OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
Fuck guys

I tried to change my rollers today, i took off the variator with a little trouble and saw the teeth on the crank had been worn down flat .

Does that mean a whole new crank, ie an engine rebuild?

Dear lord look down upon me today
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@davelx avatar
UTC

Molto Verboso
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
 
Molto Verboso
@davelx avatar
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
UTC quote
eddiechoice wrote:
Fuck guys
If that's your lifestyle choice, who are we to question it?
@leemajors avatar
UTC

Hooked
ET4 2003, GTS250 06
Joined: UTC
Posts: 255
Location: Bearpark...It ain't a park and there ain't no bears
 
Hooked
@leemajors avatar
ET4 2003, GTS250 06
Joined: UTC
Posts: 255
Location: Bearpark...It ain't a park and there ain't no bears
UTC quote
Heya

I cannot tell you if you need a new crank or not.....and I really hope you do not.......but I can tell you that I have just had to replace my crank due to the big end going and it cost me.......£742! Let's hope it not as serious as that pal......

Lee
@madison_sully avatar
UTC

Veni, Vidi, Posti
MP3 500, GTS 250 (both 2008 MY), 2013 Piaggio BV 350, 2014 Can Am Spyder RT
Joined: UTC
Posts: 7588
Location: Madison, Wisconsin
 
Veni, Vidi, Posti
@madison_sully avatar
MP3 500, GTS 250 (both 2008 MY), 2013 Piaggio BV 350, 2014 Can Am Spyder RT
Joined: UTC
Posts: 7588
Location: Madison, Wisconsin
UTC quote
I'm not familiar with your scooter, but what I would say is that the part that is smaller OD, like it is worn down, shows machining marks. In other words, all is well. Not that I know for sure.

But, it also looks similar to features on both my BV 500 and my wife's GTS 250, on which I have replaced the belts, etc.
@mike_holland avatar
UTC

Ossessionato
GTS300 Super 2015 Blue, GTS300 Super 2023 Beige
Joined: UTC
Posts: 3380
Location: Sydney, Australia
 
Ossessionato
@mike_holland avatar
GTS300 Super 2015 Blue, GTS300 Super 2023 Beige
Joined: UTC
Posts: 3380
Location: Sydney, Australia
UTC quote
Mine has always looked like that. Still going fine after 28000 km. If the variator won't turn on the shaft when you put it on, it certainly won't once it is torqued to specs.

Mike

Edit: If that was the result of wear, then your variator must have already come loose, and you would know all about it. If the variator has stayed tight so far, then no wear would have taken place.

Hope that ha reassured you!
@nomad68 avatar
UTC

Molto Verboso
Back on a 125cc!
Joined: UTC
Posts: 1149
Location: High Wycombe UK
 
Molto Verboso
@nomad68 avatar
Back on a 125cc!
Joined: UTC
Posts: 1149
Location: High Wycombe UK
UTC quote
DaveLX wrote:
eddiechoice wrote:
Fuck guys
If that's your lifestyle choice, who are we to question it?
Feckin hell I haven't laughed so much in ages after reading this
UTC

Veni, Vidi, Posti
Joined: UTC
Posts: 7058
Location: Tega Cay, SC
 
Veni, Vidi, Posti
Joined: UTC
Posts: 7058
Location: Tega Cay, SC
UTC quote
Without taking mine apart I can't tell you for sure, but I believe that is the way it comes from the factory, that is, it is machined that way. Take a look around here for an image of the same area and I'll bet you I'm right (for a change). Good Luck
@scootermarc69 avatar
UTC

Ossessionato
Joined: UTC
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Location: Santa Margarita,Ca.
 
