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Post by chehystpewpur on Aug 19, 2014 14:11:22 GMT -5
Ok so for the last few weeks my over range has been perfect but the other day that all changed. It was about time to replace the first belt on it due to it being a brand new over range. It started losing a little speed and wasn't holding rpms like they are designed to. Basically it was acting as a normal
variator the day I changed the belt.
When I opened it up I noticed some slack had appeared on the crankshaft and left maybe 1mm of wiggle room with the variator. I'm guessing the coatings and paint wore off and made the extra room. So long story short it shrunk over nite and now it doesn't work right. I found a washer to use for now to take up the extra slack on the shaft so its nice and tight now. But with the washer between the 2 halves of the variator it goes slow and with it on the outside on either side it goes slower. It actually goes slower than my stock variator and I'm pretty pissed about that in all honesty.
The rpms it locks at and holds on take off are only 200 rpm higher than before but yet I lost almost 10 mph overall and thats not normal. Does anybody have any ideas why it did that or if its common and only good for 1 week? Or is this pretty uncommon? I bought it under the impression that they dont normally have issues.
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Post by themajekalbum on Aug 19, 2014 21:13:09 GMT -5
I dont have a malossi OR unit but I know a washer between the variator and half pully wont allow them to close as far as without it there. Maybe try the washer on the outside of the half pully and make sure your not mashing the splines with the nut.
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Post by chehystpewpur on Aug 21, 2014 0:08:26 GMT -5
Well k figured out what the issue was with the top speed. The new belt that was a Bando like the old one wasn't stretched and couldn't ride as far up the variator I'm guessing. Looks like ill be buying another brand new belt and maybe someday the torque driver. Does anybody know a good belt size for the over range up front?I've been looking at the gates belt in the 798 Size
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Post by 2TDave on Aug 21, 2014 5:09:07 GMT -5
I'm working on the same issue with my Maloosi La Future Rosa OR. This is the newer 2013 Aluminum OR. I got a Malossi Kevlar 820mm belt that isn't long enough and ordered a longer 828mm that will be here today. Next for me would be 835mm. I'm not sure what OR or scoot you have but I'll let you know what I find out. This is for my RX8/Triton. Brent uses an 816mm on his original version OR on a Triton.
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Post by chehystpewpur on Aug 21, 2014 16:34:23 GMT -5
Hmm looks like I'm not the only one atleast lol. Do u have the or torque driver too or just the variator? What's your stock belt size? My over range is the 2005 one if I'm not mistaken. What kind of top speed are you getting on your bike?
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Post by 2TDave on Aug 21, 2014 17:50:38 GMT -5
I have the 2013 complete kit. Stock belt was 788 17 28. Just hit 68 still have 7.5 mm of travel left on the variator face I'm trying to workout. Just ran with a longer belt. Not sure what I was looking at the other day when I thought my belt wasn't long enough. It is at least to get me to 2 or 3 mm of left travel.
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Post by 90GTVert on Aug 21, 2014 19:59:44 GMT -5
816 may be too long unless you have a larger rear pulley. I tried the 816 with the OR vari and modified stock pulley and it was a dog off the line. The belt was so loose that it slipped on and off without having to compress the rear pulley once I took the fan off. The problem is without the long belt you just can't get the full speed potential out of the big front pulley. Have to compromise or find a larger rear pulley. Something like a 800mm long belt may be nice. I can tell you from personal experience, do not buy a Gates 798. I think it's 798 17 28, but can't recall 100% ATM. Anyway, I bought one and the stupid thing is shorter than a 788 Bando.
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Post by chehystpewpur on Aug 22, 2014 0:14:14 GMT -5
Thank you very much for that input. I'll look for around an 800 Bando with an emphasis on the under 800 side if one is close. And holy balls 68 with travel left? Do you have an upgear? I dont wanna go that fast lol 60 or just over is more than fine until I have a 0 miles engine. I trust mine but thats what scares me. 13k miles its bound to happen sooner or later.
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Post by 2TDave on Aug 22, 2014 5:34:48 GMT -5
The gears are the stock 10.13 ratio. The motor has a lot of work done to it. I wouldn't push a stock crank over 10.5 rpms for long. At those speeds I'm up above 12k.
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Post by chehystpewpur on Aug 22, 2014 8:15:51 GMT -5
Your lucky to have the 10:1 gears I got the 13:1 gears so I'm jealous. And trust me I dont go over 10k ever unless its an accident. Most of the time I keep it below 9k unless I have to. Mine sounds pretty upset past 9k.
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Post by 2TDave on Aug 22, 2014 9:15:35 GMT -5
Yeah our pipes make power at different rpms. Gear swaps are a cheap and easy mod for the gains to be had when you start with what you have.
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Post by chehystpewpur on Aug 22, 2014 9:25:38 GMT -5
I plan on a gear swap when I piece together a new motor but I ended up having to use this variator early cause my stock one didn't last long enough and the other stock one I bought was tiny.
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Post by chehystpewpur on Aug 25, 2014 9:31:38 GMT -5
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Post by chehystpewpur on Aug 25, 2014 21:33:53 GMT -5
Ok to add to my last post.
I have about 5mm left on the variator for travel checked with the sharpie test and digital calipers.
The gates belt had been wetted and stretched with a jack yeah I know crappy method but I figured it would still do it. After about an hour I got it to stretch to 805mm and it stayed so after a few days of driving and some wear it would theoretically perform better than the old belt that stretched. Top speed is back down as always so I'm thinking the worn down belt is sliding farther down into the torque driver and letting the front half farther up the variator. I made another sharpie line and marked in the 5mm left area and made the marks diff widths to identify if thats the cause of the lower top speed. Unless this belt breaks in I'm going to order a longer one on Friday most likely the longer one I linked because its a hair skinnier than the other and I should get full travel out of the variator no matter what.
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Post by 2TDave on Aug 26, 2014 4:45:36 GMT -5
I found that my rear pulley wasn't able to open all the way with the torque spring that came with the OR or the Kombat springs I ordered. It's difficult to do but if you squeeze and pull on the belt to get it to slide down the pulley see if it makes it to the bottom where the angle stop and become straight. The if you can keep it there you can slide the variator out and see where the belt would be riding on the front pulleys. Like I said it's a pain but I found I didn't need a longer belt. The spring was tight and stacking up on itself not allowing the pulley to open fully.
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