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Clutch nut keeps coming loose
OP
@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 396
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 396
Location: Burnham on sea, Somerset England
UTC quote
Got a problem with the clutch in a Vespa P200E the castle nut has come loose again. It happened months ago and it's happened again. The clutch was slipping abit so I opened it up today to find the clutch was loose. The bit where the clutch lock nut locks into the crank snapped again like it did before. I am torqing the nut like it's meant to be. I've never had this problem I've replaced a lot of clutches over the years. Any ideas why this keeps happening
@hibbert avatar
hibbert
UTC
Molto Verboso
Vespa
Joined: UTC
Posts: 1876
Location: California
 
hibbert
Molto Verboso
@hibbert avatar
Vespa
Joined: UTC
Posts: 1876
Location: California
UTC quote
I would switch to the hex nut most folks are using these days and ditch the castle nut you may be able to get it tighter
Positive
@geeklion avatar
GeekLion
UTC
The Dude
Too Many piles of Junk that need too much work and too much money
Joined: UTC
Posts: 2418
Location: PNW from LBC
 
GeekLion
The Dude
@geeklion avatar
Too Many piles of Junk that need too much work and too much money
Joined: UTC
Posts: 2418
Location: PNW from LBC
UTC quote
I second Hibbert's suggestion. Ditch the castle nut & cage, they are difficult to torque correctly; and a high chance of failure. Instead use a hex nut and star lock washer. Bit of blue loctite is good insurance. DRT, BGM, and others offer good options.

Do you have the oil drive gear installed between clutch & bearing?

Are you using 7-spring clutch or Cosa2?
OP
@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 396
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 396
Location: Burnham on sea, Somerset England
UTC quote
I'm having problems quoting your post it's not working. Yes the oil drive gear is in I had to use the gear from a autolube PE because I couldn't get the right size spacer washer. The clutch is a 7 spring one. The start lock washer I'm having problems finding and the hex nut I can only see ones only for cosa clutch
OP
@shepys avatar
shepys
UTC
Hooked
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 396
Location: Burnham on sea, Somerset England
 
shepys
Hooked
@shepys avatar
Vespa T5 classic 1994 and 1980 Vespa p200e
Joined: UTC
Posts: 396
Location: Burnham on sea, Somerset England
UTC quote
Is this what I'm after I found it on eBay
Forum member supplied image with no explanatory text
@geeklion avatar
GeekLion
UTC
The Dude
Too Many piles of Junk that need too much work and too much money
Joined: UTC
Posts: 2418
Location: PNW from LBC
 
GeekLion
The Dude
@geeklion avatar
Too Many piles of Junk that need too much work and too much money
Joined: UTC
Posts: 2418
Location: PNW from LBC
UTC quote
shepys wrote:
Is this what I'm after I found it on eBay
Yes, that looks correct. Cant speak for the quality from an Ebay seller
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