Conrod and piston interchangable from nova to rossi pixi

Reply Subscribe

Thread Tools

Search this Thread

11-30-2003, 02:56 PM

#16

FAST1

Tech Adept

Join Date: Apr 2003

Posts: 246

Trader Rating: 0

Quote:

Originally posted by mtx3racer
well, my friends motor won't work.

SUUURRRE!!

"Your friend's motor"

11-30-2003, 03:01 PM

#17

FAST1

Tech Adept

Join Date: Apr 2003

Posts: 246

Trader Rating: 0

Re: Re: Conrod and piston interchangable from nova to rossi pixi

Quote:

Originally posted by Slotmachine

As far as taking the shims out,DOOOOOOOHHH!!!!!!!!!!!
Dont you run 40% anyway? You should have added a shim or two instead!!

Agree!!

Who is the idiot that told you to run less shims on with 40%...........
Your friend!?!?

12-01-2003, 11:37 AM

#18

EdwardN

Tech Elite

iTrader: (1)

Join Date: May 2003

Location: SoCal

Posts: 2,161

Trader Rating: 1 (100%+)

Re: breakage

Quote:

Originally posted by Slotmachine
Hey motor man I found out how he broke the piston, he took the motor apart and I`m thinking he turned the p/s combo 180%
and the piston skirt hit the crank! DOOOOOHHHHHHH!!!!

I have never work on current Rossi engines, will not know their piston's scirt design, but if talk about Novas ( short rod version-25mm) or Sirio or OS, if you turn your piston with conrod arround (180degree), it will not perfrom and be very fast, for fact. The cut on the piston will face exhaust port when piston goes up , it will open underneath cranckcase chamber and will loose vacuum ( no sucksion from carb). On the way back down it will not create anouhg peressure to transfer mixture from bottom chamber to combustion chamber. It might work, but for sure no perfromance.

( I wasn't talking about the scirt hit the cranckshaft-it defenetly will happened), I am talking about perfromance.