McCulloch Chain Saws

[Doug]

So... how can we contact her?

Perhaps I was not really honest with myself. Actually I would let it go, but ONLY to trade for a 797. The 797 is what I had in my hand in '68 in what was the most memorable summer of my teen-age years. I got the 795 because it became available here in Alaska, and it kinda-sorta looks the same, almost the same saw, but it's just NOT a 797. I've thought about changing the decal on the top cover. No one would no the difference. But I would, and that would kill it for me. Odds of finding a 797 here in Alaska slim to none.

 

[heimannm]

Lear Aviation provided those chargers for smaller airports that did not have another 24V source for charging/recharging their planes.





In the original configuration they have a special plug to connect to the plane.



It is a 10-10 engine.

Mark

 

[flatsfisher]

Those I've seen before. I believe the charger is an attachment you install like you do with the bar and chain. The one I saw was also on a 10-10 and if I remember right I don't think it was a McCulloch accessory? Don't know if they were made for other models or brands?

I think you're right. I looked at it again and it says Lear battery charger, MAC 10-10.

 

[MacAttack]

Hey guys,

Can anyone tell me if I'll need an arbor press to put my Mac 450 back together? According to the service manual for the 1960's era 80-87cc saws, I may need to press the crankshaft and ball bearing into the magneto side case cover prior to assembling the powerhead??

I had to use a puller to remove the side cover so any input on reassembly is much appreciated!

 

[bob kern]

Decided to move that super clean 610 if there's any interest. Funding for another saw of course!

 

[Woodslasher]

Hey guys,

Can anyone tell me if I'll need an arbor press to put my Mac 450 back together? According to the service manual for the 1960's era 80-87cc saws, I may need to press the crankshaft and ball bearing into the magneto side case cover prior to assembling the powerhead??

I had to use a puller to remove the side cover so any input on reassembly is much appreciated!

Negative. I use a dead blow hammer to start pressing the side case on, then when it's close enough I use the screws to pull it together.

 

[MacAttack]

Negative. I use a dead blow hammer to start pressing the side case on, then when it's close enough I use the screws to pull it together.

Roger that, thank you!

 

[cbfarmall]

Roger that, thank you!

After you do that, if it binds while turning, tap both ends of the crank to help center the bearings, relieve tension. Always check crank rotation at every stage of assembly.

Chris B.

 

[MacAttack]

After you do that, if it binds while turning, tap both ends of the crank to help center the bearings, relieve tension. Always check crank rotation at every stage of assembly.

Chris B.

Gotcha, thank you!

It does seem like there is a need to "center" the crank on the connecting rod, as it is able to move laterally somewhat in the bearing bosses.

 

[heimannm]

Center the crankshaft in the crankcase after you get it pushed/pressed back together...there is a chance in the process that you will put some thrust load on the bearing during assembly.

Mark

 

[MacAttack]

Noted Mark, thank you!

this is the kind of invaluable input that you just don't see in the service manual.

 

[flatsfisher]

sealed the 100CC powerhead, put it in the parts washer, then the shop sink with degreaser. dried it with compressed air. I had cleaned it previously, enough to work on it and get it running well, but this got all the old crud out of the fins and small holes and crevasses.

before

 

[vinnywv]

That really cleaned up well.

 

[MacAttack]

Vertical cylinder, I didn't realize there were some larger Macs made like that.

 

[heimannm]

That is actually a Partner P100 dressed up as a Pro Mac 1000...





Mark

 

[Jethro 2t sniffer]

It's a partner saw

Whoops lol. Slow interwebs here

 

[MacAttack]

Very neat....I had no idea McCulloch had those rebranded saws. It's very curious they'd choose to go that route.

 

[Jethro 2t sniffer]

I wish they just made a 100cc sp81

 

[heimannm]

I suspect it was Partner interested in taking advantage of McCulloch's popularity here in the USA.

Sachs Dolmar tried it in Australia...

"McCulloch" SP85



"McCulloch" SP118



Mark

 

[sean donato]

Well, the flat back is coming off the 1-76. Just cant seem to figure out what's wrong with it. Did some digging around in my logging buddies shed and found a box with "Mac carbs" written on it. Dug out an hl19. Looks like it should bolt right up, will have to make some new linkage for the choke/ throttle. But at this point I'm ok with it. I'd just like to enjoy this saw and stop having to tinker with it all the time.