Modern Vespa

So I couldn't find this issue anywhere at all! I cant even find out what part I need. I have had slippage on take-off for a while. fixed and changed things per recommendations. It was never the right thing.

So this is the deal, I came out of a gym parking lot and went over a deep gutter. the wheel stopped spinning, I turned the throttle and its revving, i slowing down, nothing. So I finally turn it off and proceed to walk it 4 miles home. Because no way I am leaving my baby on the side of the road.

Well I am told its the clutch bell because it is blued. I change it. no change in my movement. I spin the tire out of frustration just needing to move something and it turns funny. I look inside the case and the gear and bell aernt moving, the wheel is spinning by hand but nothing inside. I pull off the tire and i see shiny dust... "I am relieved because I feel I found the issue, but pissing myself because it looks expensive." I feel like it will take a new gear and wheel. They both look worn and I dont want to risk not changing both and it happening again.... So here are a couple pics. I would love all the info I can get as far as possible costs. what to call the parts. what might have happened. is this normal or am I just a bad father? scoot has a little over 10k on it. It's a beast after a tune up. Need to do that after I get it rolling.

You need a new rear wheel.

Splines on axle are fine.

Bet that happened because the axle nut got loose.

Good luck with it.

R

This could be great news! I really couldn't tell. rear wheel looks like shit though. Did anyone notice you can break all the Christmas lights at the top of the screen on the forum front page?

Can I spray braklean on there and clean all that up?

There are tons of pot holes and the roads are crap around here. could that have added to this damage?

Just use a dry brush, and compressed air. If you have a new bell then you might want to sand the glazing off the clutch pads. 220 grit sandpaper and don't sand too much off. Your wheel looks like toast, can't help you there.

OOPS! those are the Break pads, same thing applies. My bad

Thanks for the input. I will sand them a bit. might change them while im in there. I found a pretty awesome rim for 70 so I guess that's the next move. I love this site and all the info.

They look pretty thick to me.

Does anyone have a pic they can post? Would love to see just for comparison.

Also if anyone has had this happen can they let me know. I use my scoot on our crappy streets to go take assembly calls. I do home furniture, exercise equipment and stuff. I am 210 and my bag is about 40 pounds. Is that alot and could that be the cause?

Welcome to Modern Vespa! I hope you find this forum as friendly and as useful as I do!

I agree with glasseye. I had warranty work on my Honda and they didn't torque the variator correctly and the nut came off. My stationary pulley plate looked just like your wheel hub.

I found this online. "Now that I know they are called Splines" Mine look nothing like this. Mine are very, very flat and rounded. What is this part called if I were to replace it?

Those bearings are exposed. Doesn't look like your pics.

I was comparing the splines but ok. I will order a wheel and see how it goes. I found another thread where someone wanted to do the same as I. Some owners said the gear was fine so I might be worrying for no reason.

That's the final gear shaft. You may have some ware on yours but it's hard to tell. The wheel hub is aluminum and the shaft is steel. Clean the shaft and match the parts and check for slop. If it still doesn't make you happy, then have the shaft replaced.
How tight was the nut when you removed the wheel?

It was pretty tight. I just wouldn't want to get out there and strip another wheel.

I'm a machinist, so I can replace a final shaft. If you don't have access to a shop, someone will have to do it for you.

This is the final shaft here? There is a shop about 20 miles from me. not to far. They are always weeks behind so I like to try to learn myself, and they are expensive.

I found this pic. which I am in better shape than the last if this is a new gear with new splines.

Looks like there' a hole in the shaft you can get a screwdriver in. Match the parts and before you tighten the nut, hold the shaft with the driver and wiggle the wheel. If it feels very sloppy, then I would have to say replace the shaft. If not then get a torque wrench and give it the proper ftlbs.

Thats the driven pulley shaft, not the Axle. That shaft is what the clutch and torque driver ride on.

Just clean up the splines with a brush, blow out all the dust & debris and replace the wheel.

You'll be fine, IMHO.

R

Sorry about that, I'm speaking Honda. The shaft that a Honda wheel bolts to has the final drive gear on it. The shaft that the clutch bell bolts to is the drive shaft, and there are gears between them. But I still agree that He is O.K.

Thanks a ton guys. The wheel it is. Would it be smart to replace the washer and bolt also?

NUT MAN NUT

Yea YEa!! NUT!!!

Should I? lol

The wheel is held in place by several parts. There is a flat washer against the wheel, then a nut, then a retainer which is indexed to fit and held in place with a cotter pin. If the retainer is missing, the cotter pin will not hold the nut.

Here is a video from our wiki that shows the rear wheel being removed. Midway in the video you will see the parts in question being removed.

Has the wheel ever been removed before?

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Here's my Vespa LX 150 3V:

















Rear axle nut, cotter pin, lock cup and washer that I replaced:

A great thread. Thanks to all who contribute. This is what ModernVespa is all about.

Oh, and the funnies.


And the Christmas lights.

well I am going to start with replacing the rim. I found a replacement with good splines for............ Wait for it.........!!!!

ARGH, i get the chills every time i see "made in china" stamped on the inside of the wheels.

I'd be less inclined to judge if it was a small random body part or panel....but we're talking about the very thing that connects you and your Italian machine to the road.

Just pisses me off.

Didn't mean to hijack the thread....this is great stuff here. I just got an LX and never took the rear tire of my last LX so the pics are great to see what I'll be in for the first time I need to replace a tire!

SCOOT!!! Not a word about my amazing luck and skill in getting a wheel for 1 DOLLAR!!!

That's one smoking deal. Did you try to talk him down?

Haha, sorry, yeah you got a smoking deal there my friend.

the splines on the driveshaft look shot to me, i would replace that as well or else youll strip another brake drum pretty quickly

So I bought the scooter used. I was just cleaning up the old rim and new one to take them to the shop and have the tire changed.

I noticed something major. The rim where the spines wore off. the splines were only 1/4th of the way inside the hub, also it had 5 holes on it.

Seeing that I looked at the front wheel, it had 5 holes to attach some gear.

So what I am wondering is did he put a front wheel on the back and it wore prematurely because it wasnt made for force?

I only ask because one person on here said replace the final drive gear, which is very expensive, everyone else said it was fine. So You can see I am stuck...

Opinions?

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Anything is possible, but I doubt it. The front wheel is different on an LX from the rear. For one thing, it has no grooves for the geared shaft. It also seems that the hole is bigger and it is covered by a steel cup.

Are you sure it had five holes in it? Maybe it was an ET 4 rear wheel that looks like it.

Vespa LX 150 3v front and rear rims pictured below: