MCCULLOCH The official McCulloch thread

[NZsaws]

Gidday Max
It's a two piece but has the pawls for a RH start so maybe they were using up some old stock?
Sort of wished I had filled the holes bit too late now.
The saw looks hardly used but when I opened it up the ring locators had disappeared. Some dents on squish band but damage minimal. Have put in new ones and have new rings.

 

[hacskaroly]

Some dents on squish band but damage minimal.

I have a 10-10 where the rings grenaded. There are still fragments that are firmly wedged into the squish band.

 

[heimannm]

NZ - On the PTO side I push both the bearing and the seal all the way through, then press the new parts in from each side. I have never even though about trying to install the seal with the insert installed in the crankcase. In order to get the seal over the shoulder on the shaft I have the tapered sleeve.

On the flywheel side, I just use a large socket with an O.D. that nearly matches the O.D of the seal and press them in till the surface is flush.

Someone has replaced the clutch that was on the saw originally with one from a RH start saw. I think it is unlikely that would have been done at the factory.

Mark

 

[heimannm]

 

[edju1958]

I was supposed top have a "simple" repair today - replace a switch on another PM659.That "simple" job turned into a nightmare.I couldn't get 3 of the 4 screws out of the fan housing to save my life.I ended up heating those 3 screws for anywhere between 7-10 minutes at 1500* with a heat gun.One of the bosses was so wallowed out that a helicoil won't even fix it.I figure I might fill the boss with JB Weld & just set the screw in it while still wet.Of course the 2 screws that hold the switch plate onto the cylinder were missing.The saw needed to be seriously cleaned as well.I did get the saw back together minus a few screws that can be added on later.

 

[NZsaws]

NZ - On the PTO side I push both the bearing and the seal all the way through, then press the new parts in from each side. I have never even though about trying to install the seal with the insert installed in the crankcase. In order to get the seal over the shoulder on the shaft I have the tapered sleeve.

On the flywheel side, I just use a large socket with an O.D. that nearly matches the O.D of the seal and press them in till the surface is flush.

Someone has replaced the clutch that was on the saw originally with one from a RH start saw. I think it is unlikely that would have been done at the factory.

Mark

Thanks Mark.
I recon I'm good to go...
Stand back and watch me screw it up

 

[hacskaroly]

Stand back and watch me screw it up

Pictures, we want pictures, just to prove that we are not the only ones who screw stuff up...

 

[Max the Mac Man]

Gidday Max
It's a two piece but has the pawls for a RH start so maybe they were using up some old stock?
Sort of wished I had filled the holes bit too late now.
The saw looks hardly used but when I opened it up the ring locators had disappeared. Some dents on squish band but damage minimal. Have put in new ones and have new rings.

As Mark said the clutch is not from the factory. A note the early SP 80 saws had a thick ring pistons in them instead of thin ring. Make sure you have the correct rings for your piston.