

Registered: 10/30/12
Posts: 67
Loc: California
Great, thank you for the reply,
I will look into it,
Dave

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