Chainsaw Repair

..... also used moly type in iron liners as well.

was mentioned in another thread, that some OEM cylinders were coated with chrome (homeowner grade?), and some with nikasil (pro grade?).  do the OEM's use different coating for each? ....... or do they just use cast or ductile iron rings for everything?

different ring coatings:  http://www.hastingsmfg.com/ServiceTips/ring_set_composition_recommendat.htm

not reccomended to use chrome on chrome:  http://www.hastingsmfg.com/ServiceTips/piston_rings_in_chrome_cylinders.htm

cast vs. ductile:  http://www.differencebetween.com/difference-between-ductile-iron-and-vs-cast-iron/

regards
-joe