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  #1  
Old 02-18-2012, 10:58 AM
J.McKludge's Avatar
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Location: Asheville NC, USA
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Alternator belt query

Hey guys, heres a quick one.
I see there be two belts running the alternator in my 1984 300d. One of them is squealing like a pig, the other one is fine, so the tension is good. This squealer mustve strethched out over time, or been too big to begin with. Are they both necessary for the alternator to funtion properly? Or is one just sorta there for backup? I only ask because the euro parts store is across town, and that squeal is pretty unbearable. Since its not really doing its job so well anyway, would it be imprudent to cut the squealer and go get the new belt? I mean, its bad enough to emit a burning rubber smell, so its in danger of snapping anyway, seems like.
What do you guys think? I dont wanna take the bus lol. I've got a mercedes for cryin out loud...(which it what it is doing)
Thanks fellas.
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1984 300d turbokludge. Nato flat black- daily driver

"In the depths of your ignorance, what is it you want? Whatever it is, I can't deliver it because I just don't see it.
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Old 02-18-2012, 11:30 AM
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IF

If memory serves me......those are a "matched set" of belts. And IF my memory is still good those kind of belts should be replaced as a set.
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  #3  
Old 02-18-2012, 11:45 AM
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Thanks bud. Better figure something out.
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1984 300d turbokludge. Nato flat black- daily driver

"In the depths of your ignorance, what is it you want? Whatever it is, I can't deliver it because I just don't see it.
This isn't worth it. No money is worth listening to...(leaves studio)"
-orson welles
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  #4  
Old 02-18-2012, 11:46 AM
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I'm not sure i understand this scenario correctly. How can only one of the belts squeal? If only one squeals then the other must be turning the pulleys correctly which means there shouldn't be a difference in speed to cause a squeal in the first place. You sure it's not the tight belt that is squealing because it can't hold the load by itself?
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Old 02-18-2012, 12:11 PM
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Diesel giant has got them for 42.50, but doesn't mention if they were goodyear engineered or anything special. Has anyone bought these, or any belts from the giant? Are they pretty solid?
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1984 300d turbokludge. Nato flat black- daily driver

"In the depths of your ignorance, what is it you want? Whatever it is, I can't deliver it because I just don't see it.
This isn't worth it. No money is worth listening to...(leaves studio)"
-orson welles
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  #6  
Old 02-18-2012, 01:52 PM
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Quote:
Originally Posted by J.McKludge View Post
Diesel giant has got them for 42.50, but doesn't mention if they were goodyear engineered or anything special. Has anyone bought these, or any belts from the giant? Are they pretty solid?
Those belts by Conti-Tech are $6.47 each on Fastlane.

Quote:
Originally Posted by J.McKludge View Post
Are they both necessary for the alternator to funtion properly? Or is one just sorta there for backup?
The reason that two belts are used has nothing to do with redundancy. Two belts allows the belt tension to be reduced by 50%. Reduced tension translates to longer bearing life in the accessories.
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Last edited by tangofox007; 02-18-2012 at 04:17 PM.
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  #7  
Old 02-18-2012, 02:03 PM
J.McKludge's Avatar
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Thanks tango. That Makes perfect sense. All I gotta say is: wtf giant? Fifty bucks, srsly?
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1984 300d turbokludge. Nato flat black- daily driver

"In the depths of your ignorance, what is it you want? Whatever it is, I can't deliver it because I just don't see it.
This isn't worth it. No money is worth listening to...(leaves studio)"
-orson welles
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