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#1
01-22-2015, 07:54 AM
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300sd with 140amp alternator
Hello all. i recently had problems with the very subpar charging system of my mercedes. 1979 300sd om617 engine. i have installed a fairly strong stereo and since the alt just couldnt keep up. so i did the notorious saab swap only a cpl months later to have the regulator go bad and the auto parts chain no longer carries the 15651 cross reference to al129x on hand anymore... rather irritated me. as im sure many other mercedes owners have wondered.. wouldnt it be nice to be able to just go around the corner when an alt goes bad and swp it in the parking lot... well i may have found a way....
 i installed a 140amp alt from a 2000 chevy ( gasp i know... american part on mercedes ) tahoe limited. to do this i had to change that horrid alternator adjusting bracket... i used an adjusting rod tensioner aka heim joint . the chevy alt comes with a six ribbed pulley.. i simple swapped my factory pulley onto it using the chevy fan. also purchased the correct harness for this alt and some thicker wire so i wont have any bad surprises. and a packet of 3/8 washers to fill in space on bottom bolt. Three washers behind the alt and one in from and the belts all line up perfectly.. Now when it decides to fail out I can go to any mcparts store and swap it out.. No more 3-5 day wait without your car. And also not too expensive of a swap. For my alt and harness both with lifetime warranties it topped out to about $200. And if you get the 2 1/2 in adjustable tension rod you can use the factory spec belts. I hope this helps others any questions just ask I will do my best to answer.
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#3
01-22-2015, 08:56 AM
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Quote:
Good info, got any pics? Got any part numbers, GM or McPart?
__________________
Strelnik Invest in America: Buy a Congressman! 1950 170SD 1951 Citroen 11BN 1953 Citroen 11BNF limo 1953 220a project 1959 180D 1960 190D 1960 Borgward Isabella TS 2dr 1983 240D daily driver 1983 380SL 1990 350SDL daily driver alt 3 x Citroen DS21M, down from 5 3 x Citroen 2CV, down from 6
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#4
01-22-2015, 04:15 PM
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dl1468-16-4 is the alt I used from that a-z store.. Not trying to advertise... And the harness came from a competitor PT5768 the O' store... If anyone can advise me how to load photos directly from an android phone I can show... As for the adjustable tension bar.. EBay special..
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#6
01-29-2015, 01:04 PM
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I'd like to see pics too. You could upload your pics to Imgur.com and then post the links. I'm sure there is an imgur app for android.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k
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#11
02-06-2015, 06:54 AM
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#12
02-06-2015, 07:01 AM
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Hopefully this weekend I will have time to get photos of the alternator actually on the car.. Been REALLY cold out here lately. Also when I installed mine I had ordered a 5 1/2 inch rod and its really long.. The 2 1/2 would probably be perfect.
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