McCulloch Chain Saws

[Syncop8r]

I'm looking for some parts, and it might be easier and maybe even cheaper to get them from the US (to join a shipment I'm already getting) than trying to find them here.
Can anyone help me out?

I need a PM700 ("The Professional") clutch cover- I believe it should be black and covering the muffler, with a chainbrake.
I'm also thinking about replacing one or both of the clutch covers of my PM60 and 10-10, depending on what's out there.
Also a couple of oil caps and two sets of bar plates for my PM700 and PM60 (are they all the same across the 10 series?).

 

[vinnywv]

So as many of you know I have learned a great portion of what I now know about these old Macs from my Uncle. I have told a few of the cool stories of events and saws that relate to him, and the history I have growing up around him and them. He is a remarkable man. A tool and die man. A fixer, creator, tool maker, problem solver. Chainsaw and otherwise he has fixed many a thing for many folks. Not because it was his job, or he got paid but because he cares for others and loves to troubleshoot and solve problems. Now as many of you know his health has declined to the point that each day I can hear is voice is a prayer answered. We though we had lost him two weeks ago, and yet again he made it back home. He can no longer get to his basement workshop but he is home and feels like talking about saws and such. He has several DE80s. He is not a fan. Honestly they aren’t my favorite 82cc ten series either. But one in particular has always caused him to scratch his head. Months ago he had decided to convert it to a PM805. I talked him out of it because, well DE80s are in demand. I didn’t want to see one wasted. Earlier this week he asked me to take it home and see if I could get it to run right. He had been having issues with it for years. It never would run right. In his words “it was a dog”. I brought it to the house. Pulled carb (SDC 85) cleaned it rebuilt it, slapped it on the saw still a dog, plus it was pooling gas on the throttle butterfly. The carb was tested before I put it on. I leak tested the saw. It was good. I had to surmise that the carb body had some sort of hair line crank in it. After a few calls looking for the somewhat elusive SDC 85 the DE80s have. I decided to see if I could modify a 65 to it… Well long story short, I got it to work and the saw finally runs like it should. I made some test cuts. It cut really really well I called Uncle to let him hear it over the phone, He said “wow that saw never revved up like that before. He thanked me. I told him, all I did was what you taught me. He was surprised I figure out how to modify the idle adjustment to make the new carb function. All those years of him helping me solve issues with saws, I was honored to solve one for him. Truth is I was determined to get this one right for him. I will test fire the DE80 tomorrow, then drain the tank, run her dry and take her home to sit on a shelf beside the others he has. Life has a way of coming full circle. All I can add is I am a blessed man!


Max

Great story and well done. One thing about these saws so many parts are interchangeable. That saw is dusty and would likely clesn up like a shiny new penny! Im nearly done with this one i got. Been working nearly everyday. Girls softball on days i dont work. Anyhow, good story.

 

[super44]

A couple weeks back we stopped by an antique/junk store and out on the pile out back was a Pro Mac 555 missing a bar and chain brake. Other than that I saw some useful parts. $20.00 later it got a ride to my place. The manual oiler is stuck and the throttle grip has been welded but compression is very good. I put some gas and oil in it today and it started, sounded good and is oiling like it should. I think it is a low hour saw. How common is it for a saw to sill have the inspector stamp on the bottom?? I "think" this is the first one I have with the stamp still on it.

 

[vinnywv]

Wow 20 bucks! Very good. Ive seen those stam0s here and there. Not always, usually they are worn off

 

[Maintenance supervisor]

A couple weeks back we stopped by an antique/junk store and out on the pile out back was a Pro Mac 555 missing a bar and chain brake. Other than that I saw some useful parts. $20.00 later it got a ride to my place. The manual oiler is stuck and the throttle grip has been welded but compression is very good. I put some gas and oil in it today and it started, sounded good and is oiling like it should. I think it is a low hour saw. How common is it for a saw to sill have the inspector stamp on the bottom?? I "think" this is the first one I have with the stamp still on it.

Sdc 44a is my favorite

 

[heimannm]

I put some photos in the 10 Series thread as well, but I wanted to report here that our work on the 10 Series sawdust guards (starter screens) with the square grid seems to have come out just fine.

That is a older flywheel cover in the foreground with the 3D printed version, and a PM800 type cover in the background with and OEM screen.