Ossessionato
@scootermarc69 avatar
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Location: Santa Margarita,Ca.
UTC quote
Normal
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
No lads

It's official. The variator spins freely when in place.
Game over. Engine rebuild and new crank shaft
Who're I have to exp passion the cost of it to the wife.
@davelx avatar
UTC

Molto Verboso
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
 
Molto Verboso
@davelx avatar
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
UTC quote
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
@nomad68 avatar
UTC

Molto Verboso
Back on a 125cc!
Joined: UTC
Posts: 1149
Location: High Wycombe UK
 
Molto Verboso
@nomad68 avatar
Back on a 125cc!
Joined: UTC
Posts: 1149
Location: High Wycombe UK
UTC quote
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
@davelx avatar
UTC

Molto Verboso
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
 
Molto Verboso
@davelx avatar
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
UTC quote
Spike68 wrote:
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
He said it, not me! Laughing emoticon
@dougl avatar
UTC

El Macho
KTM Super Duke 1290, Vespa GTS 300
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Posts: 9047
Location: Porto 4050-570
 
El Macho
@dougl avatar
KTM Super Duke 1290, Vespa GTS 300
Joined: UTC
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Location: Porto 4050-570
UTC quote
Don't forget the variator itself is made of aluminium and is sacrificial. Yes it will spin if it is damaged. Get another one and get a needle file and clean up the splines on the steel crankshaft. There's probably just aluminium in there. This has happened to lots of people albeit on the bigger Vespas and this is the most common solution. Rarely is the crankshaft so badly damaged as to require replacement.

At Dave - that was really funny.
@bendcyclist avatar
UTC

Molto Verboso
2006 GTS 250ie in Silver
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Posts: 1808
Location: Bend, OR
 
Molto Verboso
@bendcyclist avatar
2006 GTS 250ie in Silver
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Posts: 1808
Location: Bend, OR
UTC quote
Keep Calm and File On.
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Posts: 43894
Location: Pleasant Hill, CA
 
Moderaptor
@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Posts: 43894
Location: Pleasant Hill, CA
UTC quote
eddiechoice wrote:
No lads

It's official. The variator spins freely when in place.
The variator or the driving pulley? It doesn't matter if the variator spins (inner pulley and backing plate) - indeed the J Costa variator spins freely by design. It's the driving (outer) pulley that absolutely has to be one with the crankshaft. It's extremely unusual (unheard of?) for the driving pulley to have damaged anything but itself. You've not shown a picture of the end of the crankshaft where the driving pulley sits, so we can't properly comment further.
UTC

Hooked
Joined: UTC
Posts: 314
 
Hooked
Joined: UTC
Posts: 314
UTC quote
DaveLX wrote:
Spike68 wrote:
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
He said it, not me! Laughing emoticon
Laughing emoticon Oh my, both ways?

Well, double chances now for a date Saturday night.
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
DaveLX wrote:
Spike68 wrote:
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
He said it, not me! Laughing emoticon
Dude, your just reading what you want to read man
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
It seems to be rounded off in two parts.
I amt see how it's happened but the teeth on the variator plate are also nearly smooth.
Forum member supplied image with no explanatory text
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
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Posts: 73
Location: Denmark
UTC quote
See what I mean.
What could cause that?
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@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Location: Pleasant Hill, CA
 
Moderaptor
@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43894
Location: Pleasant Hill, CA
UTC quote
That could be caused by either the variator nut being loose at some stage, or the belt snagging. However that one should work fine, though a new one that doesn't spin freely wouldn't go amiss.

The important thing is that the driving pulley end of the crankshaft looks fine. The middle section is milled at the factory - and it looks very much like the inside end was also milled on purpose as it has the same milling marks.

What does the inside of the driving pulley look like? If that's OK then you haven't got a problem at all - as long as you use a new one-time-use variator nut with it's captive crush washer. Re-using old nuts has caused many a driving pulley to lose its splines, as recounted oft-times on MV.
@davelx avatar
UTC

Molto Verboso
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
 
Molto Verboso
@davelx avatar
2016 Piaggio BV-350
Joined: UTC
Posts: 1879
Location: Virginia, USA, from London, England
UTC quote
eddiechoice wrote:
DaveLX wrote:
Spike68 wrote:
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
He said it, not me! Laughing emoticon
Dude, your just reading what you want to read man
Of course we are - it's a common occurrence on MV. No offence intended, of course, Bro!
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
DaveLX wrote:
eddiechoice wrote:
DaveLX wrote:
Spike68 wrote:
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
He said it, not me! Laughing emoticon
Dude, your just reading what you want to read man
Of course we are - it's a common occurrence on MV. No offence intended, of course, Bro!
No way man. I thought it was funny as well. Didn't realise I'd written it to be honest
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
jimc wrote:
That could be caused by either the variator nut being loose at some stage, or the belt snagging. However that one should work fine, though a new one that doesn't spin freely wouldn't go amiss.

