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1980-924

Joined: 21 Jul 2013 Posts: 31 Location: Western PA
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Posted: Mon Aug 19, 2013 3:01 am Post subject: Best source for replacement starter & alternator?(GM Alt |
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The starter has 'stuck brushes' and the alternator failed the Stator test.
Where would be the best place to get replacement units?
I believe that some folks have used a GM alternator to replace the Bosch unit.
How feasible is this to do?
Is there a GM Alternator (Part# ???) that is a direct bolt in replacement or one that only meeds a minimum of adaptation?
At http://www.924.org/techsection/11electrics.htm I see-->
"david.c.russell@lmco.com
I have seen a few posts about using a Delco Alternator on the 924, and thought I would share my experience with using one on my 1980 931. I switched to the Delco about 1989 and have had no problems whatsoever since. To make the switch, I just removed the old aluminum lower bracket from the block and fashioned one of similar shape to fit the Delco from a piece of flatiron that I bought at Home Depot. I drilled the bracket to match the two original bolt holes, and used the original bolts. I did not use any rubber donuts. For the upper bracket, I bought a chrome universal alternator bracket from JC Whitney. It is shaped somewhat like a banana. To make it work, you need to cut it with a hacksaw and either weld it or bolt it back together at a slightly different angle than original. I just overlapped the two halves and drilled and bolted it back together, to get the angle I wanted. Once again, I used the original mounting bolts. The alternator I used fits a 1986 Camaro, 2.8 V6, with air. I bought it at a local Checker auto parts for $49.95, and it has a lifetime warranty. You will also need the plug for the alternator. It is available at most auto parts stores for a couple of dollars. Wire the red wire from the plug to the battery connection on the alternator (with the original battery connection). Splice the brown wire on the plug to the blue wire that went to your old alternator. Leave the Delco pulley intact, and use your original alternator belt. Works fine, lasts a long time. I have pictures if someone will tell me how to post them. Thanks, Dave."
Has anyone performed this transplant?
Also, the rubber bushings are disintegrated - I read somethong about hard plastic replacement parts from Toyota???
Does anyone have the Part # or a souce for these?
Thanks in advance... |
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kcoyle

Joined: 15 Jan 2011 Posts: 712 Location: Long Island, NY
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Posted: Mon Aug 19, 2013 8:35 am Post subject: |
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I had both my starter and alternator rebuilt by a local shop although it was way more than 49.95, it was more like $125 each but they came out like new and I know it was done well.
The bushings you can get from Dan at Ideolas garage.
http://garage.ideola.com/prod-ElectricsUpgrades.html _________________ 1982 931- Stock with MBC at 8psi
Relax, all right? My old man is a television repairman, he's got this ultimate set of tools. I can fix it. |
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fiat22turbo

Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR
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Posted: Mon Aug 19, 2013 9:23 am Post subject: |
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I bought new brushes for mine. Quick fix, other than R&R'ing the alternator.
I replaced my starter with one from an Audi 4000/5000. Smaller and slightly better than stock. There's a thread on it around here someplace. _________________ Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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Rasta Monsta

Joined: 12 Jul 2006 Posts: 11733 Location: PacNW
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Posted: Mon Aug 19, 2013 9:49 am Post subject: |
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| fiat22turbo wrote: | | I replaced my starter with one from an Audi 4000/5000. Smaller and slightly better than stock. |
Hmm, wonder if that explains the mystery starter I have. . . _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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1980-924

Joined: 21 Jul 2013 Posts: 31 Location: Western PA
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Posted: Mon Aug 19, 2013 10:48 am Post subject: The Audi starter is the Bosch-SR10X? |
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Is this the one you're talking about?
http://www.amazon.com/Bosch-SR10X-Starter/dp/B000BZJRSA/ref=au_as_r?ie=UTF8&Make=Porsche%7C2&Model=924%7C13&Year=1980%7C1980&carId=002&n=15684181&newCar=1&s=automotive&vehicleType=automotive
This says that it will fit a 1990 Audi 100 with the 2.3L engine, but Amazon says it will NOT fit the 924.
I like the idea that it is smaller, lighter and that it spins up with a higher RPM.
To get the starter out, I ended up cutting off the bolts to the Catalytic Converter and taking the exhaust pipe off along with removing all the heat shields - P.I.T.A.!!!
And then I had to remove the oil filter to get the starter off...
What about the GM Alternator?
Anyone using one of those?
Does it have an internal fan - eliminating the need for the intake/scoop and air hose and cap on the stock alternator?
And wouldn't that stock set up with the cap on the back of the Alternator cause it to be even hotter in traffis where there is no air being forced into the hose to reach the Alternator? |
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fiat22turbo

Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR
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Posted: Mon Aug 19, 2013 1:47 pm Post subject: |
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| Rasta Monsta wrote: | | fiat22turbo wrote: | | I replaced my starter with one from an Audi 4000/5000. Smaller and slightly better than stock. |
Hmm, wonder if that explains the mystery starter I have. . . |
Probably not. Yours is a reverse rotation unit compared to mine. Though, there was a version available that was proper for the 931. _________________ Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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1980-924

