|
|
Post by teknoyd on Sept 20, 2009 11:28:27 GMT -5
I know it's probably here somewhere, but I've done several searches and haven't come up with anything.
I'm taking mine apart again and I don't want to just "shade tree" it again.
I haven't had any problems but I just sleep better when I know it's done right!
Thanks,
- Tek
|
|
|
|
Post by maxximtl on Sept 20, 2009 12:04:24 GMT -5
I'm not sure how you'd immobilize the variator to get a correct torque......it just wants to spin.
|
|
|
|
Post by wf1761 on Sept 20, 2009 12:11:31 GMT -5
You need a holding tool to keep it from spinning. Sorry I can't help you on that part.
|
|
|
|
Post by WildMan on Sept 20, 2009 13:28:00 GMT -5
Yo,
I beg to differ w/ you guys, if you're going to give info, give good info.. The variator nut for a 150cc is 12mm & is torqued to 36 Ft Lbs..
teknoyd,
Torque to 36 Ft Lbs, thats from service manual & that's what I torque all 3 of my scoots at..
|
|
|
|
Post by boogernose on Sept 20, 2009 14:31:12 GMT -5
Here are the torque specs for bolt sizes I do mine to 70 lbs and if you use the impact from walmart cost like 29 bucks it is setable up 250 lbs and you dont need a tool to hold the variator with that impact because of the way it works. it spins up that raps the nut ,spin up the rap and will stop at the torque you have it set to no guess work needed plus its 12 volt mine has served me very very well Attachments:
|
|
|
|
Post by teknoyd on Sept 20, 2009 15:31:28 GMT -5
Thanks guys. I had heard 70, but I read in a manual that I found online that it is 40 but that is measured in Newton Meters. The conversion for that is 29.5 Foot pounds. All of that left me confused!
I'm still confused, but at least I know that somewhere between 30 and 70 pounds seems to work!
Again, thanks,
- Tek
|
|
|
|
Post by usfmarine on Sept 20, 2009 16:38:09 GMT -5
teknoyd,
I use my 12v Harbor Freight cheapie impact wrench at full strength. I believe it is 150 ft/lbs. Who knows how much power is actually going into it. It takes 3 spin ups and taps before the nut goes on all the way.
I must say, even after using my crappy impact wrench on high, my variator nut still spun off a few times. So the last time, I nailed that thing a few more times with the impact wrench, then put some removable thread locker on it. It holds now.
|
|
|
|
Post by WildMan on Sept 20, 2009 16:38:20 GMT -5
teknoyd
36 Ft Lbs is tight but isn't overly tight. It doesn't need to be more then 35 - 40 Ft Lbs because the thread is a right hand thread & vatiator is a counter clockwise rotation. So variator is turning against thread direction, so it won't come lose unless you neglect tightening it at all.. 70 FT Lbs is extreme and at risk of stretching or stripping threads on crank.
|
|
|
|
Post by trigger on Sept 20, 2009 18:33:03 GMT -5
I know you are serious about getting it right, but this is just a tough one to answer. Like others have stated it moves, making accurate reading hard. I choose to put some medium strength thread locker on it, and then hit it with my Snap-On IM6500 HP at setting number 2 of five. It has never come off after 10K miles. So I use somewhere from 50 to 575 ft lbs on mine.  |
|
|
|
Post by anhoa on Sept 20, 2009 19:01:31 GMT -5
I measured the torque on OEM 17mm variator nut on mine before I even open it to change the roller weights. I got to 70ft/pd. So after I replaced the roller weights, I torque back 70ft/pd and still running fine without lock-tite after 300+ miles.
Anhoa
|
|
|
|
Post by kz1000st on Sept 20, 2009 19:15:04 GMT -5
Last Spring this was discussed and the setting everybody settled on was 40-45 lb. ft.
|
|
|
|
Post by teknoyd on Sept 20, 2009 22:38:07 GMT -5
So I use somewhere from 50 to 575 ft lbs on mine. Well that sure gives me some margin for error... Ha! I guess I'll go with around 40 - 45 and some loctite to be sure. Maybe that's the trick! - Tek |
|
|
|
Post by teknoyd on Sept 20, 2009 22:41:08 GMT -5
By the way, Harbor Freight has their $90 1/2 inch electric impact wrench on sale for 42.99 through tomorrow (2009 09 21)
|
|
|
|
Post by mgreenfield on Sept 21, 2009 11:45:41 GMT -5
I have no spiffy air-impact-torque wrench, so use this system. Before I remove the nut, I mark both the nut and shaft with a line I can use to turn the nut to the same position on the shaft when I replace it.
When I replace the nut, I turn it til the marks line up. This usually feels pretty tight. Then I go about 1/32nd of a turn tighter to adjust for wear/stretching of the threads. No thread lock or similar.
Most of the time, this nut will be removed/replaced just a couple times in the entire life of a scooter, so I see no problems with this simple system.
|
|
