028 piston rings sizes ???

[smetr333]

ok i c the 028 have 3 different sizes of piston rings 42mm,44mm and 46mm.
Will it have a # on the piston or cylinder so i can get the right 1. sry im new 2 the chainsaws
and do not know.

[Kevin]

Which model of 028 is it?
If in doubt you can measure it.

[smetr333]

It is a 028 av w/b. I did a measure and it is 1.73 so if im right it will be a 44mm?but will it have a casting #on it?thanks kevin

[Kevin]

The AV and WB have a 42mm bore, 1.65.   43cc

The AVEQWB and AVEQ have 44mm bore, 1.73.   47cc

I don't know if they'll be marked.

[smetr333]

Thanks it is a aveq so it is 44mm thank you good day.

[olyman]

also--if need sizes, can go to  www.acresinternet.com  and when get to the site--go to chainsaw corner--then under stihl--then model no, and he normally lists specs---