Pinasco oil seal fix... new Malossi 150 cases and 63mm iron
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Molto Verboso
1980 P200E project, 2005 Stella Mal 177 MKIII in pieces
Joined: 20 Jul 2018
Posts: 1128
Location: Staten Island, NY
Tue Nov 05, 2019 6:37 pm quote
https://scooterlab.uk/eicma-2020-quick-live-roundup-news-2/

You just gotta shell out somewhere in the range of $600-$2000 for new cases to get the benefit of an improved $10 part!

https://youtu.be/q5njcFY1hCU

Last edited by swiss1939 on Fri Nov 08, 2019 7:38 am; edited 2 times in total
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 7101
Location: Victoria, Australia
Thu Nov 07, 2019 6:20 pm quote
It's a good idea. You could theoretically replace both bearing and seal in the scooter.
Molto Verboso
PX221 Malossi, O tuned PX200 and some motorbikes
Joined: 14 Jun 2017
Posts: 1557
Location: London UK
Thu Nov 07, 2019 8:14 pm quote
Fantastic idea. I hope Malossi do the same revision on their new casings.

Clutch side seals falling out on tuned scooters is such a big problem. Like a badge of honour. Is like you know when your scooter has achieved high bhp because the seal does actually fall out.

This is way better than all the Loctite and dot punching to try to get a seal to hold. I have seen a few creative ways to hold them in with screws and brackets but don't have any pictures. If anyone has any post them up.
Molto Verboso
1980 P200E project, 2005 Stella Mal 177 MKIII in pieces
Joined: 20 Jul 2018
Posts: 1128
Location: Staten Island, NY
Thu Nov 07, 2019 8:52 pm quote
I'm not knocking it. I'm just saying it sucks you gotta buy new engine cases to get that benefit!
Molto Verboso
One or two fun scoots....nothing too precious
Joined: 17 Jul 2013
Posts: 1216
Location: UK (South East)
Fri Nov 08, 2019 12:32 am quote
Jack, how do you feel about the older style rubber seal for the P2? Does that lip on the seal and the groove in the casing that it locks into create a more stable fit than the metal seal? The reason I ask is that BGM has recently introduced a high quality FKM/Viton version of the old style rubber seal.
Molto Verboso
1980 P200E project, 2005 Stella Mal 177 MKIII in pieces
Joined: 20 Jul 2018
Posts: 1128
Location: Staten Island, NY
Fri Nov 08, 2019 7:37 am quote
Also Malossi has new cases for 150 kits, with the updated iron cylinder that replaced the 166 kit! 63mm bore iron version of the aluminum mhr!

https://scooterlab.uk/eicma-2020-quick-live-roundup-news-2-2/
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Fri Nov 08, 2019 1:49 pm quote
so basically they reinvented the GS/SS clutch side seal setup
Molto Verboso
1979 P150X, 1983 P200E, 1987 T5, 1996 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
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Location: Veria, Greece
Fri Nov 08, 2019 2:24 pm quote
Beat me to it
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Fri Nov 08, 2019 3:12 pm quote
keep in mind that assembly is more rushed with this setup as you have to install the seal and then bearing before it cools back down.
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 7101
Location: Victoria, Australia
Fri Nov 08, 2019 4:06 pm quote
swiss1939 wrote:
Also Malossi has new cases for 150 kits, with the updated iron cylinder that replaced the 166 kit! 63mm bore iron version of the aluminum mhr!

https://scooterlab.uk/eicma-2020-quick-live-roundup-news-2-2/
The cast iron 177 isn't an MHR... in some places it's described as a Sport. But then no specs to see the difference between the aluminum Sport and the cast iron one. A mate has fitted one, I'm yet to give it a test ride!
Molto Verboso
1980 P200E project, 2005 Stella Mal 177 MKIII in pieces
Joined: 20 Jul 2018
Posts: 1128
Location: Staten Island, NY
Fri Nov 08, 2019 4:23 pm quote
Ginch wrote:
swiss1939 wrote:
Also Malossi has new cases for 150 kits, with the updated iron cylinder that replaced the 166 kit! 63mm bore iron version of the aluminum mhr!

https://scooterlab.uk/eicma-2020-quick-live-roundup-news-2-2/
The cast iron 177 isn't an MHR... in some places it's described as a Sport. But then no specs to see the difference between the aluminum Sport and the cast iron one. A mate has fitted one, I'm yet to give it a test ride!
Sorry, you are correct. They label the cylinders designed for 57mm as sport and 60mm as MHR. This one is a sport. I'm assuming this is why they discontinued the 166mkIII kit I bought a few months ago.
Molto Verboso
PX221 Malossi, O tuned PX200 and some motorbikes
Joined: 14 Jun 2017
Posts: 1557
Location: London UK
Fri Nov 08, 2019 6:57 pm quote
swa45 wrote:
Jack, how do you feel about the older style rubber seal for the P2? Does that lip on the seal and the groove in the casing that it locks into create a more stable fit than the metal seal? The reason I ask is that BGM has recently introduced a high quality FKM/Viton version of the old style rubber seal.
I think your luck is about the same. Three issues that make the clutch seal come out on tuned engines are, the extra heat, wouldn't take much extra heat to loosen it. The rpm, tuned P engines often rev to 9000rpm. And the suction force from that big fat expansion that makes them go so well.

I have seen metal and rubber seals both come out. The rubber ones tend to do less damage when they do. Noticing early is so important.

Can't believe they changed to this PX seal from what was in the GS. Own goal.
Molto Verboso
1980 P200E project, 2005 Stella Mal 177 MKIII in pieces
Joined: 20 Jul 2018
Posts: 1128
Location: Staten Island, NY
Sat Nov 09, 2019 12:08 pm quote
Jack221 wrote:
swa45 wrote:
Jack, how do you feel about the older style rubber seal for the P2? Does that lip on the seal and the groove in the casing that it locks into create a more stable fit than the metal seal? The reason I ask is that BGM has recently introduced a high quality FKM/Viton version of the old style rubber seal.
I think your luck is about the same. Three issues that make the clutch seal come out on tuned engines are, the extra heat, wouldn't take much extra heat to loosen it. The rpm, tuned P engines often rev to 9000rpm. And the suction force from that big fat expansion that makes them go so well.

I have seen metal and rubber seals both come out. The rubber ones tend to do less damage when they do. Noticing early is so important.

Can't believe they changed to this PX seal from what was in the GS. Own goal.
So best method to hopefully prevent it, without this style case, is use red loctite around it to keep it in place and pray for the best?
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