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Changing pulleys on a Sanden 508 compressor

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Old Sep 27, 2023 | 08:53 PM
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Default Changing pulleys on a Sanden 508 compressor

Not sure if this is the correct sub forum, but posted my swap questions here, so hope the moderators if a better forum.

I am installing a Sanden 508 AC compressor on my 5.3 swap. My bracket kit, specifies a 7-8 grove serpentine belt. The Sanden I have has a single V groove.

is there a YouTube video or pics, on how to change out the pulley/clutch ?
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Old Sep 27, 2023 | 10:56 PM
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Here is the e Sandsen Compressor Service Guide that includes tools and instruction for a pulley removal.

I had a similar problem where I had 2 V belt grooves and needed to go to 6 serpentine grooves and Sanden only made 7 groove ones for my compressor.. I ended up machining the 2V belt to 6 serpentine.

Before:




After:


BTW, I noticed in the service guide something about that compressor was for R12. Not sure though.

is the 7-8 groove stuff for a supercharger?
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Old Sep 29, 2023 | 03:09 PM
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Looks like I am heading down the same path. Where did you find the 7 grove pullies ?

if you had a 6 grove belt, & a 7 grove pulley, why could you choose 6 of the 7 groves that alighned with the serpentine belt ?
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Old Sep 29, 2023 | 03:24 PM
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Originally Posted by Boy Scout
Looks like I am heading down the same path. Where did you find the 7 grove pullies ?

if you had a 6 grove belt, & a 7 grove pulley, why could you choose 6 of the 7 groves that alighned with the serpentine belt ?
I used a Range Rover power steering pulley. Cut the inside of it out and friction fit it to the machined V belt part. It was 7 tooth. I took 1 tooth off because the rest of my setup is 6 teeth and that way there is no chance for it to cross over 1 tooth. The edge of the first tooth is actually the original V belt pulley. I put 4 tack welds to keep it in place.

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Old Sep 29, 2023 | 03:54 PM
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I can pull a 6 grove pulley off of a Sanden 709 I have siting around, but the center shafts of the two units are different diameters
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