The way my 3D printer works is extruding thin "threads" of filament that stick as they cool and build up the part. In order to make the grid pattern without printing supports in every opening we had to make the grid a bit smaller so the "threads" can span the opening. The first couple of horizontal layers on each level are a little droopy, but nothing you will ever notice with the saw at arms length and the engine running...

I did notice that the PM800 flywheel covers do not have the groove all the way around the base so I had to trim off the rib on the bottom of the screen to improve the fit.

Older 10's & SP models, groove at the base of the starter is complete.



On the 800 Series covers the groove is only present between the legs of the starter base.



On the OEM screens the rib is missing in those areas, the 3D printed ones have a continuous rib.



Even without the rib the OEM screens are somewhat distorted when installed on the flywheel housing.



When I trim the rib off the 3D printed screens at the appropriate spots, they fit very nicely on the 800 Series covers.



Mark

P.S. I guess I will have to discount my original design parts now to clear them all out and make room for the new square grid version. We went from the round openings in the first version to the triangles to try and deal with the droopy edges. It was flattering to see several folks copy the triangle patterns when they went out and started making replacement parts.

 

[knightmax]

Great story and well done. One thing about these saws so many parts are interchangeable. That saw is dusty and would likely clesn up like a shiny new penny! Im nearly done with this one i got. Been working nearly everyday. Girls softball on days i dont work. Anyhow, good story.

She did clean up nice.

 

[knightmax]

The SP 80 I picked up a few weeks back turned out to be a diamond in the rough. I think she might be completely original, and a early model. A carb kit and new fuel line a filter and she is solid. Gonna keep this one. She will go into the harem lol.
View attachment Sp 80 run vid.MOV

 

[vinnywv]

Boy it certainly did clean up nice!!!

Great sp80 also. I dont have one of those.....yet

 

[heimannm]

With a 3 shoe clutch to boot. If you need to replace the drum as some point, I have a supply.

Mark

 

[knightmax]

I put some photos in the 10 Series thread as well, but I wanted to report here that our work on the 10 Series sawdust guards (starter screens) with the square grid seems to have come out just fine.

That is a older flywheel cover in the foreground with the 3D printed version, and a PM800 type cover in the background with and OEM screen.

View attachment 995195

View attachment 995196

The way my 3D printer works is extruding thin "threads" of filament that stick as they cool and build up the part. In order to make the grid pattern without printing supports in every opening we had to make the grid a bit smaller so the "threads" can span the opening. The first couple of horizontal layers on each level are a little droopy, but nothing you will ever notice with the saw at arms length and the engine running...

I did notice that the PM800 flywheel covers do not have the groove all the way around the base so I had to trim off the rib on the bottom of the screen to improve the fit.

Older 10's & SP models, groove at the base of the starter is complete.

View attachment 995198

On the 800 Series covers the groove is only present between the legs of the starter base.

View attachment 995199

On the OEM screens the rib is missing in those areas, the 3D printed ones have a continuous rib.

View attachment 995200

Even without the rib the OEM screens are somewhat distorted when installed on the flywheel housing.

View attachment 995201

When I trim the rib off the 3D printed screens at the appropriate spots, they fit very nicely on the 800 Series covers.

View attachment 995202

Mark

P.S. I guess I will have to discount my original design parts now to clear them all out and make room for the new square grid version. We went from the round openings in the first version to the triangles to try and deal with the droopy edges. It was flattering to see several folks copy the triangle patterns when they went out and started making replacement parts.

View attachment 995203

With a 3 shoe clutch to boot. If you need to replace the drum as some point, I have a supply.

Mark

Good to know! Thank you!

 

[knightmax]

I'm looking for some parts, and it might be easier and maybe even cheaper to get them from the US (to join a shipment I'm already getting) than trying to find them here.
Can anyone help me out?

I need a PM700 ("The Professional") clutch cover- I believe it should be black and covering the muffler, with a chainbrake.
I'm also thinking about replacing one or both of the clutch covers of my PM60 and 10-10, depending on what's out there.
Also a couple of oil caps and two sets of bar plates for my PM700 and PM60 (are they all the same across the 10 series?).

To my knowledge the bar plates are all the same across the 10 series, except the 82cc saws which have a full backing unit that requires clutch removal to replace. It functions as a full cover behind the clutch, and a bar plate. On the parts...I would Reach out the Mark H. on here. He may be able to help.

