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@bommes avatar
UTC

Hooked
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
 
Hooked
@bommes avatar
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
UTC quote
External inline image provided by member with no explanatory text

After a pathetic 250km's on the Dutch 1000 today my variator went t**s up. Crying or Very sad emoticon

External inline image provided by member with no explanatory text

Limped it home and opened the thing up:

External inline image provided by member with no explanatory text

Been riding with these Dr'Pulley sliders since July 2013..(had to look back the order in my mail).
Seems like they do have a max life after all, think that's somewhere like 25.000km's in these years.

Now that the pulley is also shot the whole set has to be replaced.

But now comes the question:
- Buy all new stock parts and stick an new set of Dr. Pulley sliders in there ? (EUR 150)
- Stock parts and go fiddle with original rollers until I have the exact right weight ? (EUR 115 + extra sets of rollers))
- Order a malossi multivar thingy and roll with that out of the box ? (EUR 165 )

My clutch also seems to be having the blues.. Maybe smart to also thoroughly check that.
Also noticed there si some oil residue inside the variator housing.
Oil consumption is not even noticeable and the seals on both the crankshaft and the rear wheel axle seem to be okay.
Can't clearly pin point where the oil is coming from.
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43453
Location: Pleasant Hill, CA
 
Moderaptor
@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43453
Location: Pleasant Hill, CA
UTC quote
I bet I can tell where that oil is coming from - the oil seal between the sump cover and the crankcase. If you've used Dr Pulleys without an extra 1.3mm washer inside the driving pulley, then that seal will have been gradually ripped out by the belt. I've seen this on several GTSs - so buy one of those seals at the same time as the new variator. Also buy the washer if you're going to use Dr Pulleys again - they allow the belt to go just a wee bit further out on the variator, hence causing the problem. Trim the seal right down to the join.


Seal: 846098
Washer: 831363
OP
@bommes avatar
UTC

Hooked
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
 
Hooked
@bommes avatar
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
UTC quote
There is a washer between the pulley's.
1.3 mm sounds like the one.

But still could be the seal your mentioning, worth checking, thanks.
UTC

Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: UTC
Posts: 971
Location: tampa
 
Addicted
2010 gts 300 super. 09 MP3 500 lite
Joined: UTC
Posts: 971
Location: tampa
UTC quote
pics of parts you think are worn and causing problems is a great place to start. I have seen sliders with 20,ooo miles on them. they still look new. I dont think they can wear out when everything else is working as it should.

what was symptom ? limped home doesnt help much

edit: wrote above when pics were like thumbnails and I could see the damage. now that i can see, I would say something other than the sliders failed. the sliders were not the cause. they were the victim.

looks to me like the cvt went too long without a cleaning. the bearing looks worn out. that to me is what possibly caused this failure. that or the four slides got too loose and allowed to much play.
OP
@bommes avatar
UTC

Hooked
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
 
Hooked
@bommes avatar
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
UTC quote
Thanks Jerryd for your reply.
Maybe the inner bearing, that hllow axle thing that is in the heart of the variator failed.

The first thing I noticed was that the acceleration was not as good as it used to be.
Thought it wad ue to the fact I've not been riding my Vespa for almost 2 years.
Maybe I got used tot the oumpf of a big bike.

Second came a litle hickup in the acceleration, felt a flat spot in pulling away.
Just a few kilomters later the whole thing went out.
Vario got stuck in the closed position, i.o.w. high gearing.
making acceleration nearly not possible but on the highway it would do 100km/u okay so rode home that way.

Yesterday the new parts arrived, I've gone for the Malossi variator + belt and a new stock outer variator disk (how's that thning called?, the one with the cooling fins on it)

Not got arround to installing the bits.
Will be cleaning out the variator housing first, checking the seals and gaskets.
OP
@bommes avatar
UTC

Hooked
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
 
Hooked
@bommes avatar
GTS 250 a.b.s.
Joined: UTC
Posts: 483
Location: Noord Brabant, Netherlands
UTC quote
Bite the bullet and went along and ordered a Malossi Multivar + a new belt and a Piaggio original outer pulley for the front variator.

External inline image provided by member with no explanatory text

With a bit of gasoline and a small brush I spend some time cleaning the whole inside out.

External inline image provided by member with no explanatory text

All put back together.
The new air ratchet worked like a treat. Took the clutch apart like it was nothing else.
Cleaned it all up and put the new Malossi spring in there.

External inline image provided by member with no explanatory text


Test ride also went well.
That was a long time ago that my Vespa had such a great acceleration.

External inline image provided by member with no explanatory text

Costs a bit but then again it turned out this was long over due maintenance. Facepalm emoticon

Next up is opening it all up again after lats say 200 or 300 km's to check and see where the oil/grease was coming from.
Can only be the gasket between the oilsump and main engine housing but just want to be sure.
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