Chainsaw Repair

Quote from: Magnus on January 17, 2014, 12:24:53 pm

There was a rek out to dealers in early 90's to put in two of the thick ones to increase compression volume and by that allow larger amount amount of fuel/air above piston that can expand and get a bit more torq out of them.

Why would you put a 365 piston in a 262?

Just an experiment to see how the saw would run using a non windowed piston that was 1.5mm taller in compression height. Well the idea of two gaskets as the rek said is a very intriguing option. If the 365 piston does not work out, I will try a 262 piston and two gaskets to see. Thanks for the tip!

Hmmmm, a little more thought on this, you mentioned that the advice to dealers was in the early 90s. The first two specifications on the saws used non-decomp Kolben Schmidt cylinders which were know to have a smaller combustion chamber than the later saws with a Mahle cylinder. I wonder if the advice to dealers was about getting a little more out of the KS cylinders. And I further wonder if it applies to both the KS and Mahle cylinders or only the KS?

I am in Sweden so perhaps it is market differances. I don't see many 262 without decomp here...
There was Gilardoni cylinders to, I think I still have one.
Was it not on here that was discussed recently?

The advice was mainly to 254's but would work for any saw I guess..
Problem is to get it tight and keep it tight. I glued mine with "Form a gasket".