 

[Maintenance supervisor]

I bought some stock sheet steel to make my own bar plates, .018-.024 . I had so many Mccullochs show up without them.

 

[heimannm]

The bar protector plates are the same on all of the 10 Series and the outside plate on the 600 Series.

Mark

 

[bob kern]

Sounds like crush damage, I've had a McCulloch grabbed by a storm damaged tree from me more than once and flung anywhere from 10' to 40' feet ,it will just land and idle waiting to be picked up.

They are tough for sure. I know one chuckle head ( name starts with a B and ends with a B)
who ran over one with a truck loaded with firewood. The big goof put a new handle on it and a gas tank top and put it right back to work on the next trip to the woods. Some guys , I tell ya!!!!

 

[Maintenance supervisor]

They are tough for sure. I know one chuckle head ( name starts with a B and ends with a B)
who ran over one with a truck loaded with firewood. The big goof put a new handle on it and a gas tank top and put it right back to work on the next trip to the woods. Some guys , I tell ya!!!!

Yeh I know some fool who was trying to cut popular trees in the wind and smashed a prefectly good 10-10 , new tank and clutch cover and off to the races again.

 

[knightmax]

So, you all have heard me talk about Dad’s SP81, the one that was bought new by Uncles father, which Dad bought used, then it got straight gassed and had an 850 block rebuilt into it. To this day its my best running 82cc Mac. But like all things there are things that I didn’t know about the saw, that I have learned from Uncle over the past years. Things like it came new with a single adjustment SDC (fixed high) carburetor. That it never ran great. That it was taken back to the dealer three times and had two new single adjustment SDCs put on it. That Uncles father refused to run it anymore and made him drill a hole in the breather compartment and install a more standard fully adjustable SDC because the saw never ran really super. I say all that to say this. An SP81 I picked up a few weeks ago has the same carburetor setup on it (single adjustment) I told Uncle about it when I was driving back home with it. He stated “Good luck with that, they seldom run right”. Well I got to fooling with it a few days ago, determined it needed rebuilt. So I pulled the carburetor dropped it in the ultrasonic cleaner, rebuilt it and returned it to the place it has sat for 45 years. I fired the ole girl, tuned her and was pleasantly surprised. The high side is fixed and the low side tuned out well. I am surprised how well the saw runs. How well she opens up. How well she runs in the cut. I was expecting trouble, either I got lucky, or the old days of trying to clean a carburetor with carb cleaner just wasn’t cutting it (no pun intended lol). Anyway, I stopped in to see Uncle for a bit this evening and showed him this
View attachment Mac SP 81 Run Vid.mp4
video of the saw running after I tuned her. He smiled and said, you sure that’s a fixed high SDC? I said yeah, He patted me on the shoulder. I will take that as a well done.

Max

 

[vinnywv]

Good deal. That would be the sdc51 carb. They do make the saw run great. Yes you can chamge it out and tune it a bit faster but that carb does very well. Pat on the back for the story.

 

[heimannm]

I have several saws with the fixed H jets and while all seem pretty fat out of the cut, they all clean up nicely under load and I have a high level of confidence they won't have any problems of running too lean no matter what I do with them.

Among the saws are a PM55, SP80, SP125 (very rich), and CP125. In my limited experience I'd say McCulloch did a good job of matching the carburetion to the saws.

I have been messing with a few Homelite XL and Super 2's lately and will say that one of those little piggies is so fat it hurts. I recommended to the owner that we disassemble the saw again and lower the metering needle to try and reduce the fuel flow a bit but for now he's running it that way.

Mark

 

[knightmax]

Good deal. That would be the sdc51 carb. They do make the saw run great. Yes you can chamge it out and tune it a bit faster but that carb does very well. Pat on the back for the story.

Yeap it was a 51. I didn't know if there were other model SDCs with the fixed high jet. I was really expecting trouble with it. Uncle is very biased against them. Likely from the long ago issues with SP 81 I now have that was Dad's and before that his Dad's. This just proves my favorite saying. "Ya don't know what ya don't know". Honesty I run my High sides a little fatter that the fixed setting on the 51. But I always error on the side of caution with 40 year old hard to find parts for saws lol.