MCCULLOCH The official McCulloch thread

[Al Smith]

The mention of shiming the coil holds true using for example an 850 cylinder assembly with an 805 flywheel ..Worked my behind off replacing the parts on an 805 only to hang it up from a prime bottle with straight gas .Got a complete early 850 and just replaced the entire engine .Runs great,only a Mac expert could tell it's not a complete stock intact 805

 

[lehman live edge slab]

Been looking at recoil repair videos for the 10 series since I have another left hand start 10-10 automatic that will run I’m sure. Had sharp chain and it was the rewind that was locked up not the saw. Turns over nice blue spark, good compression and a clean tank that smells slightly of old gas because saw I don’t think been run for awhile. Probably since rewind broke. So all 11 saws I got on the auction pull over smooth with compression.
Bid on 12 saws and for some reason the mini mac disappeared out of them all. From what I’ve read really no loss . Anybody know if the rewind or parts from a 1-61 gear drive I have that’s locked solid will work on a 1-71. No ideas what’s wrong with 1-71 rewind may be fine just missing rope but wondering in advance in case I need parts.

 

[heimannm]

The recoil starter spring is the same on all of the large frame saw whether right or left hand start. The 1-61 and 1-71 use the same starter pulley but everything else is different.

Mark

 

[lehman live edge slab]

Been looking at recoil repair videos for the 10 series since I have another left hand start 10-10 automatic that will run I’m sure. Had sharp chain and it was the rewind that was locked up not the saw. Turns over nice blue spark, good compression and a clean tank that smells slightly of old gas because saw I don’t think been run for awhile. Probably since rewind broke. So all 11 saws I got on the auction pull over smooth with compression.
Bid on 12 saws and for some reason the mini mac disappeared out of them all. From what I’ve read really no loss . Anybody know if the rewind or parts from a 1-61 gear drive I have that’s locked solid will work on a 1-71. No ideas what’s wrong with 1-71 rewind may be fine just missing rope but wondering in advance in case I need parts

The recoil starter spring is the same on all of the large frame saw whether right or left hand start. The 1-61 and 1-71 use the same starter pulley but everything else is different.

Mark

thank you

 

[edju1958]

I got the chain brake & sawdust screen from Mark yesterday & installed them on the PM700.Thanks Mark! Now the saw looks real sharp.

 

[hacskaroly]

Now the saw looks real sharp

We don't believe you, pictures or it didn't happen

Glad to hear your saw is whole again!!

 

[heimannm]

Large 3 shoe clutches yesterday...I came up with 6 different part numbers, 3 for the SP80 and 3 for the SP125. The differences include the hub of the rotor; the one on the large saws is wider and with a larger tapered bore, and the width of the shoes. There were both small bore (SP80) and large bore (SP125) clutches with rotors that are .525" wide and .655" wide.

SP80 PN's include 85364, 86464, and 88819

SP125 PN's include 86110, 86466, and 88820

Since I had a few of the smaller bore clutches with the wider shoes, I decided to swap the larger hubs in and supplement my supply of the large bore wider shoe clutches. I also changed out the springs on 3 or 4 used clutches to make them serviceable again.

Some of the retainer plates have a small pin (shown below about 2:00) that evidently was intended to help hold the springs down. Some IPL's show one with the pin, some have all three with the pin, and some three plain retainer plates with no pins at all...



Getting them back together was not too bad with the assistance of from "C" clamp type locking pliers. You can see the wider hub on the clutch below, compared to the SP80 type hub shown above.



Since the 3 shoe clutch has a smaller diameter than the two shoe clutches use on the rest of the 10 Series (and 600 Series) saws, there were unique clutch drums that only work on the SP80 saws with the 3 shoe clutch and 1/2" diameter crankshaft.



The 3 shoe drum will actually fit inside the more conventional 10/600 Series clutch drum.



Mark