McCulloch Chain Saws

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Well got the PM60 I saved the other day running. Tried it at first without pulling carb. Fired right off but flooded out and died, then proceeded to fill motor and run fuel out exhaust. So pulled carb down presumably looking for a stuck needle. Carb was super clean, but needle didn't seem to be seating. So stretched the spring a tiny bit and put it all back together. Fired it back off again and runs like a top.

While I had carb off took a peek at piston and cylinder. Look brand new. Saws to run real nice with a nice crisp throttle response. Can't wait to stick it in some wood. I think the saw cleaned up real nice.20220323_224024.jpg20220323_230421.jpg20220323_230403.jpg20220323_231551.jpg
 
The 8200 has a modern three piece crank and rod with single needle cage bearing and 'floating' wrist pin secured by circlips. But trust me, the clips are more for show than function from my experience -- at least without some heat to expand the pin bosses for removing the pin without a press. They are also nearly impossible to remove without notching the boss for slipping a pic underneath to pop them, or at least one) out. A helper and third hand is an alternative, but expect some bleeding from errant (and frustrated) pic pokes along the way.

Thanks Pogo
The saw has great compression and the bearings have no slop at all.
So I'm not removing the jug unless I have a air leak at the cylinder base.
I have replaced the seals.
At this time I don't know what crank it does have.
 
The 8200 as shown in the provided photos has 6 total bolts holding the cylinder to the oil tank. The other 82cc saws have 8. Thats the dead giveaway to an 8200 without taking it apart to see the crankshaft.
Thanks Vinny.
I have a leak at the intake boot that I will replace it today.
I'll check out the number of bolts also.
 
Here's a PM8200 IPL that may come in handy if you're faced with a few of em. You won't find pistons for em, so save what you have to re-condition and re-use if possible. That's what I had to do with mine -- or pay $90 up front for the 'possibility' of getting one through a dealer near me -- who was getting them from Bob Johnson anyway. Didn't know of him back then, myself.

There should be one bracket attachment point on the cylinder for the canister style muffler.
Thanks again Pogo.
It did have the muffler bracket.
 
The 8200 as shown in the provided photos has 6 total bolts holding the cylinder to the oil tank. The other 82cc saws have 8. Thats the dead giveaway to an 8200 without taking it apart to see the crankshaft.
It's 8 bolts Vinny.
I guess all that matters is it's a 82cc Q port Mac......and it runs.
 
Well got the PM60 I saved the other day running. Tried it at first without pulling carb. Fired right off but flooded out and died, then proceeded to fill motor and run fuel out exhaust. So pulled carb down presumably looking for a stuck needle. Carb was super clean, but needle didn't seem to be seating. So stretched the spring a tiny bit and put it all back together. Fired it back off again and runs like a top.

While I had carb off took a peek at piston and cylinder. Look brand new. Saws to run real nice with a nice crisp throttle response. Can't wait to stick it in some wood. I think the saw cleaned up real nice.View attachment 975887View attachment 975888View attachment 975889View attachment 975890

Thats a dandy, looks great.
 
Thanks! It looks like more sellers are making gasket kits for the 10 series saws. I see LRB has a kit now that I haven't seen before. It's nice to have options. I've read somewhere that some sellers will laser cut gaskets and some die cut. I wonder if laser cut gaskets are just as good or does the heat of the laser burn and dry out the material and make it brittle.

Sent from my moto g(7) optimo maxx(XT1955DL) using Tapatalk
I laser cut all my gaskets and sell on eBay. It doesn’t dry anything out but does seal edge so that nothing leaks in and break down material. Only OEM gaskets are die cut. Thicker gaskets if not laser cut are done with a CNC mill.
 
I made a cheap HL324A copy fit one of my 550s pretty neatly. Not sure if anyone else has tried these things? Seems hard to get the mixtures right. The pop-off was way high at 18-20psi so I installed the lighest spring I had to bring it back to 12-14psi and getting a good seal. Might have helped a bit, but I am still having troubles in the transition from low to high and the revs holding on for a bit after the throttle is released. Have messed a fair bit with both needles to get the right settings, but it still is pretty ordinary.

 
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