Author Topic: Alternator Bracket  (Read 3099 times)

col320ce

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Alternator Bracket
« on: September 28, 2016, 13:14:48 »
I've changed the alternator and the new one is a little different to the one that I took off (I think the replacement is 'more' correct for the car).  It is not sitting well on the bracket and is causing a squeak (it's slightly twisted and not exactly in line with the water pump pully. Can anyone show me what the bracket attachment should look like?  My cobbled set up can be seen in the picture ...
Thanks for any help...
Col

1964 230SL
1965 250SE coupe
1993 320CE Sportline

cfm65@me.com

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Re: Alternator Bracket
« Reply #1 on: September 28, 2016, 16:39:16 »
Hi Col,
The three pullies must line up 100% or as close as you can get it. Otherwise it will damage the fan belt, possibly damage the water pump and/or  alternator bearings or, least of all, the belt will squeal lke a stuffed pig.
Although we know exactly what you are talking about, your picture does not show us the problem clearly.  Try to shim it, fore or aft, with a washer or two.  See if you could get us a better photo of the alt, the belt and the water pump, showing how they line up.
Regards
Chris
Cape Town
28 Ford Model A Pickup
29 Chevy Phaeton
67 E Type FHC
67 250SL 5 speed
83 911SC
2015 VW T5 California Pop Top

travellerdogs

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Re: Alternator Bracket
« Reply #2 on: September 28, 2016, 18:51:50 »
hi, I am in the process of acquiring a 65 230sl for parting out. Should have it delivered in a couple weeks. May be able to help you. thanks, Carey
travellerdogs 1969 280SL,  1981 380SL:  1955 HD Panhead: 2007 HD Street Glide: 1956 Mercury Montclair, Black 2 Dr Htp; 1965 230SL: 2005 Pontiac Sunfire: 1993 Range Rover: 1977 450SL parts car:

Benz Dr.

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Re: Alternator Bracket
« Reply #3 on: September 29, 2016, 03:53:55 »
I think those early cars use a mounting kit similar to what 190SL's use. Steel bushings, rubber grommets and thin steel washers plus a ground cable.

 If you don't have the right parts in there it won't hang properly. You should also check the bracket for wear at the mounting holes. If they're out of round it won't help at all.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

col320ce

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Re: Alternator Bracket
« Reply #4 on: September 29, 2016, 07:43:18 »
It's pretty subtle and I don't think the photos do a good job of illustrating the problem...  But these are the photos I have.  I'll have a play tomorrow...  I think the tensioner arm may be slightly in the wrong spot.
Col

1964 230SL
1965 250SE coupe
1993 320CE Sportline

col320ce

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Re: Alternator Bracket
« Reply #5 on: September 30, 2016, 11:39:48 »
Sorted it today... I used a straight edge on the front of the pullies and added washers until it was perfect.  Not an original set-up but works fine. I'll hunt down the correct parts at some point.
Thanks as always.... 
Col

1964 230SL
1965 250SE coupe
1993 320CE Sportline