.15 cvm marine cooling head to adapt to .12 cv buggy motor

[Andris Golts]

O.S. Max manufactures the .15 cvm marine cooling head #osmg5179 what i need to know if it could be modified to fit the O.S. Max .12 c.v #11241 buggy motor i called tech support they could not aswer my ?" didnt even have dimesions for head bolt spacing.

 

[Saugling]

yes you can modify the .15 coolinghead to fit the .12 engine. the only difference between the two CVs is the bore of the sleeve. so you have to reduce the diameter of the coolinghead's lower part (the one that fits into the sleeve) by about 1.5mm