Chainsaw Repair

I've found that a 395 piston runs really well in the 2100. 

Isn't the crown height way off?  IIRC, the jug has to be lowered quite a bit to get things in line.  I'd rather not cut that much from a good cylinder if possible...

Thin husky rings are below 1mm. (.8-.9) If I remember correctly

In regards to ring compatibility, are you guys referring to old school hard chrome bores with the porous **** looking appearance?   

Quote from: srcarr52 on November 10, 2014, 02:45:17 pm

I've found that a 395 piston runs really well in the 2100. 

Isn't the crown height way off?  IIRC, the jug has to be lowered quite a bit to get things in line.  I'd rather not cut that much from a good cylinder if possible...

You do have to cut some off the base to make it work but not enough to get concerned about the flange thickness.  I was still able to take 0.010" out of the squish and keep the intake timing below 157 deg duration.

For those of us who are already doing machine work it's a good option.

I was doing draw bench internal mandrels that were 52100 steel.

To the bare eye they looked smooth as a baby's behind but I bet under even a 10 power eye piece, you could see cracks and holes?

Wiseco uses a thin ring and that is what there setup for when cutting the ring groove , a thick ring breaks when made to turn a real high rpm so that is why the thin ring . Same thing a single ring is way better than a double ring setup at high rpms , the ring lad will break between the 2 rings and that will spoil your day pretty fast . The chrome I'm taking about is what is in most of todays saw bores like the 3120 , 281, 372, 2100. You put a ring meant for say a cast iron bore and it will wipe out the bore in no time , Wiseco could have a ring for 56mm in chrome bore I just donot know but thought I asked and the answer was no