Saturday 16 February 2008

Engine


I did this work a couple of weeks ago but not had time to do the blog, anyway, the bits came to finish the engine. The casings have had the inlet modified and milling to match the malossi kit, then they were rubbed down, etch primed and painted jet black.






I put the gearbox together with the new cruciform and selector shaft and t5 short 4th gear, not forgeting to check the shim gap. Then the malossi clutch plates were soaked in oil overnight then i put the clutch together with a polini straight cut gear up kit ( Maybe it would have been better to go for a cosa clutch but i already had the gear up and love the sound they make)




The casings were fitted with new bearings and seals then the christmas tree was put in followed by the main shaft with gears then the Mazzucchelli gas flow crank. New kick start stop buffers, kog and spring.



I then put the 2 halves of the casings together with a fresh gasket and bolted together using stainless steel nuts and washers. Checking that all moved freely and the crank run true. I slipped the clutch and torqued it up. Next on went the piston, studs, Cylinder and a modified pinasco head, then the stater plate, hp4 light flywheel, selector box, backplate, shoes and hub, the carb and cowlin are just resting on for the picture.



I am still waiting for the flywheel cover, it's coming with the headset from Scootrs. I have been given a date of 20th of this month. As soon as it arrives i will be able to get on with the paint job.

3 comments:

chewolf said...

hi there..my name is mie from malaysia..i wanna ask u some question bcoz im confius now..ok..

-is the reed valve system suitable for mazzucchelli crankshaft like u used?
-if i wanna put malossi 210kit on my px,what kind of crankshaft i can use?
-did u use full circle crankshaft?

Rob said...

Hi Mie

I have not fitted a reed valve instead i am using a modified standard set up. You can use any crank with a reed valve kit but to get the best results a full circle crank is best along with lots of modifications to the casings.

Rob

Rob said...

look at this site http://dirtyrocket.blogspot.com/ it has got good info on reed valves