Modern Vespa : Crankshaft and clutch compatibility problem

Crankshaft and clutch compatibility problem

davebaro

UTC

details

Member

1959 VBA 150

Joined: UTC
Posts: 48
Location: Sydney, Australia

davebaro

Member

1959 VBA 150

Joined: UTC
Posts: 48
Location: Sydney, Australia

UTC quote

Am in the process of restoring a VBA 150 and have installed a mazzucchelli crank
( http://www.sip-scootershop.com/.../racing+crankshaft+mazzucch... ) and am trying to fit a Cosa 2 clutch (22 teeth) ( http://www.sip-scootershop.com/.../clutch+sip+cosa+2+sport+_9... ) but am having trouble getting it to fit. Have used a micrometer and there is close to a 0.3mm difference. Not sure whether I should try and force it on/use a puller of some type, or whether I should take it to an engineer, or is it SIP's problem?
https://wordpress.com/vi.../1959vesparestoration.wordpress.com

Hoping someone has some advice?

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Ginch UTC details Veni, Vidi, Posti 74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe Joined: UTC Posts: 9527 Location: Ballarat VIC, Australia
Ginch Veni, Vidi, Posti 74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe Joined: UTC Posts: 9527 Location: Ballarat VIC, Australia	UTC quote What did SIP say about this? I would start there.

OP davebaro UTC details Member 1959 VBA 150 Joined: UTC Posts: 48 Location: Sydney, Australia
OP davebaro Member 1959 VBA 150 Joined: UTC Posts: 48 Location: Sydney, Australia	UTC quote Thanks Ginch. Am waiting on a response from them - they have been very slow. Will come back with an update when I hear from them

Ginch UTC details Veni, Vidi, Posti 74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe Joined: UTC Posts: 9527 Location: Ballarat VIC, Australia
Ginch Veni, Vidi, Posti 74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe Joined: UTC Posts: 9527 Location: Ballarat VIC, Australia	UTC quote I certainly wouldn't try to force it on. You could call them, there's always someone there who speaks English. Might help you to get further up the list.

Declan UTC details Hooked 1964 Vespa GS160, Fuji Rabbit S601, Lambretta LUI, 1958 Vespa VB1 Joined: UTC Posts: 337 Location: St. Louis
Declan Hooked 1964 Vespa GS160, Fuji Rabbit S601, Lambretta LUI, 1958 Vespa VB1 Joined: UTC Posts: 337 Location: St. Louis	UTC quote Any chance of getting the motor in the freezer and the clutch basket in the oven at 400 degrees? Not sure if it would be enough, but it could be worth trying and seeing if they slip together.

whodatschrome UTC details parallelogramerist Joined: UTC Posts: 5994
whodatschrome parallelogramerist Joined: UTC Posts: 5994	UTC quote this is one of those times that "get a bigger hammer" would probably be a bad thing...

Svint1 UTC details Enthusiast too many Joined: UTC Posts: 91 Location: Norway
Svint1 Enthusiast too many Joined: UTC Posts: 91 Location: Norway	UTC quote davebaro wrote: Thanks Ginch. Am waiting on a response from them - they have been very slow. Will come back with an update when I hear from them PIS is ALWAYS slow... That's why we tend to not use them... -rather use Scooter Centre Cologne. Good luck anyway! Ø

⬆️ About 7 years elapsed ⬇️

Genfuzuki UTC details Lurker Px125e disc with PX200 engine Joined: UTC Posts: 1 Location: Kent
Genfuzuki Lurker Px125e disc with PX200 engine Joined: UTC Posts: 1 Location: Kent	UTC quote I know it's been 7 years so hope the OP is still active. Did you ever get a resolve for this as I'm having exactly the same problem with a px200 and cosa clutch, original piaggio crank is a snug fit but not this Mazi crank.

SubEtherBASS UTC details Veni, Vidi, Posti 1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others Joined: UTC Posts: 5092 Location: Australa, Mate
SubEtherBASS Veni, Vidi, Posti 1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others Joined: UTC Posts: 5092 Location: Australa, Mate	UTC quote Just heat up centre of clutch (as mentioned above). I use a blow torch with blue flame blowing thru hole

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