.15 cox engine différence Need of information

Yes i have a numérique caliper I think it will be the same as the sportsman But it is almost sure that the cylinder will fit unless it different threads Me the only .15 cox that I have is som sportsman no tee dee or olympique It's a lack on my part I used to know a bit of everything on cox engine And it's the only model that I don't own yet as the .15 médalion or tee dee sale à bit expensive 10 years ago I saw several for sale Prices around $ 80,120 for new engines I always prefer the smallest that's why I don't have .15 I preferred to buy .9 I will one day own them all the difrent size and models

My knowledge on .15 engine is limited To fit Cox .15 Medallion Throttle Control Assembly
Someone surely knows its if the larger or the thin wall cylinder that fit this What cylinder I need ??? rc Or large cylinder model without rc ring its for the fatals flaws engine I haven't yet received the motor That I order upgrades for him y have two type cylinder old sportsman taper thin wall and the alredy rc médalion I still don't know if the sportsman's piston fit on the crankchaft one way or another I will soon know all this

David,

The crankpin of the .15 RC Medallion I got from Batjack  has a diameter of exactly 3.9mm.



The piston has a gudgeon pin, and the conrod has an oiling hole on the big end. The RC muffler fits the thin wall cylinder.

Thank you for the information I will surely be able to use the sportsman cylinder with this rc exaust I didn't measure the crankpin, I'm going to do it as soon as I finish my coffee My god make it work

positive results that should do it is the same diameter I will be able to use my sportsman's new cylinder wit the rc exaust Because it would seem that made on the thin wall cylinder tink its the Good parts from the right time frame I can't wait to bring it to life