The important thing is that the driving pulley end of the crankshaft looks fine. The middle section is milled at the factory - and it looks very much like the inside end was also milled on purpose as it has the same milling marks.

What does the inside of the driving pulley look like? If that's OK then you haven't got a problem at all - as long as you use a new one-time-use variator nut with it's captive crush washer. Re-using old nuts has caused many a driving pulley to lose its splines, as recounted oft-times on MV.
OK. I had changed the rollers a cold of times over the past 2 months and used the same nut but always used loctite to seal it. I'll put up a picture of the drive pulley later when I get a second. Nice one for the info
@znomit avatar
UTC

Veni, Vidi, Posti
LX190 Friday afternoon special, [s]Primavera[/s], S50, too many pushbikes
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Posts: 10347
Location: Hermit Kingdom
 
Veni, Vidi, Posti
@znomit avatar
LX190 Friday afternoon special, [s]Primavera[/s], S50, too many pushbikes
Joined: UTC
Posts: 10347
Location: Hermit Kingdom
UTC quote
eddiechoice wrote:
DaveLX wrote:
eddiechoice wrote:
DaveLX wrote:
Spike68 wrote:
DaveLX wrote:
eddiechoice wrote:
Fuck guys
eddiechoice wrote:
No lads
Make your mind up!
Stop it Laughing emoticon
He said it, not me! Laughing emoticon
Dude, your just reading what you want to read man
Of course we are - it's a common occurrence on MV. No offence intended, of course, Bro!
No way man. I thought it was funny as well. Didn't realise I'd written it to be honest
You two get a room.
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
What do you think?
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@motovista avatar
UTC

Veni, Vidi, Posti
GT 2.4
Joined: UTC
Posts: 9026
Location: Watts, Cherokee Nation
 
Veni, Vidi, Posti
@motovista avatar
GT 2.4
Joined: UTC
Posts: 9026
Location: Watts, Cherokee Nation
UTC quote
When you really mess up a variator, the cam is a bitch to get out. If yours came right out with the rest of the primary sliding sheave, you probably aren't as bad off as you think. Buy a new variator and be done with it. And stop checking your rollers so often. Get a new complete variator, it can be aftermarket,doesn't have to be OEM. There are a couple of companies that sell a kit that includes the Primary sliding sheave, collar, cam, sliders and roller weights as a unit, and that's the way to go. It will come with standard weights for your bike. get a new Primary fixed sheave and quality belt, preferably Malossi or, if you can't get that, a Dayco or Piaggio is fine, make sure you have every washer called for in the diagram, because if there is a thin one between the collar and the primary fixed sheave and you leave it out, if the primary fixed sheave is aluminim, The collar will eat at the aluminum and cause it to do what your variator did, This washer is often left out because it really doesn't look that important. Put it all back together exactly right with the magic nuts that seem to make a difference, torque it down good with an impact hammer, and ride the thing. The odds are you'll be fine for 6000 miles, even if you have to tap the cam back onto the crankshaft using an old collar to force it back through the grooves of the crankshaft. Once you get the cam all the way back on the crankshaft, it doesn't matter if you can pull it off again. So don't try. Been there, done that, thousands of miles later it's still going strong. This is how a good shop will get you back on the road if they weren't trying to charge you all they could or make everything "pefectly Piaggio."
You're not as bad off as you think, and are probably less than $150 away from having your bike back together and set up to last a while.There are a couple other tricks, and if this really isn't making a lot of sense, let me know and i'll give you a little more insight as to how to get it all back together so it lasts. And seriously, once you get it together, leave the F%^#King rollers alone.
OP
@eddiechoice avatar
UTC

Enthusiast
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
 
Enthusiast
@eddiechoice avatar
Piaggio Vespa ET2 2004
Joined: UTC
Posts: 73
Location: Denmark
UTC quote
That's some detailed info.
I changed the rollers when I changed the exhaust because it was running like shit. Then it ran allot another but I lost 10 ks top end so I tried some of those Dr pulley ones and they were great for a while but then a little power loss top end again.
Trust me. Once I got it going again I won't be messing with the rollers!
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