KilroyCD
Active Member
Hal, that could well be the case. both belts are made by the same maker, and are of only middlin' quality. It would behoove you to replace both belts.
The Incredible SHREIKING Whizzer:
- Thread starter Hal the Elder
- Start date
Hal, that could well be the case. both belts are made by the same maker, and are of only middlin' quality. It would behoove you to replace both belts.
Hal the Elder
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Belt Source?
OK, KILROY...
...are these belts that can be found at Pep Boys, or are they Whizzer-Specific at about $600 each?
HAL
OK, KILROY...
...are these belts that can be found at Pep Boys, or are they Whizzer-Specific at about $600 each?
HAL
KilroyCD
Active Member
Nope, not Whizzer specific or expensive. They can be found at auto parts stores. I'm not sure if Pep Boys sell Gates, but they can be found at a lot of independent auto parts stores. Here's the Gates retailer locator: http://www.gates.com/automotive/distributors/index.cfm?location_id=539
Hi Hal,
I am having a sale on Whizzer OEM belts. 1/2 price only $150.00 each [LOL].
Use an AX27 front belt. The AX number isn't the length, but is always 2 numbers different than the actual size. For example the "notched" AX27 [gates part number 90122027] replaces the 4L290, both are 29" belts. Let us know what you find.
Have fun,
I am having a sale on Whizzer OEM belts. 1/2 price only $150.00 each [LOL].
Use an AX27 front belt. The AX number isn't the length, but is always 2 numbers different than the actual size. For example the "notched" AX27 [gates part number 90122027] replaces the 4L290, both are 29" belts. Let us know what you find.
Have fun,
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Hal the Elder
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Thanks, Yorlik!
There's a Gates retailer not far from me, in the next town.
My rear belt is an AX-62, and it's NOT a Gates!
LAH
There's a Gates retailer not far from me, in the next town.
My rear belt is an AX-62, and it's NOT a Gates!
LAH
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AX Belts
You can sometimes find AX series belts at auto supplies (NAPA), but more often at industrial bearing supply houses. The AX-27 belt is an industrial heavy duty belt where "A" refers to the cross-section (1/2" x 5/16"), X refers to a notched belt rather than a solid belt (A27 would be unnotched), and 27 is the length of the belts inner circle in inches. This differs from automotive belts and L series belts that are more often measured by the length of their outer circle. Strange how the automotive and industrial businesses measure belts differently. See the following link for belt sizes, types, and nomenclature.
http://www.mibelting.com/indbelt.htm
If you don't have local vendor conveniently located you can find any industrial belt at McMaster-Carr.
http://www.mcmaster.com/ and type "AX v-belts" in the "Find Products" search box
Regarding your slippage issue, if the sheaves and belt are clean and free of oil, it is most likely the clutch output pulley that is slipping, as you would never slip the belt on the large rear wheel sheave due to the huge amount of wrap it has there. Better tighten that rear belt a bit more and try it again. Also be sure you maintain a nice balance between the front and rear belt tension, as tightening the rear can loosen the front.
You can sometimes find AX series belts at auto supplies (NAPA), but more often at industrial bearing supply houses. The AX-27 belt is an industrial heavy duty belt where "A" refers to the cross-section (1/2" x 5/16"), X refers to a notched belt rather than a solid belt (A27 would be unnotched), and 27 is the length of the belts inner circle in inches. This differs from automotive belts and L series belts that are more often measured by the length of their outer circle. Strange how the automotive and industrial businesses measure belts differently. See the following link for belt sizes, types, and nomenclature.
http://www.mibelting.com/indbelt.htm
If you don't have local vendor conveniently located you can find any industrial belt at McMaster-Carr.
http://www.mcmaster.com/ and type "AX v-belts" in the "Find Products" search box
Regarding your slippage issue, if the sheaves and belt are clean and free of oil, it is most likely the clutch output pulley that is slipping, as you would never slip the belt on the large rear wheel sheave due to the huge amount of wrap it has there. Better tighten that rear belt a bit more and try it again. Also be sure you maintain a nice balance between the front and rear belt tension, as tightening the rear can loosen the front.
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Hal the Elder
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Tightening the Rear Belt:
HEY WZ507:
Do I loosen the rear axle nuts and yank the wheel rearward?
(This would affect the rear brake adjustment too...)
Thanks...
HAL
HEY WZ507:
Do I loosen the rear axle nuts and yank the wheel rearward?
(This would affect the rear brake adjustment too...)
Thanks...
HAL
KilroyCD
Active Member
Hal, WZ507 has a point. I'm inclined to think it's the flywheel to clutch belt that's squealing, especially if the sheave is slightly off-center (as it is on mine). The belt is probably causing the clutch to move in unison with the sheave. The only pulley that is not able to move with the undulation of the sheave is the flywheel pulley, and that is probably where the squeal comes from each time the sheave comes to its foremost position during the rotation of the wheel. This causes the clutch to move on its arm and relaxes some of the tension on the belt leading to the flywheel pulley.
Hal the Elder
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That's A Plausible Diagnostic Assessment, But...
...what do I do now?
I'm all ears!
HAL
...what do I do now?
I'm all ears!
HAL
KilroyCD
Active Member
Make sure your rear belt is as tight as you can make it, and replace the front belt with a Gates AX27. You may have to take the belt off the sheave, then move the axle back very slightly in the dropouts. Tighten everything back up and roll the belt back on.
