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Red3 View Drop Down
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Joined: 09-May-2005
Location: Ireland
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Points: 298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Red3 Quote  Post ReplyReply Direct Link To This Post Topic: Alternator Pulley
    Posted: 12-February-2009 at 15:26

Hey Lads,

Been trying to track down the cause of a load screeching noise coming from the front of my engine. I replaced the viscous coupling, belt and upper and lower idler pulleys but the noise was still there and getting worse.  I've finally tracked it down to the Alternator pulley, thing is i've been told that this part is not available separately and i'll have to buy a complete alternator for 300+.

Before i hand over my hard earned, and recession hit money, does anyone here know where i could get a new alternator pulley part no. 12311247312 or alternatively a new/recon 70a alternator for a M43 engined 316.

Any help appreciated.

Cheers.
1995 316i, 2002 520i
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Mike Ryan View Drop Down
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Joined: 17-February-2008
Location: Limerick
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Points: 120 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike Ryan Quote  Post ReplyReply Direct Link To This Post Posted: 12-February-2009 at 16:54

Why not try someone like Miles Balfe Starter Motor and Alternator repair centre. He is located near the Red Cow Inn assuming that he is still in business. Alternator repair specialists will have replacement pulleys for some of their service repair units. They have them for Bosch and Lucas made alternators as far as I know. 

Euro Builts are Better. Drive one and you directly support jobs in the Irish car component manufacturing industry.
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Dergside View Drop Down
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Joined: 16-May-2004
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Points: 4000 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dergside Quote  Post ReplyReply Direct Link To This Post Posted: 12-February-2009 at 16:57

Don't ask me how I know these things, but I believe the dealer below has one!  RRP is £26.73.  If they won't post it, go on Saturday 28th with Ryanair ex-Dub to Bristol for €5.01 excl booking charge!

Dealer Name Wellsway
Address Lower Bristol Road


Bath
BANES
BA2 3DR
Telephone 01225 445222
Contact Peter Hemmings



Edited by Dergside
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Red3 View Drop Down
Really Senior Member I
Really Senior Member I


Joined: 09-May-2005
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Points: 298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Red3 Quote  Post ReplyReply Direct Link To This Post Posted: 12-February-2009 at 17:29
Cheers Dergside, just rang wellsway and they said they can get the part but it won't get here until first week in march so i'll try a few other places tomorrow and if i can't get one i'll just order it.
1995 316i, 2002 520i
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bmwcare View Drop Down
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Joined: 02-June-2006
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Points: 321 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bmwcare Quote  Post ReplyReply Direct Link To This Post Posted: 12-February-2009 at 17:30
The alternator is:
BMW 12 31 1 247 287 (70A) superseded by 12 31 1 247 311 (70A)
Bosch 0 123 310 006 (new)
Bosch 0 986 039 220 (exchange)

The pulley is:
BMW 12 31 1 247 312
Bosch 1 126 601 011

Any BMW dealer or Bosch agent should be able to get the pulley...
Probably quicker to get it through BMW on a VOR

Kind Regards,
Eddie.



Edited by bmwcare
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Red3 View Drop Down
Really Senior Member I
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Joined: 09-May-2005
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Points: 298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Red3 Quote  Post ReplyReply Direct Link To This Post Posted: 12-February-2009 at 17:40

Originally posted by bmwcare bmwcare wrote:

The alternator is:
Probably quicker to get it through BMW on a VOR

Great info Eddie. Whats "on a VOR" mean. 
1995 316i, 2002 520i
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bmwcare View Drop Down
Really Senior Member I
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Joined: 02-June-2006
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Points: 321 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bmwcare Quote  Post ReplyReply Direct Link To This Post Posted: 13-February-2009 at 08:09
Vehicle Off Road
BMW & Mercedes Specialist.
Galway & Surrounding Areas.
www.bmwcare.com
www.mercedescare.com
All BMW models covered including E60/E90/F01/F10 with flash programming/CIP/coding as required
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Red3 View Drop Down
Really Senior Member I
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Joined: 09-May-2005
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Points: 298 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Red3 Quote  Post ReplyReply Direct Link To This Post Posted: 13-February-2009 at 14:03

---UPDATE----

Was halfway throught taking the alternator off. Had the airbox, maf, top idler pulley off and about to remove the belt and i had a thought. I put everything back together but this time i used the old belt.  Started her up and low and behold the sound was gone. Left her running for 10 mins and gave it a few revs but no sound.  So looks as though the new belt was rubbing against something causing the noise.

Little embarrassing but not too much as the well known BMW specialists who fitted the new parts and who i brought the car back to when the sound appeared never copped it either.....;)

Well i hope thats it sorted and i'll get a new belt from BMW and chuck the spurious belt.

Thanks eveyone for your help, it was much appreciated.
1995 316i, 2002 520i
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