CY50 T3 Trial and Error

90GTVert
Administrator

Posts: 41,609

Location: Preston, MD

CY50 T3 Trial and Error Aug 13, 2013 19:09:41 GMT -5

Quote

Post by 90GTVert on Aug 13, 2013 19:09:41 GMT -5

The contra spring is between the clutch and rear pulley. It's not supposed to move the clutch anywhere. It applies pressure to the moving half of the rear pulley to resist opening in contrast to the roller weights as they try to push the front pulley together.

If you're having trouble with assembly or disassembly of about anything in the CVT it should be covered HERE.

Brent
Life is better at high RPM.

toslowtogo Scoot Member Posts: 78	CY50 T3 Trial and Error Aug 13, 2013 19:19:57 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by toslowtogo on Aug 13, 2013 19:19:57 GMT -5 Thanks

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Aug 15, 2013 22:04:47 GMT -5

Quote

Post by toslowtogo on Aug 15, 2013 22:04:47 GMT -5

Old wheels and tires are sold. So I guess a bushing will be made. Waiting on somethings. Case 1/2. Broke out the gun and shot one small pnl. Shooting the rust with rust ender then I will shoot a gloss black epoxy. Gotta pull the forks. Ordered some special parts. A variator holder, something else. Going with 8 AWG silver plated battery wires.Engine build lube, permatex Aviation gasket stuff. On anything that doesn't have pressure you can use thread and permatex. Worked for Teledyne built a few cases that way. Bought some duplicolor Cany Apple Red. It is lacquer though. Works on Vettes. If it cracks sand down and start over. Ordered another bendix. The one on it wobbled. Oh valve spring tool hate looking for keepers.I can get a tire changer and balancer for less than 100.00. Any suggestions for rear shocks? There isn't a shop here for scooters. Did get the flex additive. Some say put just in the primer others say put it in all.

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Aug 25, 2013 7:27:11 GMT -5

Quote

Post by toslowtogo on Aug 25, 2013 7:27:11 GMT -5

Just an update. Started to fix my pnls. Stop drill cracks. Was going to a resin build up. I have some epoxy mixed with aluminum. Going to try it. Found a lot of rust on the frame. Sanding and shooting rust restorer on the frame. Then will shoot gloss epoxy. Found this. Will pay for itself in one setting. I have 4 tires to pull and 2 to install.
www.northerntool.com/shop/tools/product_13610_13610?cm_mmc=Google-pla-_-Auto%20Repair-_-Tire%20Equipment-_-13473&ci_src=17588969&ci_sku=13473&gclid=CLLXhePLmLkCFcuf4Aody10A3g

Last Edit: Aug 25, 2013 10:50:50 GMT -5 by 90GTVert

90GTVert Administrator Posts: 41,609 Location: Preston, MD	CY50 T3 Trial and Error Aug 25, 2013 10:55:05 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 90GTVert on Aug 25, 2013 10:55:05 GMT -5 Let us know how it turns out and how you like the new tool.
	Brent Life is better at high RPM.

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Aug 28, 2013 7:12:20 GMT -5

Quote

Post by toslowtogo on Aug 28, 2013 7:12:20 GMT -5

Aug 13, 2013 19:09:41 GMT -5 90GTVert said:

The contra spring is between the clutch and rear pulley. It's not supposed to move the clutch anywhere. It applies pressure to the moving half of the rear pulley to resist opening in contrast to the roller weights as they try to push the front pulley together.

If you're having trouble with assembly or disassembly of about anything in the CVT it should be covered HERE.

My socket is a 40 mm for the clutch. I should have measured. Just letting you know.

