OP
@astromags avatar
UTC

Veni, Vidi, Posti
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
 
Veni, Vidi, Posti
@astromags avatar
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
UTC quote
I was reading a couple of posts about pulling the flywheel on a VBA, and it mentions using the nut pushing against the circlip to get it off. How to remove Flywheel without special flywheel tool

I looked at mine and apparently there is no circlip. I see a groove in there so I assume that's where the clip goes.

Can I pull it without the help of the circlip, or will it be easier with the circlip?

Can I buy that size circlip anywhere or will I need to order it?

Thanks.
Forum member supplied image with no explanatory text
@cubastreet avatar
UTC

Hooked
rollin on 8s
Joined: UTC
Posts: 283
Location: NZ
 
Hooked
@cubastreet avatar
rollin on 8s
Joined: UTC
Posts: 283
Location: NZ
UTC quote
If you loosen the nut (don't take it off) and then hammer on the end of it it should free the taper.

BUT

There's a small chance you could damage the bearings or possibly even the cases so I probably wouldn't do this unless absolutely necessary.

Measure the internal diameter where the circlip seats and you should be able to get an internal circlip from a bearing/engineering shop.
OP
@astromags avatar
UTC

Veni, Vidi, Posti
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
 
Veni, Vidi, Posti
@astromags avatar
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
UTC quote
Thanks
@sfvsr avatar
UTC

Ossessionato
a lambretta or two
Joined: UTC
Posts: 3724
Location: San Francisco
 
Ossessionato
@sfvsr avatar
a lambretta or two
Joined: UTC
Posts: 3724
Location: San Francisco
UTC quote
For god's sake get the correct cir-clip. I know this means waiting, but it is the right thing to do.

You should be able to get one at any decent hardware store. I wouldn't worry about metric vs standard. The most important thing is making sure the cir-clip is beefy enough to take the pressure. Most of the generic cir-clips froma hardware store will be too thin metal and will twist out and get chewed up by the flywheel nut. So you'll have to get the right one.

Find someone with a VBB/Sprint and use theirs.
@v_oodoo avatar
UTC

Style Maven
'74 50s x3 '87 PK125XL '92 PK50XL2 Plurimatic - & - '58 AllState '68 Sprint '66(?) 125 Super '72 DanMotor 150 Super and '04 Bajaj LML hybrid
Joined: UTC
Posts: 10075
Location: seattle/athens
 
Style Maven
@v_oodoo avatar
'74 50s x3 '87 PK125XL '92 PK50XL2 Plurimatic - & - '58 AllState '68 Sprint '66(?) 125 Super '72 DanMotor 150 Super and '04 Bajaj LML hybrid
Joined: UTC
Posts: 10075
Location: seattle/athens
UTC quote
If it's being stubborn:

1) put some penetrant behind the nut.

2) heat flywheel hub.

3) when you have lots of pressure against the snapring(starting to bulge), give a couple sharp raps with a center punch in the dimple on the crank end. Small to medium hammer, easy does it - no mashed threads on crank this way. Turn the nut a bit & repeat as needed. Should pop right off now.

Speaking of snap rings, be sure to clean the corners of the groove well and install snapring with sharp edge facing out. If I'm using an old one I like to stretch it out a little so it's good & tight in the groove.

If it's being REAL stubborn PM me, I know a few other unapproved trix that have worked.
OP
@astromags avatar
UTC

Veni, Vidi, Posti
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
 
Veni, Vidi, Posti
@astromags avatar
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
UTC quote
SFvsr wrote:
For god's sake get the correct cir-clip. I know this means waiting, but it is the right thing to do.
If I have to order one so be it. I'm in no hurry to fuck this thing up.
SFvsr wrote:
You should be able to get one at any decent hardware store. I wouldn't worry about metric vs standard. The most important thing is making sure the cir-clip is beefy enough to take the pressure. Most of the generic cir-clips froma hardware store will be too thin metal and will twist out and get chewed up by the flywheel nut. So you'll have to get the right one.
We have an Ace store that stocks all kinds of small hardware, fasteners, etc. I'll try to find the beefiest on I can. if it doesn't look beefy, I won't use it.
SFvsr wrote:
Find someone with a VBB/Sprint and use theirs.
HA! I wish. The only other scooter within an hour and a half drive is a P200.

Thanks for the tips
OP
@astromags avatar
UTC

Veni, Vidi, Posti
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
 
Veni, Vidi, Posti
@astromags avatar
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
UTC quote
V oodoo wrote:
If it's being stubborn:

1) put some penetrant behind the nut.

2) heat flywheel hub.

3) when you have lots of pressure against the snapring(starting to bulge), give a couple sharp raps with a center punch in the dimple on the crank end. Small to medium hammer, easy does it - no mashed threads on crank this way. Turn the nut a bit & repeat as needed. Should pop right off now.

