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@steelbytes avatar
UTC

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2019 GTS300 Supertech E3 59,000km
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@steelbytes avatar
2019 GTS300 Supertech E3 59,000km
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UTC quote
I'd happily buy the buzzetti tool (5658?) but including shipping it ends up being more than 4 times the cost of this one on aliexpress.

Does anyone know if the dimensions listed in this pic are suitable for a GTS clutch (malossi)? I don't currently have my transmission in pieces so can't measure it myself.


https://www.aliexpress.com/item/1005002217807711.html
Forum member supplied image with no explanatory text
@mike_holland avatar
UTC

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UTC quote
I use a short piece of wood with a hole large enough to access the 46 mm nut. I place the clutch on the floor, position the wood hole on top, press one side of the piece of wood with my knee and the other side with my left hand, and then do up the nut. I then hold the clutch gently in a vice to finish the job with a torque wrench. I use my impact driver for undoing it.
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UTC quote
Mike Holland wrote:
I use a short piece of wood with a hole large enough to access the 46 mm nut. I place the clutch on the floor, position the wood hole on top, press one side of the piece of wood with my knee and the other side with my left hand, and then do up the nut. I then hold the clutch gently in a vice to finish the job with a torque wrench. I use my impact driver for undoing it.
I've considered some home hack like that.

previously when replacing the clutch I used impact to undo and redo. really felt uncomfortable not being able to get the right torque. This is why I'm considering getting a proper tool.


Also, want to get the other specialist tool to protect the seals when taking the driven pulley apart. Peter Stevens can get it for me for AU$46 and a several week wait. But sourcing the buzzetti compression tool without paying crazy shipping costs ... that's why I'm wondering about the aliexpress mentioned in my post.
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UTC quote
Clutch diameter is 134mm
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UTC

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UTC quote
Motovista wrote:
Clutch diameter is 134mm
thanks. any idea on the diam of the pulley and the height if the total stack?
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UTC

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UTC quote
That's about the same price I paid for mine.

Height depends on the spring length. You still have to squeeze the whole assembly into the tool for reassembly.
⚠️ Last edited by waspmike on UTC; edited 1 time
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Hope this helps.

These specs are for a GTS300 Stock Clutch and measured with a caliper. Measurements should be very close but cannot guarantee precision and accuracy .

Outer Pulley Diameter: ~151.8mm
Height to the top of the clutch nut: ~86.9mm

Glad to pull other measurements required.
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UTC quote
waspmike wrote:
That's about the same price I paid for mine.
which one? which exact model?

pretty much no matter where I look the buzzetti 5658 (which is what I have been recommended) including shipping works out to be 3-4 times the cost of the aliexpress above. damn international shipping kills me from us/eu, that's why I often have to look for alternatives.
waspmike wrote:
Height depends on the spring length. You still have to squeeze the whole assembly into the tool for reassembly.
yes and no. I can squeeze it enough to get the clutch nut started and then stick it in this contraption. it's only the torqueing it up that I really want this for. last time I was able to kneel on it to get the nut on and then use an impact to tighten it but am not really happy doing that.
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UTC

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UTC quote
sdnyer wrote:
Outer Pulley Diameter: ~151.8mm
Height to the top of the clutch nut: ~86.9mm
151.8mm hmm that looks like it would be a real close fit. the pic is frustratingly only partially helpful so it's still a guess. it says 160 high but is that inner or outer? and is it also 160 wide? what is the thickness of the steel - maybe 3-4mm? maybe 160-4x2 = 152mm wide? guessing guessing
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UTC quote
eventually got a vendor on aliexpress to give me the dimensions. tight, but will fit the approx 152mm of the gts that sdnyer measured

think I'll give it a shot. sure the pins probably won't match my malossi clutch and therfore will have to be cut off and holes drilled but I doubt the buzzetti would either
Forum member supplied image with no explanatory text
UTC

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UTC quote
steelbytes wrote:
eventually got a vendor on aliexpress to give me the dimensions. tight, but will fit the approx 152mm of the gts that sdnyer measured

think I'll give it a shot. sure the pins probably won't match my malossi clutch and therfore will have to be cut off and holes drilled but I doubt the buzzetti would either
Cool. Please keep us posted!!
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UTC quote
sdnyer wrote:
Cool. Please keep us posted!!
Didn't actually undo it today but had the transmission open for other stuff. So here's a trial fit with a malossi clutch. The pins look like they'll stop it turning - maybe. Else will have to cut them and drill holes and stick some bolts. (Pins definitely don't match oem clutch). See red dots for pin locations in 4th pic
Just wide enough
Just wide enough
Forum member supplied image with no explanatory text
Can just see where the pins might adequately lock in the malossi clutch (2 visible)
Can just see where the pins might adequately lock in the malossi clutch (2 visible)
Pin locations
Pin locations
UTC

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UTC quote
steelbytes wrote:
Didn't actually undo it today but had the transmission open for other stuff. So here's a trial fit with a malossi clutch. The pins look like they'll stop it turning - maybe. Else will have to cut them and drill holes and stick some bolts. (Pins definitely don't match oem clutch). See red dots for pin locations in 4th pic
Thanks for sharing the photos. Looks good and glad it's working out.
UTC

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UTC quote
Jfyi, there is a tool that Scooterwest sells that prevents the seal lip from rolling when you reassemble your clutch. https://www.scooterwest.com/clutch-seal-tool-modern-vespa-piaggio-tool62.html

I created a tapered tool that you can 3D print. If interested I can send you the STL.
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@steelbytes avatar
UTC

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2019 GTS300 Supertech E3 59,000km
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@steelbytes avatar
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UTC quote
sdnyer wrote:
Jfyi, there is a tool that Scooterwest sells that prevents the seal lip from rolling when you reassemble your clutch. https://www.scooterwest.com/clutch-seal-tool-modern-vespa-piaggio-tool62.html

I created a tapered tool that you can 3D print. If interested I can send you the STL.
Yes please 😀
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UTC quote
steelbytes wrote:
Yes please 😀
.STL files can't be attached. Please PM me your email and I will get it over to you.
UTC

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UTC quote
Rename the file extension to .stl. You will probably want to sand it down a bit after printing. Per Robot's video grease the seal lip when you are sliding it onto the clutch.
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@steelbytes avatar
UTC

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UTC quote
sdnyer wrote:
Rename the file extension to .stl. You will probably want to sand it down a bit after printing. Per Robot's video grease the seal lip when you are sliding it onto the clutch.
thanks, looks lovely. will print it soon-ish
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UTC quote
I used two C-clamps to take the pressure off the 45mm nut. Using my impact wrench with the 45mm socket it was easy to get off. Releasing the c-clamps was a bit scary but worked out OK. I looked at the clutch press form Scooterwest, but 70 bucks was just too high. It's not like I'm doing this all the time.

One thing though, I developed a small oil leak after installing a Malossi Multivar and spring. It's driving me crazy sorting it out.
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