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Post by toddmaples on Sept 13, 2014 15:28:15 GMT -5
Ok guys, pulled my CVT apart today to install the HOCA performance kit from partsforscooters.com.
Rear clutch assembly went smooth, liked the ball bearing bushing they provided. far cry from the stock stamped metal one.
Variator assembly went pretty smooth, lubed with graphite, installed.
With the CVT cover off I cranked it over to make sure everything was functioning properly.
Reved it once, belt rode up in the front, down in the back, RPMS dropped belt returned to original position.
Reved it the second time, and the nut, washer, weights, glidekeys, whole nine yards spin right off/out and go flying...
Nothings permanently damaged (thank goodness).
Any ideal what could cause this? I impacted both nuts on there pretty good, about a second after 0-turn.
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Post by toddmaples on Sept 13, 2014 16:33:23 GMT -5
Okay guys and gals, got it figured out. This is one of those quirks of these chinese scooters. Bike: Taotao Lancer 150 Limited Edition Engine code: 157QMJ Quirk: Hoca 115mm Variator kit comes with its own bushing, DO NOT USE THIS BUSHING ON THIS BIKE! As you can see, the one that come with the kit is quite a bit shorter than the stock one. Also, the ID(inner diameter) is different. Easy fix, just use the old bushing as the OD(outter diameter) is the same.
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Post by ital on Sept 13, 2014 20:44:33 GMT -5
Interesting. I used the same kit on mine scooter and my belt shredded after a couple of hundreds of miles. I actually compare the bushings and they appeared Identical perhaps one was slightly thicker. Now I am thinking that perhaps I should have used the stock one.
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Freshman Rider
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Posts: 65
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Post by bashan on Sept 13, 2014 21:02:34 GMT -5
That is called a boss, I don't know why. The purpose of the shorter boss is to force the belt out farther on the pulley and give you a higher top gear ratio. Some guys actually cut the boss down to shorten it (Alley's pic):
However, the diameter of the boss MUST match the inner pulley or disaster awaits.
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Post by rockynv on Sept 14, 2014 1:04:23 GMT -5
The person who bought my Hoca equipped Lance has not had to change anything on the bike since he drove off with it 3.5 years ago however I did verify everything seated before I buttoned it all up and used a real Gates Aramid belt. Used a holder and a torque wrench to tighten everything to spec. My impact wrench is rated at 625 pounds of torque so it is not used to put anything back on except truck tires.
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Post by toddmaples on Sept 14, 2014 12:45:49 GMT -5
Well the problem with the performance bushing, er boss, was that the end of it actually was behind the splines on my crank shaft, not allowing the outer drive face to seat where its supposed to, luckily I didn't mar the splines on the performance face when doing this install.
On a side note, the chrome with this kit looks excellent with the chrome vented belt cover.
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