so what about Jonsered saw engines for converting ??

I know a saw shop that has closed and I think the guy has a couple used Jonsered saws I could get cheap

Jim

The new Jonesreds look the same as Homelites



The Jonesred company is actually the daddy of the chainsaw as we know it. They had the first practical designs. They have remained in the forefront ever since.

As Far as converting engines, you should study your candidate's layout

Carbs above the flywheel are hard to contend with

side crankcase reed valves are awkward

Roller main bearings don't seem to work out as easy as ball mains.

Magnesium crankcases are dangerous to be aggressively cutting on

Look for ease of conversion like can the crankcase be separated from the saw frame and how are you going to mount the crankcase to the plane

is the coil mounted on the engine

is the carb mounted on the engine or the saw frame

Where is the carb and exhaust going to be

What will the likely all up weight be

Do you have a plane for it

thanks for the info

Jim

I have only done one, a 40cc "Big Red" the engine is of the highest qualty. I would say if you get it cheap enough go for it. This one was a lttle heavy, but built like a tank.

The Johnsered "Little John" model has a Quadra 35 CD engine in it.

w8ye - could you elaborate on this?I'm just starting into a big Stihl chainsaw (thread here). What is it about roller bearings that's a problem?

Also, should I be worried about using a hacksaw and a milling machine on a magnesium case? I assume you're talking about fire hazard from sparks, grinding, etc.

KD