OP
@modkuo avatar
UTC

Addicted
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
 
Addicted
@modkuo avatar
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
UTC quote
Ok...short story..smeared key and crank on the Super is fubar.....allegedly. Turned to the expert on good-ol "Merican make-it-work"....#Voo doo. He suggested a fix and I hooked SoCalGuy.....

Check-um bra.....

Named the VoodooAussieIndoBodge experiment. Honoring all of you who do it yourselves...

Pleased with the results and will update but just had to share our community boner...

So so stoked. Thanks to voodoo the DIY sage, SoCal my bro..and all of youse....
Bad news bro
Bad news bro
Voo  doo says J.B. it!   Add clamp...taped the crank like we were fixing surfboard dings...same concept as rail repair.
Voo doo says J.B. it! Add clamp...taped the crank like we were fixing surfboard dings...same concept as rail repair.
Methinks it might work beavis...
..
Methinks it might work beavis... ..
I shaved the top off while jb  was a bit soft
I shaved the top off while jb was a bit soft
Tapped the shit out like buttah...thanks to greasing the key beforehand
Tapped the shit out like buttah...thanks to greasing the key beforehand
Key popped right out
Key popped right out
Whoa! Near perfect
Whoa! Near perfect
Dude!  We have success!  Maybe...but looks killer...
Dude! We have success! Maybe...but looks killer...
Bajaj flywheel went on...gonna get a 12v points setup from motorsports Tuesday and get Ol Blue back on the road...hopefully optomistic....
Bajaj flywheel went on...gonna get a 12v points setup from motorsports Tuesday and get Ol Blue back on the road...hopefully optomistic....
⚠️ Last edited by modkuo on UTC; edited 1 time
@oopsclunkthud avatar
UTC

Banned
3:5
Joined: UTC
Posts: 8991
Location: San Francisco
 
Banned
@oopsclunkthud avatar
3:5
Joined: UTC
Posts: 8991
Location: San Francisco
UTC quote
lap the flywheel to the crank to get the tapers to match best they can
@socalguy avatar
UTC

bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7155
Location: So Cal
 
bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7155
Location: So Cal
UTC quote
File this under righteous JB Weld repairs... the epoxied keyway is near perfection. We'll know soon enough if it holds. I'm giving it a high probably of success.

Fingers crossed brother!
@v_oodoo avatar
UTC

Style Maven
'74 50s x3 '87 PK125XL '92 PK50XLS Plurimatic - & - '58 AllState '68 Sprint '66(?) Super125 and '72 DanMotor Super150
Joined: UTC
Posts: 9620
Location: seattle/athens
 
Style Maven
@v_oodoo avatar
'74 50s x3 '87 PK125XL '92 PK50XLS Plurimatic - & - '58 AllState '68 Sprint '66(?) Super125 and '72 DanMotor Super150
Joined: UTC
Posts: 9620
Location: seattle/athens
UTC quote
Thank you for the compliments. I think....

Holds? What 'holds', it only locates, right? But yeah, hope the JB holds its shape, stays on & stays hard. Viagra, anybody?

The fresh lapped taper torqued on tight is gonna do the heavy lifting here.

Way to go, looks like it just might work! After you lap it good, remember that you need to set a new TDC mark now and time it from that. You need to set your point gap first, then do your timing w/ Robot's method using a battery & hi watt lamp across the points to detect when they open.

Advantage this way is you won't need to fully torque the FW nut every time you pull it to make an adjustment, just get it tight. Torque it proper when you think timing's right & fire it up to verify w/ a timing lite and BE SURE to TORQUE IT EVERY TIME if you are gonna kick the motor over.
External inline image provided by member with no explanatory text
Or this again, but likely worse w/ that bodgey JBWeld shit you got in there. Clown emoticon
@subetherbass avatar
UTC

Ossessionato
1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: UTC
Posts: 4814
Location: Australa, Mate
 
Ossessionato
@subetherbass avatar
1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: UTC
Posts: 4814
Location: Australa, Mate
UTC quote
Loctite Taper-Lock! That ort to fix it
@socalguy avatar
UTC

bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7155
Location: So Cal
 
bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7155
Location: So Cal
UTC quote
Good advice all. The taper shall be lapped prior to installation of the new flywheel.

For interest's sake, the red stuff in the "before" pic was the prior owner's attempt to Loctite the key in place. It was rock hard and had to be chipped out.
@xantufrog avatar
UTC

Moderibbit
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: UTC
Posts: 8892
Location: Atlanta, GA
 
Moderibbit
@xantufrog avatar
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: UTC
Posts: 8892
Location: Atlanta, GA
UTC quote
well done!
@blank avatar
UTC

Hooked
65 VNC Super, Series 1 50n (136), 50s, PX150, Douglas G, Ciao, Si, PX200E, PX vespacross project, Douglas Rod
Joined: UTC
Posts: 291
Location: Victoria
 
Hooked
@blank avatar
65 VNC Super, Series 1 50n (136), 50s, PX150, Douglas G, Ciao, Si, PX200E, PX vespacross project, Douglas Rod
Joined: UTC
Posts: 291
Location: Victoria
UTC quote
Any tips on lapping it in situ? Is it possible that the grinding compound could ruin the seal? That stuffs like mechanical kryptonite
@oopsclunkthud avatar
UTC

Banned
3:5
Joined: UTC
Posts: 8991
Location: San Francisco
 
Banned
@oopsclunkthud avatar
3:5
Joined: UTC
Posts: 8991
Location: San Francisco
UTC quote
if you go light on the grinding paste (as you should) it should not come too close to the seal. then a skilled hand can remove any excess without risk to the seal.

