Modern Vespa

Well, most engines we worked on were split for the first time, but there were cases with faults from the factory and they had no problems. We just spread a bit more sealant on the problematic areas. The best thing about this sealant is since it's anaerobic it doesn't start to cure till you tighten the cases. And easy to clean up...

So you can't put too much on, is that what you're saying?

havent yet published my review about the vone case
wanna do another engine first with such a case

find photos and comments on my fb page
https://www.facebook.com/media/set/?vanity=freakmoped&set=a.2188676854573778


big dissappointment
1) these unneeded malossi logos around the case, wtf?!
i did let it weld, for putting the engine number in
https://www.facebook.com/freakmoped/photos/a.2188676854573778/2651039391670853
https://www.facebook.com/freakmoped/photos/a.2188676854573778/2189739451134185

2) really bad:
at two cases (not just one!) the rotary valve tolerance of 0,05mm as NOT provided, with 4 typical cranks.
https://www.facebook.com/freakmoped/photos/a.2188676854573778/2525775337530593
so a new engine cases, needed a rotary valve pad redoing... WTF

https://www.facebook.com/freakmoped/photos/a.2188676854573778/2470911849683609


sip wasnt interested in this quite important feedback by FMP (which is totally fine for me) so they earned this here: what did they say, not interested in any of your feedback, we have our own tester, u have no experience and only share hot air, and first of all, before u get any info, you personally come introducing yourself and the typical: u only moan around to gain some discount % (totally wrong) not only one of the two ceo´s also a projectmanager attacked me ISO 9001 certified OLE #sip #ISO9001FAIL

they did not mention in sip shop which cranks fit
malossi does on its page indirectly in the text
sip does NOT, dont know if its on purpose or not.
didnt get the answer to my q: which cranks do actually fit in this case
sent it 5x, was ignored.

3) stronger around the primary nut as a PLUS

but sadly at the same time
4) a MINUS, as the primary nut anti case cracking trick is not possible,
https://youtu.be/HUxF_t9PZB0
as the needed area is missing sadly = 3) thicker doesnt help as much as it would...

its like this:
https://www.facebook.com/freakmoped/photos/a.2188676854573778/2838917582883032

should be like this:
https://www.facebook.com/freakmoped/photos/a.2188676854573778/2838917462883044

4) surprising was, that the sealing surfaces are not 100% perfectly machined but have potential

5) funny was: the recommended sealing mass is not heat resistance enough, so dont use it at cylinder & -head


but overall:
good hardware, i like it
esp the additional bolt at the weak oilsucker spot & wider sealing surfaces

https://www.facebook.com/freakmoped/photos/a.2188676854573778/2461354177306043

strengthened case in general

is it needed for tuning?
no, its not, piaggio cases are fine
(pinasco are not a choice. no one needs loose bearings/bolts etc)


yes its fine, but ensure rv tolerance 0,05mm is provided at the VONE

weired here. sometimes it shows the post, sometimes not.
sry folks!

Resurrecting this. Malossi shows some really nice new products in this year's EICMA...

Very cool tidbits! If a company spends all that time to make their own axle shaft, loose gears, and shift cross, would it be worth it to make a cruciform with 6 legs? I'm just wondering how much more durable it could be.

As a newb to Vespas, I am confused about what you can and cannot put into these cases in terms of gearboxes, cranks, piston kits, etc. I know there is a rotary and reed valve version and that is reinforced in certain places.

I'm assuming that late PX gearbox internals would have to be used, but what about cranks and cylinder kits? Could a 200+ cylinder be used? Are you stuck with using Malossi performance stuff, or is it anything goes?

Besides the reinforced areas, how does it differ from the Malossi "stock" case or the Pinasco case?

Thanks and apologies for what is probably obvious for most enthusiasts.

I wonder what the go is with that drive shaft and the large bit of casting in the middle?

They needed a flat surface for the malossi logo. For when you split the cases and have a crowd of people watching. chaching!

(a) Anything goes (as long as you're willing to deal with the inevitable issues of making parts from various manufacturers fit together). For an example (shameless self promotion), see here: Building a "Boss Hog" engine

(b) Original Piaggio cases were built to a price, and they have every bit of metal they need and not a skerrick more. When it comes time for porting, and upgrading, they can often have air where you'd like metal. The Malossi cases are built more to a standard than a price, and they have lots of shiny metal to hack off in the places you want to, and plenty left over for strength.

Thank you.

That makes sense. Seems somewhat like VW type 4 and probably many other engines. Even with high quality aftermarket parts there is a lot of measuring and hand fitting. Cheap parts even worse. Things that will cause unintended wear and possibly even catastrophic failure unless you know what to check. So I'm imagining it's not LEGOs. I will read your thread. Thanks again.

Malossi axle is out, pretty pricey. Looks beefy enough...

https://www.malossistore.com/en/gr/vespa-pinwheel-shaft-6718792b-P