Joined: 21 Jul 2013 Posts: 31 Location: Western PA
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Posted: Tue Aug 20, 2013 12:39 am Post subject: Source for Alternator Bushings |
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I found that AutoAtlanta has the rubber Alternator bushings (#18 in the pic below) for $1.48 -
http://www.autoatlanta.com/porsche-parts/924-80-85/902-05.php?pn=059903263A#a
Part # 059903263A - Looks like -
I'd like to get the more durable hard plastic piece, is there a source for the polyurethane version?
I believe I saw where someone used a bushing from a skateboard and that it worked well for them.
Does anyone have the ID, OD, length on the rubber bushing?
Mine are disintegrated so I can't get the dimensions from the old ones.
Last edited by 1980-924 on Tue Aug 20, 2013 1:09 am; edited 1 time in total |
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ideola

Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI
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Posted: Tue Aug 20, 2013 1:07 am Post subject: |
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http://garage.ideola.com/prod-ElectricsUpgrades.html
This page has the high output alternators, the gear reduction starters, OEM alternatives for both, as well as replacement bushing kits for both the 931 and NA alternator setups. _________________ erstwhile owner of just about every 924 variant ever made |
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1980-924

Joined: 21 Jul 2013 Posts: 31 Location: Western PA
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Posted: Tue Aug 20, 2013 1:30 am Post subject: Thanks for the link ideola... |
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Hi ideola,
Did I read where there were problems installing the IMI-155CW Starter and they had to grind/machine it to get the starter to fit?
I am very intertested in the SR10X Starter but I'd like to get verification that it will work.
Most electrical parts are not returnable, so I'd like to hear that it will work before I buy one.
Is the 'Quality Power 150A Alternator' a direct bolt in replacement?
Does it have an internal fan - eliminating the need for the intake/scoop and air hose and cap on the stock alternator? |
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ideola

Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI
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Posted: Tue Aug 20, 2013 1:41 am Post subject: Re: Thanks for the link ideola... |
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| 1980-924 wrote: | Hi ideola,
Did I read where there were problems installing the IMI-155CW Starter and they had to grind/machine it to get the starter to fit? |
I've only had one report of that being an issue on the NAs, and that was a RHD vehicle. I can have the starter drilled for add'l indexation.
| 1980-924 wrote: | Is the 'Quality Power 150A Alternator' a direct bolt in replacement?
Does it have an internal fan - eliminating the need for the intake/scoop and air hose and cap on the stock alternator? |
Yes and yes. The only thing required is to make a sleeved bushing from a short length of copper tube, which you can get for a few dollars. This is because the ears on the QP unit accommodate M10 bolts. The "locally made" bushing will allow you to use the OEM M8 bolts with no other modifications. _________________ erstwhile owner of just about every 924 variant ever made |
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fiat22turbo

Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR
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Posted: Tue Aug 20, 2013 2:38 am Post subject: Re: Source for Alternator Bushings |
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| 1980-924 wrote: | I found that AutoAtlanta has the rubber Alternator bushings (#18 in the pic below) for $1.48 -
http://www.autoatlanta.com/porsche-parts/924-80-85/902-05.php?pn=059903263A#a
Part # 059903263A - Looks like -
I'd like to get the more durable hard plastic piece, is there a source for the polyurethane version?
I believe I saw where someone used a bushing from a skateboard and that it worked well for them.
Does anyone have the ID, OD, length on the rubber bushing?
Mine are disintegrated so I can't get the dimensions from the old ones. |
Hopefully you'll have better luck with them than others have. Google Auto Atlanta here and elsewhere and decide for yourself. _________________ Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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ideola

Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI
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!tom

Joined: 28 Aug 2006 Posts: 1941 Location: Victoria, BC Canada
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Posted: Sun Aug 25, 2013 4:12 am Post subject: Re: The Audi starter is the Bosch-SR10X? |
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| 1980-924 wrote: | What about the GM Alternator?
Anyone using one of those?
Does it have an internal fan - eliminating the need for the intake/scoop and air hose and cap on the stock alternator?
And wouldn't that stock set up with the cap on the back of the Alternator cause it to be even hotter in traffis where there is no air being forced into the hose to reach the Alternator? |
I don't believe an internal fan will allow the alternator a cold air source.
See this link for a brief discussion. _________________ 78 924 NA
5-lug |
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Scorpio

Joined: 05 Jul 2007 Posts: 1957 Location: Brisbane, Australia
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Posted: Mon Aug 26, 2013 8:31 pm Post subject: |
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I've installed the high torque motor from ideola in my rhd motor with no issues it grinding needed at all, works beautifully ! _________________ 1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT
Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!! |
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Rasta Monsta

Joined: 12 Jul 2006 Posts: 11733 Location: PacNW
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Posted: Tue Aug 27, 2013 4:52 am Post subject: |
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. . .and I put one on my 2.5 race car. Spins right over off a tiny little motorsickle battery. _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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