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Yes, you are right.
That side has way more weight (Flywheel, clutch) and force (V-belt pulling on the crank) on it and thus it is recommended to use a strong bearing for it (The C3 one).off topic & FYI: a C3 bearing isn’t stronger, it has more play than a standard bearing. Maybe Vespa designed a C3 bearing to prevent/minimize excessive wear because of the tension of the belt? The bearing heats up more because of the tension?
Ok, thanks for clearing that up
Whats the difference on these two decomp kits?
Which one will you recomend me to buy?http://www.jmpbparts.com/decompressiestift-veer-citta-ciao.html
http://www.jmpbparts.com/decompressieset-citta.html
The first one is only for Malossi cilinder heads according to JMPB. I believe only for the 47mm head, not the 43 one.
The second one is for regular cilinder heads.Excellent DarkMagic.
I guess it will fit my Polini kit then?DarkMagician6 :
The first one is only for Malossi cilinder heads according to JMPB. I believe only for the 47mm head, not the 43 one.
The second one is for regular cilinder heads.Yes you will need the second more common one, but the Malossi decompression is not only for the 47mm head. It will also go on any other DEPS or Ipermatic replica heads.
Thanks for very useful info.
I was going to install the crank today, as this has been in the freezer all night.
Do I need to heat the bearings as well, or will they just slip on?Leave the bearings in their packaging and put them in boiled water for a couple of minutes. Some mild taps should be enough to place them.
Manage to install the bearings and crank tonight 😀
I’m very happy with the job, as the crank spinns freely after I have screw the two engine halves together =)
How come the piston have soooo much slack???
More questions.
The screw treads you see in this picture is missing from my Polini cylinder.
How do you fasten the top cover without this screw?
You dont this is an oldtimer cylinder your showing.
You will need this piece:
http://www.jmpbonderdelen.nl/citta-onderdelen/motordelen/diverse-motoronderdelen-gilera-citta/cilinderkoelkap-citta.html
http://www.jmpbonderdelen.nl/citta-onderdelen/motordelen/diverse-motoronderdelen-gilera-citta/cilinderkoelkap-clip-citta.htmlAha 😀
That clear things up, thanks 🙂
Maybe my Bravo have this clip already??
We will have to wait and see when I have taken the engine out of the frame.
Can someone tell me what is the differece between these two heads?
My Bravo original engine has the small one to the left.
My Polini engine has the one to the right.
Will this still fit in the Bravo?
You can edit a post and not post so many loose messages.
Difference is the cooling fans but doesnt matter mucht for your bravo take the one on the left with side fans.
Difference is the cooling fans but doesnt matter mucht for your bravo take the one on the left with side fans.
Ok, but I have bougth the Polini cylinder with the long fins, will this fit without any probelems?
What about this “slack” between the piston and bearing?
Is there any “shims” that make the bearing stay in the center of the crank?
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