Gen 5 whipple tearing belts

[5ohcoyote]

Has anyone else had issues when installing a gen 5 on a 15-17?

ive contacted whipple, checked the spacers, checked belt size and tension and I’m still tearing belts. It’s currently 6 rib on 3.5 pulley. There’s one spacer for the tensioner pulley that’s a bit smaller it measured .36 when it should be .375, whipple said that shouldn’t be the issue.

I can get the belt to seat right, but once I start it the belt gets pushed forward on one idler pulley and once I go wot the belt turns into a 4 rib.

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[crcpdx]

IDK, I have an 18, but that sounds like a spacer issue.

 

[5ohcoyote]

IDK, I have an 18, but that sounds like a spacer issue.

That’s what I thought and whipple swore that wasn’t the issue

 

[crcpdx]

That’s what I thought and whipple swore that wasn’t the issue

You could try a bigger spacer and see what happens. I remember a thread where guys just played with different spacers until they found what worked. If you were going to upgrade anyway, you could go the gates/ griptech route?

 

[5ohcoyote]

*measured .375 and supposed to be .390. Just double checked.

 

[db252]

Definitely an alignment issue. Go through the manual and double check every pulley and idler install.

 

[AZ_whippleS550]

*measured .375 and supposed to be .390. Just double checked.

One of those pulleys is for sure off, later I will take a picture of mine and post here.

 

[Avispa]

Doesn't happen often, but it does happen, Whipple may not have pressed the drive hub correctly onto the blower drive shaft. It doesn't take much misalignment to shred belts. Have seen that once in a blue moon on water pumps.

 

[dbranger94]

Not sure if you installed OPGs or a lower crank timing sprocket, but you may check the balancer is all the way back if it's ever been removed. You should also use a ruler or yard stick to check that all the pulleys, especially the grooved ones, are in the same plane.

 

[5ohcoyote]

Yup pretty sure it was the balancer. I was about to order the gates laser to see which one was off, but it was pretty obvious. Guess the last shop didn’t torque it down all the way after fixing my timing issue. Appreciate the help guys!

 

[dbranger94]

Glad to hear you got it figured out.

 

[FastCarFanBoy]

Be glad it was shredding belts because that crank snout was probably not long for this world.

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