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I changed a few things in my secondary, but didn't touch my primary. And now the primary engaged at 4000 rpms and it used to engage at 3500, I changed the helix and rollers in the secondary. Has anyone seen this?
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compare the length on your two belts.
I figured I was going to need to take a close look at the primary, but I didn't think that going from a straight 36 to a 40/36 would change the engagement.
So if I want to go from 4k to 3k engagement I am going to need to get a lighter spring than a Gold and some lighter weights, or grind the ones I have. To keep my rpms at the top end. With the 40/36 helix, Is that right?