Chainsaw Repair

The only reason I got this thing is the fact at least in this area it's rather rare .In my life time I've seen less than half a dozen .3 or 4 that ran and a few that did not .

It was in need of some work when I got it.The anti vib system had broken the tabs off the casting at the front part of the lower handle .Somebody did a hill billy fix with a piece of perforated metal strapping and hose clamps and JB weld .

I did a redneck fix with aircraft grade aluminum plate and M5 button head cap screws .Had to make a new dampner in the handle .Works fine

Now the oiler which damned near drove me nuts .First  I had to figure out how the thing worked .

It's a crankshaft operated rotary driven internally  from a worm gear inside the crankcase .If the saw is running it's pumping oil or should.It didn't .

Evidently the oil flows through a manual oiler which is just a piston with an o-ring and a pair of metal reed type check valves .New o-ring still no oil .Pulled the rotary pump apart .installed a new o-ring ,no oil .Took the check valves off ,cleaned the mating surface of the pump and checks,primed it,one little squirt .Now I'm pizzed .

So I noticed a plug in the front portion of the rotary,shown in the photo .Out came the plug ,squirted a bunch of oil in it,started the saw.My Lawdy it blew oil like old spindle top .One more victory

Another good ole Redneck save. So you sink it in a cut yet?

Yes I did make a few cuts with it .First with a 32" before I rebuild the carb .It faltered a bit .After I rebuilt the carb and defeated the governor it did much better ,24" that time .The oak was close to 30" I suppose .

It had sat not started for about two weeks and I fired it up night before last after I took the pictures .4 pulls .

Just in casual observation one thing it could stand is a little wider exhaust port .It's the exact bore and stroke of a Husqvarna 2100 but doesn't in my opinion have enough port size for it's displacement  .

Then again thinking about it, if it was governed for the 8,500 as stated the porting would support that speed .I have no doubt it could easily crank out over 11,000 with very little work .

As it stands now for what I want it to do it has plenty enough power without doing anything .I did however pull the spark arrester which is an interesting way to do an arrester  .This leaves a baffled muffler with the baffle only on one side and now two aprox. 5/8" ports on both the baffled and unbaffled sides .