New alternator, belt too wide? - Team Camaro Tech
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post #1 of 7 (permalink) Old Apr 5th, 08, 07:47 AM Thread Starter
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Joe
 
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New alternator, belt too wide?

I just replaced my alternator on my 68 SS/RS 350. The belt doesn't seem to correctly fit into the pulley. It looks like it's just a bit too wide for the pulley. Like maybe a 16th of an inch. Here's a pic:

http://i78.photobucket.com/albums/j8...1/altbelt1.jpg


Any ideas? Or will it be ok?

Joe
'68 SS/RS 350
Never enough time... even less money.

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post #2 of 7 (permalink) Old Apr 5th, 08, 09:25 AM
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Dave
 
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Re: New alternator, belt too wide?

Mine is pretty much the exact same. It has never come off in 5 years, spinning engine to 6,200 rpm. I made sure the pulleys are all lined up nice and straight.

I know they made deep groove pulleys for certain "high performance" engines, but I think you'll be fine for street car.

Dave F. in Rhode Island
'68 Camaro SS Accel DFI 454 (SOLD - I'm a boring Corvette owner now)
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post #3 of 7 (permalink) Old Apr 5th, 08, 09:51 AM
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Don
 
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Re: New alternator, belt too wide?

What brand? 15 series part number I partially see, is pretty much how they are measured as far as width. I think the brand will play a part. too. Better to be a little wide so V sides run on pulley V's rather than the bottom of the grove.

Don
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post #4 of 7 (permalink) Old Apr 5th, 08, 10:36 AM
 
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Re: New alternator, belt too wide?

We can use two sizes, one like say, 7/16" and the other, say like a 1/2".

I forget which is stock, I think it is the skinny one? And I'd run the cog-topped belt b/c they tend to stay on better if I remember right.

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post #5 of 7 (permalink) Old Apr 5th, 08, 11:07 AM
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Jon
 
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Re: New alternator, belt too wide?

The belt isn't too wide, the pulley is just too narrow. Get a deep groove one. You'll have fewer problems with thrown belts.

Jon N

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post #6 of 7 (permalink) Old Apr 6th, 08, 01:57 AM
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Re: New alternator, belt too wide?

if you have your old alternator, take the pulley off that and put it on the new alternator.

you don't plan sincerity.
you have to make it up on the spot.

wanna hear about 20 years ago when i was too smart to know any better?
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post #7 of 7 (permalink) Old Apr 10th, 08, 06:38 PM Thread Starter
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Joe
 
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Re: New alternator, belt too wide?

I found this when I did a google search for deep groove pulley. Maybe mine is right after all:


Joe
'68 SS/RS 350
Never enough time... even less money.

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