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The Terminator
Engine/Tuning
Belt issues
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<blockquote data-quote="olympic" data-source="post: 16802669" data-attributes="member: 168598"><p>What you are describing happening to your belt (moving forward on the crank pulley with RPM) can only be caused by the alternator pulley being too far forward, or perhaps the crank pulley being too far back. And it would have to be off by quite a bit for the belt to move like that.</p><p></p><p>Have you calibrated the laser tool? I just bought the Gates equivalent and it comes with a tool to calibrate/align the laser. It's really finnicky and I must have spent an hour getting it perfect. It's also an easy mistake to center the laser and target tools on different groves.</p><p></p><p>My car recently frayed the front edge of the belt as well. I bought the laser tool and surprisingly the alternator and tensioner were perfect but the supercharger pulley was off 1.75mm (1/2 rib) to the rear. I never noticed this issue until now because I guess I changed the belt often enough in the past but this latest one has been on there for a few years.</p></blockquote><p></p>
[QUOTE="olympic, post: 16802669, member: 168598"] What you are describing happening to your belt (moving forward on the crank pulley with RPM) can only be caused by the alternator pulley being too far forward, or perhaps the crank pulley being too far back. And it would have to be off by quite a bit for the belt to move like that. Have you calibrated the laser tool? I just bought the Gates equivalent and it comes with a tool to calibrate/align the laser. It's really finnicky and I must have spent an hour getting it perfect. It's also an easy mistake to center the laser and target tools on different groves. My car recently frayed the front edge of the belt as well. I bought the laser tool and surprisingly the alternator and tensioner were perfect but the supercharger pulley was off 1.75mm (1/2 rib) to the rear. I never noticed this issue until now because I guess I changed the belt often enough in the past but this latest one has been on there for a few years. [/QUOTE]
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