McCulloch Chain Saws

[Eccentric]

I know... But you still gotta teach me more stuff!!! Don't dry out too much on me!!

I learned a lot from your recent post on the fancy 77 type Macs... I found it very fascinating, and your experience in that field is remarkable.

Thanks SM. No danger of my brain drying out too much this weekend. Wait 'til you see what Mark does with that 77. My experience with that saw just comes from pulling it apart and trying to make a 53 year old metering diaphragm work. I should have taken pics of that beast when it was apart, but I was always in too much of a hurry. Now that Mark has a new metering diaphragm (and has the shop space, tools, and patience)..........I wager we're all in for a treat.

Off to go pick up a fuel filter for the SP-81 and a few other things. Brain's dry enough for that....

 

[cbfarmall]

Picked up this big son-of-a-gun the other day off Ebay. All things considered, a pretty fair price. I added the helper handle but the rest was part of the deal. All the badging on the tank is gone. Supposed to run but needs tuning--the last picture will make clear why.

By the way, how in the world is the carb on this thing supposed to be adjusted and preset? Quite a departure from what I'm used to.

Chris B.

Believe it or not, but I got this thing running, idling, and revving up today. Had to replace the high tension lead, boot, clip, and clean/adjust the points. Got to taking apart the fuel system--I was just going to look at the metering diaphragm, but once I started I just had to finish. With the exception of the main diaphragm, everything was in good shape. The main diaphragm had some holes in it, so for a short-term fix, I patched it with Moto-seal. I will need to find a good replacement or cut one in the near future. My patch on the crankcase--JBweld and a small piece of stainless screen for strength--set up real well overnight. A few shots of fuel thru the air cleaner housing and she was off and running. The carby thumb adjustment even responded very well. I shut the saw down by closing the fuel shut-off and letting the carb run dry. I'll let her set overnight again and see how it does tomorrow. One thing for certain, I am not carrying this saw anywhere.

As an added bonus the compression was pretty good when I started, but after running for 30 seconds, the compression is now dynamite.

Chris B.

 

[rwoods]

NOS 797 mufflers complete, NOS 105/125 mufller bodies.

Just listed today; same guy has 105/125 muffler bodies, too. MCCULLOCH CHAINSAW 795 MUFFLER KIT STBX633 | eBay Ron

 

[HeRoze]

====

It's all in a pile waiting to be split...

Nice tree and saw, btw. That just looks like fun!

 

[rwoods]

Nice job, Kyle. That the right size hardwood for your saw - and for the splitter. Ron

 

[Duke Thieroff]

Keep 'em above dog level and you'll be fine there. A good friend and member here (though of questionable character) has named that poor saw of mine the PissXL12. :msp_tongue:

Ahh, the PisSXL. I doubt you'll be getting any tears over here in this thread. Going to pick up an XL925 tomorrow, hopefully. Spent the day yard-saling in prime logging/firewood territory, I would say 6 out of 10 homes have a triaxle load of logs in their yard, must've hit 40+ sales 60+miles and not a chainsaw in sight, well, one electric and a little 35cc Taiwanese Homelite.

I guess you win some and you lose some.


Glad to be back, my friend.



Chris

 

[leeha]

Just listed today; same guy has 105/125 muffler bodies, too. MCCULLOCH CHAINSAW 795 MUFFLER KIT STBX633 | eBay Ron

Thats a great deal on them mufflers.
The 795, 895 muffler is a hard one to find.



Lee

 

[promac850]

Nice tree and saw, btw. That just looks like fun!

Thanks!! It was a bunch of fun. Those big piles of chips just tickled me... and still do!! Man, does that saw cut fast...

It's incredible how far logging and its tools have come. I've looked at some of the history and links to history posted by members here and it never ceases to amaze me. It's simply incredible that they used to cut trees that dwarf this one with misery whips!! We all really are sissies compared to the men back in the 1800's cutting old growth timber with hand saws and axes. Calling them men seems to sound a bit like an understatement to me... I guess we can call them real men.

If I've already stated this before, smack me. I don't remember if I ever mentioned this.

Nice job, Kyle. That the right size hardwood for your saw - and for the splitter. Ron

Thanks! It was just perfect... just meant to be. That Mac 850 was supposed to meet that maple... and that bar and the saw definitely made short work of it all.

