Serpentine Belt size help
01-30-2006, 07:57 AM
#1
Serpentine Belt size help Anyone know where I can get a 58.5" length serpentine belt? I have been to Autozone and O'reilly's without success.
My '94 Z28 has a March underdrive pulley on the crank and an overdrive pulley on the alternator. All was well and good with a Dayco Polycog 5060590, until I removed the A/C and installed a GM Perf. Parts A/C delete pulley. It is supposed to maintain the same belt size. In my case it did not. The Dayco started slipping a little.
Needing a slightly shorter belt, I ran out and all I could find is a cheap Kelly 592K6. It worked for a little while, but now it slips on startups and when I let off the throttle after a quick blip. I can visually see that the sucker is loose when idling, but it has not thrown the belt yet. However, the squeal when it slips is annoying and embarrasing. Especially when I fire the car up at the track.
If I am understanding the part numbers correctly, I think the belts I have are 59" long. I need one just SLIGHTLY shorter, like a 58.5". A 58" might work, but I would be afraid of it being too tight and wearing out my alt bearing.
TIA,
Todd
Edit: My idler/tensioner pulley is nearly new and in good shape, so we can rule it out.
My '94 Z28 has a March underdrive pulley on the crank and an overdrive pulley on the alternator. All was well and good with a Dayco Polycog 5060590, until I removed the A/C and installed a GM Perf. Parts A/C delete pulley. It is supposed to maintain the same belt size. In my case it did not. The Dayco started slipping a little.
Needing a slightly shorter belt, I ran out and all I could find is a cheap Kelly 592K6. It worked for a little while, but now it slips on startups and when I let off the throttle after a quick blip. I can visually see that the sucker is loose when idling, but it has not thrown the belt yet. However, the squeal when it slips is annoying and embarrasing. Especially when I fire the car up at the track.
If I am understanding the part numbers correctly, I think the belts I have are 59" long. I need one just SLIGHTLY shorter, like a 58.5". A 58" might work, but I would be afraid of it being too tight and wearing out my alt bearing.
TIA,
Todd
Edit: My idler/tensioner pulley is nearly new and in good shape, so we can rule it out.
01-30-2006, 10:05 AM
#3
Originally Posted by Tony Shepherd
They only make a 53" or 59, 60". Your tensioner might be worn out. I would check that first Todd.
However, maybe I could get a Katech tensioner or something that would have a little heavier spring? Maybe it would hold the belt tighter?
