PirateLabs
Scoot Enthusiast
Posts: 296
Location: Bowling Green, KY
|
Post by PirateLabs on Jul 20, 2018 9:20:30 GMT -5
Well, boy howdy. Check the table below. ~40 ft/lb as noted... Newton-meters to Foot-pounds table Newton-meters Foot-pounds 50 Nm 36.88 ft-lb 51 Nm 37.62 ft-lb 52 Nm 38.35 ft-lb 53 Nm 39.09 ft-lb Guess 40 ft-lb was a little bit too much, but who can come exactly to 36.88? tom ADDed: I just went looking for a variator holder as the one linked. They sure want a lot for a small chunk of metal with zero machining. Surprisingly, the ebay listing was the most affordable of all those I found. Even aliexpress was higher. There is a tool that shows on youtube that you more or less jam into the CVT, top left corner, that links to the starter gear teeth. The inventor(I think) posted his video on his 'invention' and failed to give a link to a source. I think the USA made product is better and maybe more affordable, FWIW. I saw that video many years ago and searched everywhere but all links were long dead and I suppose he is no longer making them it seems. I only paid like $10 with free shipping for mine from ebay from a different source than the link I posted but I got it a long time ago. It is very handy, light to carry, and makes a very solid holding tool. With nothing but hand tools I can swap one out in 20 minutes. Bill
|
|
|
Post by tocoo on Jul 20, 2018 10:31:35 GMT -5
for the clutch, there is also a tool by BUZZETTI which can unlock the the 38mm nut too
|
|
|
Post by tocoo on Jul 20, 2018 10:35:49 GMT -5
I ordered the corded wrench and a set of 33g rollers. I hope I will be able to remove the clutch and clean it
|
|
PirateLabs
Scoot Enthusiast
Posts: 296
Location: Bowling Green, KY
|
Post by PirateLabs on Jul 20, 2018 11:08:20 GMT -5
I have an H.F. corded impact but it puts out about 275 ft. pounds of torque. I used it a few times to remove my nuts but never to put them on. Be careful you do not strip your crankshaft or axle shaft. I use a torque wrench set to 30 if I am at home and on the road I just use my socket wrench.
Bill
|
|
|
Post by tocoo on Jul 21, 2018 10:25:38 GMT -5
Yes I plan on putting the nut back with the 12V impact driver or even manually. This morning I installed the new rollers, 33g compared to the 31g for the ones from the mechanics. This morning there was minimal scratching sound, but this afternoon, it came back. I managed to do a better video, because I film only during an acceleration from standstill. www110.zippyshare.com/v/q9Z5yyO1/file.htmlThe scratching is clearly audible.
|
|
|
Post by tocoo on Jul 24, 2018 2:34:04 GMT -5
I just received my corded impact driver and I removed the nut. I fail to remove the 38mm nut because my cheap wrench rips on the nut. I guess I will buy a 38mm socket. In the meantime, I took a picture of the 3 abrasive parts. THere is glass on them. IS it worth cleaning or I change the whole clutch ? I ask because I do not want to spend much on this and the 38mm socket is already 15 euros. if I change the whole clutch I would not buy this 38mm socket. For the cleaning, I have sand paper of various grades and I have a dremel with ''green'' and ''pink'' abrasive bits. Which grade or color should I use ? this is after 5500 km and it is the original clutch.
|
|
|
Post by tocoo on Jul 24, 2018 2:34:31 GMT -5
I forgot to ask if this glassing could be the cause of the scratching sound.
|
|
|
Post by tocoo on Jul 24, 2018 4:37:57 GMT -5
|
|
|
Post by AtariGuy on Jul 25, 2018 2:42:10 GMT -5
The glassing you mention is a pretty common occurance on clutches and you can use some 220 grit sand paper and scuff it up by hand. The pads are specifically weighted in balance so DO NOT use a dremel tool to take the glassing off. Also scuffing the inside of the clutch bell is a good idea too. The pads and the bell rely on friction to send engine power to the wheel, so the easier it is for the pads to grab the bell, the better your takeoff.
And that definitely looks like the cause of the grinding sound
|
|
|
Post by tocoo on Jul 25, 2018 3:25:37 GMT -5
Before reading your message, I have just read this about removing this glazing. I will not touch the belt, since it is new . from here modernvespa.com/forum/wiki-faq-shudderApparently, I also need to change my behavior on the scooter. I use my scooter in a city and I used to take off gently, instead of opening the throttle more widely.
|
|
|
Post by tocoo on Jul 25, 2018 5:49:21 GMT -5
So I cleaned my pads like that. I use grade 150 for the inner of the bell. I used grade 120 for the pads. THen I used the scooter and at first it did the noise at acceleration and at top speed. THen I braked a few time with the front wheel mostly from above 6000 RPM and now it seems the noise stops at top speed, but it is still here during an acceleration. Lately, the air whas been hot, like 30C and I just measured the temp of the CVT cover: 55deg C at the front and 44 deg C at the back. I think that I will clean the air filter at the front of the cover, and perhaps even remove it. Also, lately I used mainly the rear brake to stop and as said, I used mostly very dull starts and slow top speed, like 40km'h in order to watch the landscape. THe rmps go even less high with those new 5,5g rollers, so I will put back the 5g rollers in order to reach the 8000 RPMs. I also decrease my idle a bit This is how the pads are after this short trip all the black is back.... Since I ordered the 38mm socket, I will be able to clean the clutch soon
|
|
|
Post by tocoo on Jul 25, 2018 6:38:01 GMT -5
I also notice that the belt has a wear where the white line disappears
|
|
|
Post by tocoo on Jul 28, 2018 11:16:44 GMT -5
I put back the 5g rollers and I removed my wind shield. I forgot how fast the acceleration was. I was ''gunning it'' at each stop but the crackling sound remains. I think i do 0--30mph in 12s. As a side note, I manage to forgot to lock the 17mm nut of the variator and it nearly came off. When I was at WOT, suddenly there was a huge sound like form a giant saw in the street. I feared the belt burst. I cut the engine and went back on foot. 2 of the wings of the white plastic fan are borken. i do not understand how it happens, since the nut was not removed from the axis, it was only unscrwed. There was no debris in the CVT cover. I ordered and received this socket, but it is slightly too small for my nut. www.amazon.co.uk/KING-TONY-433538M-6-Point-Socket/dp/B00INW1PPG/I am confused since it is advertised as 38mm. Would i need a 39mm socket or do I get a weird 38mm nut ? THe inner width of the socket is 38,38mm and the outer width of the nut is 38,6mm.
|
|
|
Post by tocoo on Jul 31, 2018 0:55:39 GMT -5
I ordered a 39mm socket
and I tried to ride the scooter again : it was fine and the friction noise is still here, but the belt started to make the horrible noise again. THis time, no nut was loose on their axis, so I have no idea why. For this ride, i started the scooter with the kick, instead of the battery.
|
|
|
Post by jbjhillbilly on Aug 1, 2018 1:26:37 GMT -5
The reason the 38mm socket didn’t fit is the nut got boogered by your other wrench. That caused the metal to flow into an odd shape that is no longer the correct size for the socket.
|
|