But I'd still put a nice fillet of grease between the seal and crank, just to be safe, maybe put it in gear or put a piston stop in to keep things from rotating and messing up the grease.
OP
@modkuo avatar
UTC

Addicted
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
 
Addicted
@modkuo avatar
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
UTC quote
Fer sure
Thanks for the tips! Keep em coming... Picking up the new flywheel and stator tomorrow. It will be a Points setup with 12v capability. Want to button up quickly but Might be a couple weeks before this gets totally done as work is interfering yet again.
@dudley_1972 avatar
UTC

Enthusiast
Vespa Douglas Sportique (VBB), PX200E, 50N (smallframe), Lambretta LI 150 (SII)
Joined: UTC
Posts: 65
Location: Gillingham, UK
 
Enthusiast
@dudley_1972 avatar
Vespa Douglas Sportique (VBB), PX200E, 50N (smallframe), Lambretta LI 150 (SII)
Joined: UTC
Posts: 65
Location: Gillingham, UK
UTC quote
I've just had a similar thing happen to me on the clutch side, I was wondering if this would work if I tried to repair it in this manner. I understand that aa locking nut wih 40 Nm torgue must be applied and that the woodruff is only there for the alignment, would this be possible?
UTC

Hooked
2009 Stella,
Joined: UTC
Posts: 134
Location: PA
 
Hooked
2009 Stella,
Joined: UTC
Posts: 134
Location: PA
UTC quote
Hi all, enjoying following this thread. I've seen JBW used for a lot of things but none like this! Has anyone done such a repair that can report how it's held up after several years or distance ? Thanks
OP
@modkuo avatar
UTC

Addicted
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
 
Addicted
@modkuo avatar
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
UTC quote
Hello my little droogie
@Dudley, if your keyway looks similar, why not try....lets see a pic.

@springer....i plan to ride blue mucho after this fix....so can let you know.

New flywheel and stator purchased and now.just need the time to lap and install...
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
@v_oodoo avatar
UTC

Style Maven
'74 50s x3 '87 PK125XL '92 PK50XLS Plurimatic - & - '58 AllState '68 Sprint '66(?) Super125 and '72 DanMotor Super150
Joined: UTC
Posts: 9620
Location: seattle/athens
 
Style Maven
@v_oodoo avatar
'74 50s x3 '87 PK125XL '92 PK50XLS Plurimatic - & - '58 AllState '68 Sprint '66(?) Super125 and '72 DanMotor Super150
Joined: UTC
Posts: 9620
Location: seattle/athens
UTC quote
I'm very skeptical that a fix like this would work on the clutch side, there's no taper here(like on a smallframe motor), so the key is doing most of the work and the key is much larger to deal with the load. Any JBWeld in there would be hammered pretty hard and you've got problems if the key starts to get loose. On the flywheel side there's no hammering on the key if it's properly tight on the taper and it's not transmitting power to the back wheel.

Meanwhile I'm waiting for modkuo to get the lead out so we can see if he gets spark and find out if his new FW stays put. Popcorn emoticon
@dudley_1972 avatar
UTC

Enthusiast
Vespa Douglas Sportique (VBB), PX200E, 50N (smallframe), Lambretta LI 150 (SII)
Joined: UTC
Posts: 65
Location: Gillingham, UK
 
Enthusiast
@dudley_1972 avatar
Vespa Douglas Sportique (VBB), PX200E, 50N (smallframe), Lambretta LI 150 (SII)
Joined: UTC
Posts: 65
Location: Gillingham, UK
UTC quote
Vodoo thanks for your reply, it's just what I thought to be honest but i've ordered a new crank anyway.
@socalguy avatar
UTC

bodgemaster
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7155
Location: So Cal
 
bodgemaster
@socalguy avatar
63 GL, 76 Super (x2), 74 Primavera (x2), 79 P200, 06 Fly 150
Joined: UTC
Posts: 7155
Location: So Cal
UTC quote
Yeah come on modkuo what's taking so long? Razz emoticon
⬆️    About 1 month elapsed    ⬇️
OP
@modkuo avatar
UTC

Addicted
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
 
Addicted
@modkuo avatar
'79 P200, '74 VBC Super, '77 P125 Project, 1978 Rally 200
Joined: UTC
Posts: 811
Location: 32° 37' 40" N, 117° 2' 53" W
UTC quote
Finito!
Ok..done and it runs! Brought blue back from so cal guys fix it emporium. Ditched the Bajaj electrics for 12 volt points setup. Put the smaller 20-20 carb on to relieve the sputter, rejetted, Retimed and it's running great with the pinasco kit. ***properly torqued flywheel V oodoo!**

Thanks for everyone's input and advice! Thanks to SoCalGuy as always, his toolbox and brain are a boon to mankind
Smooth baby!
Smooth baby!
Was this
Was this
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
Back home!
Back home!
@v_oodoo avatar
UTC

Style Maven
'74 50s x3 '87 PK125XL '92 PK50XLS Plurimatic - & - '58 AllState '68 Sprint '66(?) Super125 and '72 DanMotor Super150
Joined: UTC
Posts: 9620
Location: seattle/athens
 
Style Maven
@v_oodoo avatar
'74 50s x3 '87 PK125XL '92 PK50XLS Plurimatic - & - '58 AllState '68 Sprint '66(?) Super125 and '72 DanMotor Super150
Joined: UTC
Posts: 9620
Location: seattle/athens
UTC quote
Well done guys! Good to see it back on the road and minding its manners again. Now I know it works, I'm gonna have to try this myself on a very sloppy keyway I've been putting up with.
DoubleGood Design banner

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.

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 2005-2024 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0148s ][ Queries: 5 (0.0060s) ][ live ][ 313 ][ ThingOne ]