Rear Axle pushing out swing arm -- weird Sh*t By methogod (Read 584 times)

[methogod]

Gy6 150CC Roketa MC-04 2010



My brother was about to ride off and we noticed the swing arm was bent away from the rear wheel.

So now out of nowhere the rear wheel nut must have come off at speed, causing the rear tire to sway, pushing the swing plate/arm (where the muffler is mounted) to walk itself out on the threads of the rear axle. Oddest thing I have ever seen.

The rear wheel had some wobble always thought it was off a bit, but not enough to do this.

So we took it apart, bent the swing arm back into shape, cleaned the bearings out all on the exhaust side. nothing inside transmission, except to check the belt and clutch was intact.

Took off the wheel checked the splines. Everything looked ok, so we...

Got a new rear axle nut, tightened as specified.

Tested on stand, and it did the same thing. Walked right off bending the swing arm again.

I am a little weary about replacing everything to find out it’s a bent wheel.
Have you ever seen or heard of this…

This is really the bike that just doesn't want to run well...


How can i tell if its the wheel pushing out, bearings, or the final drive axle. I feel less then happy about taking apart the transmission but not that treads are shot.

Suggestions, need pictures? i can get some video in the AM.

Was going to start to pull it apart later this week. To make sure we dont get any wrong parts online or locally.

Or waste good money...

[Guitarman]

Personally, I'd burn it to the ground and get a new one that isn't possessed.
Halloween is over already.

[pmatulew]

Even if the wheel were bent to hell, There's no way that nut is coming off by itself unless the threads are knackered, or the nut is a mismatch to the shaft.

You're missing something. Are all the bushings and washers where they are supposed to be?

[Alleyoop]

There is also a spacer is the spacer maybe missing?
Alleyoop

[jct842]

Since I have never had the axle out of the gear box I am only guessing. But.....how is the left end of the axle anchored in the gear box? It sounds to me that is what is happening.

[methogod]

will post a video... its crazy. even with forcing the nut on with a washer as the OEM nut has a flaired base, it pushed it self back off... yes i think the threads are shot, becuase of the damage the swingarm did when bending.

[oldscootcoot]

I believe there is a circlip retaining the drive axle to the outer bearing. If missing or broken the axle could possibly move out of the case.

[methogod]

i will be taking apart the transmission before the end of the week to see if something cam loose inside the transmission.

Odd as hell though...

[methogod]

Pulled it all apart, not sure what caused this unless the wheel nut coming loose allowed it to happen.

Remove the clutch, split the transmission.

I have seen some where they just put it back together, and other who put some heavy yellowish grease on the ball bearings, before closing it up.

few questions...

what gear OIL do we use?
DO i need that heavy grease? if so what is it?

We have had some issues with random nuts and screws comming loose, we are planning on using blue locktight after fixing this issue.

any other suggestions...

like what bolts you should always locktight... just while the scoot was sitting, we saw a little oil, went to look and one of the exhaust studs was a quarter turn from falling off.

Can anyone point me towards the GY6 150CC 157QMJ "real" service manual. If its specific to the Reketta MC-04 even better.

[Guitarman]

Check this forum in the library section.

[shop242]

Thats weird. Sounds like a possible spacer issue JMO

[methogod]

where can i get the 2 bearings and a new Lock Clip from? Ebay has so many things i dont know which is right... local dealer had to order the shaft... FINAL DRIVE Type-4. (only 24.00), They said the swing plate was ok, since we bent it back, even told us to use the old bearings becuase the damages was minimal and they both turned fine. But for 2 $5.00 bearings i am not taking a chance.


thanks,

[oldscootcoot]

So was it the circlip issue?

[methogod]

we dont know, we just ordered a new AXLE (FINAL GEAR)... Bearings are chewedup a bit but shop things we can use them, i would if the CIRCLIP was intact but part of it is missing.