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Guest Message by DevFuse
 

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Got amps? GM Alternators! (pics and part#'s added)


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84 replies to this topic

#76 Mykeys Toy

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Posted 05 September 2009 - 07:55 AM

It isnt quite the same thing but since you made it work... very cool.
My headlights aren't any brighter at idle and I found that I should turn the stereo down as well or would drop below 12V. Now anything over 1200 RPM and OH Yeah ! lights are bright and the stereo is turned back up.

And for the update since I sinstalled my Alt 5-6 years ago. No problems!
It is very big and I think my pulley is off by just a little. My belt now needs to replaced.. Though the car has sat for a bit over a year waiting for my lazy arse to replace a headgasket. (Finally running!)

Mike

#77 xbeerd

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Posted 17 September 2009 - 09:33 AM

speaking of alternators.

JCWhitney lists an alternator for the 92 loyale, i think its a bosch, boasting up to 200amps output

anyone tried one of those? not sure if we're talking ea81's or ea82's in this thread

#78 TahoeFerrari

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Posted 18 September 2009 - 01:24 AM

speaking of alternators.

JCWhitney lists an alternator for the 92 loyale, i think its a bosch, boasting up to 200amps output

anyone tried one of those? not sure if we're talking ea81's or ea82's in this thread


A '92 Loyale is an EA82. I looked up the JC Whitney alt. and for approx. $90 I very much doubt that it's 200A. It is very likely a 60A stock replacement. If you read the statement containing the 200A reference:

* Bosch Alternators deliver amperage output up to 200 amps, while also providing maximum available amperage at low engine RPM
* Very high output, high capacity alternators for a wide variety of sport compact vehicles, including the most popular Asian imports
* High output available on certain models


it seems pretty obvious that this is a general statement about Bosch alternators saying that they may "deliver amperage up to 200 amps .... High output available on certain models".

I've got '86 Nissan Maxima 90A alternators (that I found out about on the good old USMB) in my '87 and '89 EA82's. They bolt right in, but the Maxima serpentine pulley has to be changed to the Subaru one (preferably one piece and not the split kind) and you have to make or have made a spacer to do this). I've had both of them running for about a year now without any problems. Along with upgraded 6ga cables, 120A Fuses, and an auxiliary battery I use them to run 1200W inverters located under the driver seat to power AC stuff - 750W coffer maker, 750W hot plate, AC drop lights, drills, etc. Very handy out in the boonies.

#79 Special T

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Posted 20 September 2010 - 08:18 PM

contacted parts america and this is what they sent me.


Your Palladium P7157 alternator fits the following vehicles:
I tried to pick one of these alternators up today... the housings looked nothing like the pics... is there another Part number? What engine was used in these rigs? Im guessing a chev 350? I couldn't use the parts america#
I tried Napa & Carquest has anyone done this recently? can i get a part number PLEASE :-\

BUICK
1977 CENTURY
1977 ELECTRA
1978 LESABRE
CADILLAC
1980-1984 COMMERCIAL CHASSIS
1980-1984 DEVILLE
1980-1985 ELDORADO
1979-1985 FLEETWOOD
1980-1985 SEVILLE
CHEVROLET
1984-1985 P30 VAN
GMC
1984-1985 P35/P3500 VAN
OLDSMOBILE
1979 CUTLASS
1979 CUTLASS CALAIS
1979 CUTLASS CRUISER
1979 CUTLASS SUPREME

#80 Mykeys Toy

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Posted 20 September 2010 - 10:22 PM

That is the correct part number I had to order it online which by the way saves you a few dollars probably more if you can order one from a good parts house like Rockauto or the partsbin. The housing is larger so yes it is different. I have done this swap and it works just fine to this day. I think a different pully would be better because at idle it pushes around 11~ volts or so lower when I had the stereo turned up but never made it fluctuate @ cruising speed.

Mike

#81 GeneralDisorder

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Posted 21 September 2010 - 11:46 AM

If you want something that takes less mods and will bolt directly in - try the Nissan Maxima 90 amp alternator upgrade instead. It doesn't have the voltage drop at idle and bracket modifications needed for the GM alt and is around the same price. Plus it has an internal fan, it's metric, and you can use the same pulley off your OEM alt which means no belt changes, etc. All around an easier swap IMO.

GD

#82 turbo5speedgl

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Posted 27 September 2010 - 01:11 AM

+1 on the Nissan alt just did one the other day very easy drops in with minimal work just some grinding of the spacer and drill the wire eyelet out a bit and remove or solder new plug on just be sure the threaded part on the alt fits the bolt good mine stripped out but it could just be that I got bad threads.

#83 Demolition

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Posted 05 February 2012 - 01:15 PM

Is there anyway you can re do the previous links for this swap?? they seem to be dead I'm very interested in doing this for my loyale's offroad lights
Thanks in advance

#84 GeneralDisorder

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Posted 05 February 2012 - 01:22 PM

Is there anyway you can re do the previous links for this swap?? they seem to be dead I'm very interested in doing this for my loyale's offroad lights
Thanks in advance


Do the Nissan Maxima swap. Easier and cleaner. If you want one I sell them for $110 plus shipping ready to bolt in and tested, etc.

GD

#85 Mykeys Toy

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Posted 05 February 2012 - 01:39 PM

General Disorder is correct in that the Maxima alt is cleaner and easier not to mention less time consuming.. I have done both, and still running both. Here is my .02 the gm alt at idle doesnt quite put out 12 volts, it needs a different pulley. You will be cutting the tabs off the inside of the GM alt and making a new bracket to get the belt to line up and is more guesswork than science. The maxima is remove the pulley shave the spacer and reinstall pulley. On the up side both are working still and really dont have a problem with either but I wont do another GM alt..

Mike




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