Belt install help!

Took my supercharger belt off the other day to swap on a new belt. It came off easy as I removed the pulley bolts. Is there a trick in getting this belt back on now with the pulley installed? I am sure that the tensioner is down all the way with the 1/2” drive. I even went under the car and tried putting more tension and seems like the tensioner is at its max. So the 2 of us could not get this belt back on.

Any help is appreciated.

Did u verify that u received the correct belt?

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Sounds like your belt is too short.

rymax101 said:

Did u verify that u received the correct belt?

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01yellercobra said:

Sounds like your belt is too short.

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The new belt is the same belt. Same product number and size (I measured both). Both will not go on. Not sure what is going on LOL

If nothing changed and the belt is the same size, it should go on. I knocked the stop tab off the top of the tensioner with a chisel, to get a little more travel out of the tensioner arm. I did this about 17 years ago and it's still going strong.

Sounds like routing is off

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Sounds like whoever put it on played the too tight game. They probably removed one of the idlers (I think the snub idler is the go to for this), put the belt on, then with the tensioner maxed squeezed the idler back into place.

I'm not a fan of that as over tight belts cause issues with bearings and such. I'd double check your set up with some of the belt charts available online.

Please specify if you are running a stock blower pulley or aftermarket one. Also are you running an aftermarket auxiliary idler?

If the answer is yes to that auxiliary idler, remove that idler pulley, then put the belt on. Now with the breaker bar on the belt tensioner take the tension off the belt and slide the auxiliary idler in place.

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Bdubbs said:

Please specify if you are running a stock blower pulley or aftermarket one. Also are you running an aftermarket auxiliary idler?

If the answer is yes to that auxiliary idler, remove that idler pulley, then put the belt on. Now with the breaker bar on the belt tensioner take the tension off the belt and slide the auxiliary idler in place.

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Bingo! I didn’t even think about the auxiliary idler. It’s a Whipple with a 3” upper pulley and I do have the auxiliary idler. I will try this method. Thank you!

Brady nailed it. That recommended method has been used by lots of folks over the years. That said, with the "correct" belt size you should still be able to get the belt on using a breaker bar. I installed two belts that way back in the day, by myself, and I had a 4-piece idler set (with auxiliary). It was not difficult at all.

My belt is always tough to get on. I have the snub idler; however, I have never had to remove it. I may try that next time. I end slipping it on the stock idler last since it’s smooth and has a curvature to it. It’s not easy but definitely doable.

As Bdubbs stated above, removing the snub/aux idler is the trick. Made it very easy.

2003RedfireVert said:

My belt is always tough to get on. I have the snub idler; however, I have never had to remove it. I may try that next time. I end slipping it on the stock idler last since it’s smooth and has a curvature to it. It’s not easy but definitely doable.

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