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Post by dexameth on Nov 5, 2017 6:17:00 GMT -5
So instead of the usual Gates 729 belt I usually purchase, I decided to try the Glixal belt from Amazon since I was purchasing other stuff from them anyway. At first look, the belt looks and feels nice! But, something is up. After it is installed, it sits WAY too deep in the clutch. Makes take off stupid slow, until 15mph then it's almost normal. The belt is so low in the clutch, the clutch is spinning faster and it is just at the point of the clutch engaging, so as soon as I touch the throttle it grabs and chugs along trying to get going. No variation... I swapped to the longer, stock drive boss in the variator and it allowed more revs before the clutch engaged. A little better on take off, still slow. I even noticed the clutch fully opened and not even at max speed yet. With both of these set ups, RPMs were screaming, way higher than they were and I was thinking it was the preload on the contra spring. I added my heaviest sliders I had, 7g all around and way heavier than I ever run, same high RPMs. I swapped to a stock spring and it was almost back to normal driving conditions. Take off was kinda better, letting it fall into high gear a little better but not sacrificing RPMs too much. One big issue: no wheelies! With any of these set ups I have not been able to hold wheelies; total loss of torque. I took everything off, and reinstalled the previous set up: Thinner belt measuring 16.8mm 1.5k Contra 5.8/6.8g slider mix Short variator boss Scootie is a rocket again! RPMs were way smoother, wheelies were effortless again. Hit 50mph easy peasy. My last Gates belt was 729x17.7x30 New Glixal belt is 729x17.7x30 What am I missing? Pic shows one side belts are flush, the other is the difference. 3rd pic is after install, start and idle, and shut off this is where it sat.    |
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Post by 90GTVert on Nov 5, 2017 6:56:47 GMT -5
Where does the belt sit in the rear pulley if you leave the fixed half off of the front so it can sit against the drive boss? If it's not on the outer edge, the belt could be too short. I once bought a Gates belt that was a 798 to replace a 788 Bando and the Gates was actually shorter. If big companies have those discrepancies, I'm sure it happens with the smaller ones.
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Post by dexameth on Nov 5, 2017 7:16:38 GMT -5
I think I remember the belt being right on the boss, when the front pulley half was removed. When I pull the variator face off, it didnt rest any higher in the clutch. I just measured it compared to a Gates by wrapping a non-stretching shoelace around the outside of each belt and they were 1mm off, and my guess is not a perfect wrap of the lace leads to the misreading. So same size. My first guess was this was mislabelled.
I just noticed... the Gates is labelled 17.5 wide. .2mm shouldn't drop that much at 30 degrees right?
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Post by 90GTVert on Nov 5, 2017 7:37:12 GMT -5
17.7 to 17.5mm should be basically negligible. If the other belt is the same length and only .2mm off and it sits to the center up front and outer edge on the rear pulley, I don't know why this one would be so far off. Looks like more than .2mm off, especially in the second pic. Even if it was too wide though, if it were sitting at the drive boss up front it shouldn't cause it to sit low out back. A wide belt would be less likely to sit in the more narrow section of the rear pulley at rest. My first thought would be to double check where the belts sit up front with the fixed half both on and off and how it changes where the belt rides in the rear pulley.
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Post by dexameth on Nov 5, 2017 7:39:41 GMT -5
Yeah, I'm going to reinstall it after work tonight and see exactly where it sits in the vatiator. The first picture showed the wear in worn belt and the new Glixal. That worn belt measured 16.8mm. Almost a full millimeter.
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Post by dexameth on Nov 5, 2017 7:49:47 GMT -5
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Post by 90GTVert on Nov 5, 2017 14:32:57 GMT -5
Looks like one more reason to steer clear of cheap belts to me. Maybe Gixal aren't monetarily cheap (I haven't checked), but I go with Bando, Malossi, and Gates if those aren't available.
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Post by lostforawhile on Nov 5, 2017 15:05:23 GMT -5
Looks like one more reason to steer clear of cheap belts to me. Maybe Gixal aren't monetarily cheap (I haven't checked), but I go with Bando, Malossi, and Gates if those aren't available. Everything Glixal is cheap, They seem to have found a way to manufacture chinese parts even cheaper |
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Post by dexameth on Nov 5, 2017 15:28:27 GMT -5
Haha Ohhh I know. I wanted to see what the quality was of this one, at 10 bucks I should have just known. Yeah, 10 bucks on Amazon. But hey, my Gates are only 12 bucks.
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Post by lostforawhile on Nov 5, 2017 19:08:03 GMT -5
Haha Ohhh I know. I wanted to see what the quality was of this one, at 10 bucks I should have just known. Yeah, 10 bucks on Amazon. But hey, my Gates are only 12 bucks. are you sure that's a real gates belt? the powerlink belt, is the one you want, and it runs around 30 bucks on average, but you won't have to change it for a long time, these belts run in oven like temperatures, the powerlink belts are designed for that |
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Post by FrankenMech on Nov 6, 2017 0:30:54 GMT -5
Some belts are cut with different angles for various applications, like Comet drives. Whenever you buy a belt visually check it's parameters before installation so you can send it back if necessary.
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Post by dexameth on Nov 6, 2017 6:38:12 GMT -5
Haha Ohhh I know. I wanted to see what the quality was of this one, at 10 bucks I should have just known. Yeah, 10 bucks on Amazon. But hey, my Gates are only 12 bucks. are you sure that's a real gates belt? the powerlink belt, is the one you want, and it runs around 30 bucks on average, but you won't have to change it for a long time, these belts run in oven like temperatures, the powerlink belts are designed for that Yup, Gates Powerlink. All I've purchased aftermarket other than this one Glixal. They last forever, you're right. |
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Post by dexameth on Nov 6, 2017 6:39:11 GMT -5
Some belts are cut with different angles for various applications, like Comet drives. Whenever you buy a belt visually check it's parameters before installation so you can send it back if necessary. This one was marketed and sold for the long case qmb139 motor. Should have 30 degree on both sides. |
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Post by FrankenMech on Nov 6, 2017 22:01:35 GMT -5
Stuff gets misplaced, mismarked, mismarketed, misapplied, misused, etc all the time. You are your own QC inspector.
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Post by lostforawhile on Nov 6, 2017 23:57:55 GMT -5
that's a good price on a powerlink, Orilies here wanted 40, but discounted it to 30, from searching online they seem to run between 25 and 40 ,so that's about in the middle
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