Piston Ring Sizes for Poulan Saws (34cc versus 38cc) 25DA versus S25, S25AV, S25CVA, S25DA
I recently became confused trying to figure out which piston rings to buy for a Wright 122 saw.
The problem comes from the fact that there are TWO different cylinder sizes 34cc and 38cc.
At first glance, the model names look very similar - they have "Poulan" and "25" in them - that's the confusing part.
I ended buying BOTH sizes. If you make that mistake on cylinders or pistons.. it becomes expensive very quickly.
To save the next person a lot of searching and thrashing, these are the results.
I have also attached a picture showing the rings side by side.
It is important to realize that 25DA and S25DA are different sizes!! Easy for a newbie to miss!!
34cc - Wright 122 , Poulan 25DA (notice there is NOT an "S" here)
Ring Part # 530023352 - Cylinder Volume: 34cc (
2.1cu.in) - Bore: 36.5mm (1.4375in)
http://www.acresinternet.com/cscc.n...f0cbecefee7fe4b988256bfc000cbe71?OpenDocument
38cc - Poulan Pro S25, S25AV, S25CVA, S25DA
Ring Part # 530029391 - Cylinder Volume: 38cc (
2.3cu.in) - Bore: 38.1mm (1.5in)
http://www.acresinternet.com/cscc.n...38757ddc6ffdf80c88256bfa0018d3eb?OpenDocument