Speaking of snap rings, be sure to clean the corners of the groove well and install snapring with sharp edge facing out. If I'm using an old one I like to stretch it out a little so it's good & tight in the groove.

If it's being REAL stubborn PM me, I know a few other unapproved trix that have worked.
Thanks for the tips. I'll hit you up if I run into any snags.
@chaus avatar
UTC

Hooked
58 allstate,66 bluebadge,65 ss180,57 ape,47 regal,8 toppers,10 Papoose's
Joined: UTC
Posts: 184
 
Hooked
@chaus avatar
58 allstate,66 bluebadge,65 ss180,57 ape,47 regal,8 toppers,10 Papoose's
Joined: UTC
Posts: 184
UTC quote
I should have one for u.
Going to check now, ill let u know soon.
@chaus avatar
UTC

Hooked
58 allstate,66 bluebadge,65 ss180,57 ape,47 regal,8 toppers,10 Papoose's
Joined: UTC
Posts: 184
 
Hooked
@chaus avatar
58 allstate,66 bluebadge,65 ss180,57 ape,47 regal,8 toppers,10 Papoose's
Joined: UTC
Posts: 184
UTC quote
Found one. If you want it PM me your address and ill send it to u.
OP
@astromags avatar
UTC

Veni, Vidi, Posti
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
 
Veni, Vidi, Posti
@astromags avatar
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
UTC quote
Thanks Chaus
@sfvsr avatar
UTC

Ossessionato
a lambretta or two
Joined: UTC
Posts: 3724
Location: San Francisco
 
Ossessionato
@sfvsr avatar
a lambretta or two
Joined: UTC
Posts: 3724
Location: San Francisco
UTC quote
V oodoo wrote:
If it's being stubborn:

1) put some penetrant behind the nut.

2) heat flywheel hub.

Yeah. This is the most dangerous and absolutely foolish advice combination I have read in a good while.

Make sure you have someone ready to take you to the ER when you pass out and start having seizures from phosgene poisoning.

Then you die.

Absolutely the most careless and stupid stupid stupid stupid fucking stupid advice to give over the internet. And if anyone ever follows this advice then you are just as stupid.
@v_oodoo avatar
UTC

Style Maven
'74 50s x3 '87 PK125XL '92 PK50XL2 Plurimatic - & - '58 AllState '68 Sprint '66(?) 125 Super '72 DanMotor 150 Super and '04 Bajaj LML hybrid
Joined: UTC
Posts: 10075
Location: seattle/athens
 
Style Maven
@v_oodoo avatar
'74 50s x3 '87 PK125XL '92 PK50XL2 Plurimatic - & - '58 AllState '68 Sprint '66(?) 125 Super '72 DanMotor 150 Super and '04 Bajaj LML hybrid
Joined: UTC
Posts: 10075
Location: seattle/athens
UTC quote
Thankyou for your concern. Guess I've just been lucky. My penetrant is 50/50 acetone & ATF, not some odd clorinated commercial product. Always remember to make SURE it is a non-chlorinated cleaner or solvent before you use it for anything or use appropriate protection. Also I don't do this kind of thing in cramped spaces....

And if this is the stupidest thing you've read here, you've been missing out. Search here for "stupid stupid stupid stupid fucking stupid" & you'll see what I mean. Then Google 'phosgene poisoning' if you are worried. Also PB Blaster, WD40 etc. post MSDS reports for all to see. Be careful, folks!

External inline image provided by member with no explanatory text
"On His Majesty's Service"


I may know more about phosgene poisoning than you'll ever know. My Grampa was a victim in WWI, he told me all about it.
OP
@astromags avatar
UTC

Veni, Vidi, Posti
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
 
Veni, Vidi, Posti
@astromags avatar
'80 P200E, '76 Primavera 125 ET3. '59 Vespa 150
Joined: UTC
Posts: 6897
Location: GT, Texas
UTC quote
'Nuff said.
Forum member supplied image with no explanatory text
⬆️    About 2 months elapsed    ⬇️
UTC

Member
vbb
Joined: UTC
Posts: 41
Location: edinburgh, united kingdom
 
Member
vbb
Joined: UTC
Posts: 41
Location: edinburgh, united kingdom
UTC quote
Just noticed the thread, and curious. Did the circlip work?

Reason I ask is that I've never successfully used the circlip method to remove an old flywheel. And that's with a clean groove, etc.

Claw hammer - yes.
Two or three wedges - yes (Broken flywheel - yes!)

But, circlip - no.

Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.

Modern Vespa is made possible by our generous supporters.

Buy Me A Coffee
 

Shop on Amazon with Modern Vespa

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com


All Content Copyright 2005-2025 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0098s ][ Queries: 4 (0.0032s) ][ live ][ 339 ][ ThingOne ]