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Pulley does a alternator use

Tiny
ANGEL.QUIROZ
  • MEMBER
  • 1987 CHEVROLET EL CAMINO
  • 150,000 MILES
What type of pulley does a 1987 El Camino alternator use? Is it a single, double or serpentine, vehicle has heat and A/C
Friday, February 10th, 2012 AT 1:41 AM

5 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
So the old 1 is missing? Does the rest of pulleys have serpentine grooves? What motor is it? 305 v8?
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Friday, February 10th, 2012 AT 1:49 AM
Tiny
ANGEL.QUIROZ
  • MEMBER
  • 3 POSTS
I have a serpentine pulley on the alternator but the rest of the pulleys are single, v pulleys. Whomever did the work on this vehicle never changed out alternators never switched pulleys I guess, how big should the single v pulley be?
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Friday, February 10th, 2012 AT 6:33 PM
Tiny
FIXITMR
  • MECHANIC
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I dont think it's critical a standard size should work? You got the belt? Or when you go buy belt look up alt and see what size it's showing?
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Sunday, February 12th, 2012 AT 8:29 AM
Tiny
ANGEL.QUIROZ
  • MEMBER
  • 3 POSTS
I have a 305 in the vehicle and I have to replace the belt because the last person who worked on the vehicle put on a v-belt on a serpentine pulley. There are no serpentine belts on the vehicle
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Monday, February 13th, 2012 AT 6:08 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Was it working? Just look up alternator at parts store for pulley size or get 1 off similar yr junker for chev v8.
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Monday, February 13th, 2012 AT 7:15 PM

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