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Old 10-22-2019, 02:46 AM
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Join Date: Apr 2011
Location: SF, CA, USA
Posts: 931
WTB double alternator pulley

i still have the single pulley and it squeaks. anyone got an OM617 double alternator pulley?

'77 240D, 504H, OM617.952, etc.
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Old 10-22-2019, 09:13 AM
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Join Date: Sep 2011
Posts: 790
Looks like a single-alternator, double-belt pulley to me.

I opened this thread wondering why anyone would need two alternators.

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Past mb: '73 450sl, '81 280slc stick, '71 250, '72 250c, '70 250c, '79 280sl, '73 450sl, parted: '75 240d stick, '69 280s, '73 450slc, '72 450sl,
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Old 10-22-2019, 09:19 AM
t walgamuth's Avatar
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 37,016
Squeaking can be caused by using a belt of the width for a double pulley on a single pulley which is designed for a wider belt. That said I probably have a double pulley which I will sell if you need it.
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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Old 10-22-2019, 04:11 PM
1983 300CD's Avatar
Old Benz New Wrench
Join Date: Sep 2017
Location: San Antonio, TX
Posts: 203
Since you'll be in there consider getting the smaller diameter double pulley used on the OM617 300SD after they stopped production of the W123. You would use 1000mm belts instead of 1035mm belts. Everything turns a little faster to benefit all components in stop-go traffic and at idle. It's especially helpful with the water pump and the compressor if you run a/c. If no a/c and no engine temp issues it might not be worth chasing.
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Old 10-28-2019, 01:12 PM
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Join Date: Apr 2011
Location: SF, CA, USA
Posts: 931
well, either one would be great! please let me know if you have a spare.
'77 240D, 504H, OM617.952, etc.
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Old 10-31-2019, 04:20 AM
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Join Date: Jun 2012
Location: Orange County, California
Posts: 280
I have it can ship from southern california via priority or express depending on how soon you need it. PM has been sent.
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