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Sept 3, 2013 6:37:23 GMT -5

Quote

Post by toslowtogo on Sept 3, 2013 6:37:23 GMT -5

Start putting engine back together today. Hope to be riding this weekend.Cleaning corrosion on the case. Will paint with epoxy. We did a test of Cyl. Head temps painted and bare. It was only 2 or 3 degrees increase. Went to a 95 jet. Plug was very white when I pulled it. If you buy a bigger cyl. make sure you are getting the one with bigger valves.Did get a long case half. 70.00. Now to get a swing arm for it. Did find an obscure sight. I talked to them about a discount. I'll post it hold on. Stuff like this.
www.mxmotoparts.com/high-performance-single-piston-brake-caliper-for-dirt-bike-roa-p-115.html
Been adding to the list for an order from these guys. 20.00 for the this brake caliper. Been painting pnls seperate. Think I'm going riding. LOL I hate corrosion. Found another shaft with it. It isn't easy to stop corrosion on steel.Found a lot of corrosion on the welds. I sanded them down and shot them with rust restore as the primer then I shot epoxy paint.

Last Edit: Sept 3, 2013 6:40:38 GMT -5 by toslowtogo

toslowtogo Scoot Member Posts: 78	CY50 T3 Trial and Error Sept 6, 2013 19:57:04 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by toslowtogo on Sept 6, 2013 19:57:04 GMT -5 Today I pulled the nut off the clutch. It is still sitting there together with no nut. It is frozen. Even with an impact I can't get the front pulley off. The nut is frozen onto the shaft.

toslowtogo Scoot Member Posts: 78	CY50 T3 Trial and Error Sept 7, 2013 7:25:57 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by toslowtogo on Sept 7, 2013 7:25:57 GMT -5 Ok Got it partially apart. Used Teflon spray. Can't find my Mouse Milk. Using hair dryer to heat it up to loosen on the bottom cup of the spring. Will see how that works. Lot of corrosion.

toslowtogo Scoot Member Posts: 78	CY50 T3 Trial and Error Sept 7, 2013 8:10:11 GMT -5 90GTVert likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by toslowtogo on Sept 7, 2013 8:10:11 GMT -5 Wear on inside where the pins ride against the lower spring cup. Hoping by repositioning the cup. Will have a different wear spot. Am using a rust converter. To try and help.

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Sept 24, 2013 10:39:30 GMT -5

Quote

Post by toslowtogo on Sept 24, 2013 10:39:30 GMT -5

I have heated the variator nut with a small torch. Everything. Need a second person to hold the case down. Impact isn't touching it at all. Ordered a holder. I go back and forth. Gotta try the tire install again. I really would like the bigger tires. We shall see where I go from here. LOL

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Oct 9, 2013 20:47:08 GMT -5

Quote

Post by toslowtogo on Oct 9, 2013 20:47:08 GMT -5

Small tire changer needs two people. About to mod CVT cover.Used Loctite C%-A high temp lube on the clutch. Will use it on gears also. On your builds do you use assembly lube? We use to use lubri plate. Tried permatex this time. Use it on cam lobes, piston pin, rocker arms. Helps to lube on start up.Metal to metal isn't good.

toslowtogo
Scoot Member

Posts: 78

CY50 T3 Trial and Error Nov 5, 2013 8:57:06 GMT -5

Quote

Post by toslowtogo on Nov 5, 2013 8:57:06 GMT -5

Had to cut nut on the variator. Lost very little thread area. I have tried to collapse the clutch spring to get the belt on. My hands aren't strong enough. Put the larger tire on the original rim. Anyone have any ideas how to rig something to collapse and split the pulley? Have leak checked everything. About ready to hang the engine. Once that is done. Will run w/o ignition hooked up. Make sure everything is kosher.

90GTVert Administrator Posts: 41,609 Location: Preston, MD	CY50 T3 Trial and Error Nov 5, 2013 10:32:39 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 90GTVert on Nov 5, 2013 10:32:39 GMT -5 Try taking the rear pulley off so it's easier and open it and put the belt in there, then install it.
	Brent Life is better at high RPM.

toslowtogo Scoot Member Posts: 78	CY50 T3 Trial and Error Nov 6, 2013 9:23:41 GMT -5 toslowtogo likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by toslowtogo on Nov 6, 2013 9:23:41 GMT -5 I tried that. The engine is on the bench. I have a Y clamp I'm going to try.