The splitter, we (more of I, I'm basically the only one capable of doing fabrication in this family of four...) might end up building one. I was thinking a left over 18 hp Briggs Vanguard vertical twin hooked up to a 30 or so GPM hydraulic pump pushing 3000 psi down hoses to an 6, 7, or 8" cylinder, depending on what I calculate for cycling speed. A lift or pivot set up still has to be decided... oh boy. Heck, we could probably build this splitter for around a grand or less, and beat the heck out of the run of the mill store types.

Hmm... tomorrow, I might just start sketching out a splitter design... after I mow the lawn which is now borderline overgrown. Leaving it long in this heat really keeps it green. The 317 shouldn't mind the 4" of grass needing to be clipped off...

 

[8433jeff]

Somebody show the shop monkey how to buck in the bind, so he doesn't embarrass us.

If that was the only reason he'd embarrass us we could rest on our laurels.

Definitely rich. Shouldn't lean out that much. Now that its broken in some, lean her out some. Carbon is an enemy to fear as well.

 

[brianmms22]

mac 10-10

anybody have any parts for these or know anybody that does?

 

[heimannm]

The 77 Lives!

I was able to get the 77 back together today. I will try to put together another thread showing as much detail as I can about the carburetor, throttle, and the intake (rotary valves) but it will have to wait until later in the week. Next up on the 77 will be to figure out why the oiler doesn't work. I will need to learn the secrets of starting this one, but once you get it going it idles nicely and revs up pretty well. Certainly the H adjust works as it should, I will tell more of the story on that in the 77 thread when I get it going.

I will point out that I had to change the muffler, I have not seen one rusted out on these big, old saws before but the original was shot. This one came off a 47 I had in the attic (from Grizzly Adams so don't get nervous Jerry) and took a lot of cleaning, I think the 47 must have been running 16:1 using 90W gear oil for a few years and was really loaded with baked on carbon. Looks O.K. now.

Tomorrow after church & lunch I have to drive to Kansas City, should be there 3 days then a stop in St. Joe and hopefully home by Friday. Ideally there will be some time in the evenings during the week to do a little catching up here on AS.

Thanks Ron for the heads up on those mufflers, looks like Bryce has quite a lot of NOS McCulloch parts he has not had posted before.

ChainsawmanXX - I found all the parts you need but the AF cover it pretty rough. I will try to post some photo's later on or PM me with an e-mail address and I can send them directly that way.

Mark

 

[8433jeff]

anybody have any parts for these or know anybody that does?

Narrow it down for us. Are you looking for specific parts, or a compete parts saw?

 

[Eccentric]

Believe it or not, but I got this thing running, idling, and revving up today. Had to replace the high tension lead, boot, clip, and clean/adjust the points. Got to taking apart the fuel system--I was just going to look at the metering diaphragm, but once I started I just had to finish. With the exception of the main diaphragm, everything was in good shape. The main diaphragm had some holes in it, so for a short-term fix, I patched it with Moto-seal. I will need to find a good replacement or cut one in the near future. My patch on the crankcase--JBweld and a small piece of stainless screen for strength--set up real well overnight. A few shots of fuel thru the air cleaner housing and she was off and running. The carby thumb adjustment even responded very well. I shut the saw down by closing the fuel shut-off and letting the carb run dry. I'll let her set overnight again and see how it does tomorrow. One thing for certain, I am not carrying this saw anywhere.

As an added bonus the compression was pretty good when I started, but after running for 30 seconds, the compression is now dynamite.

Chris B.

Fantastic news Chris. Good job! I don't have a 73 IPL, so I don't know if the 73 uses the same diaphragm as the 77. The 77 uses part # 28696A. Last I checked, there was still an NOS diaphragm on ebay. Listed as 28696. There was also an NOS crankshaft, rod, piston, and rings listed a while ago too. I believe those are shared between the 73 and 77. I love the sound of those saws. BIG bore, short stroke. BIG can muffler. Oughta be a strong runner with the right chain.

Ahh, the PisSXL. I doubt you'll be getting any tears over here in this thread. Going to pick up an XL925 tomorrow, hopefully. Spent the day yard-saling in prime logging/firewood territory, I would say 6 out of 10 homes have a triaxle load of logs in their yard, must've hit 40+ sales 60+miles and not a chainsaw in sight, well, one electric and a little 35cc Taiwanese Homelite.

I guess you win some and you lose some.


Glad to be back, my friend.

Chris

Many guys here are almost as big into Homelites as McCullochs...........or are at least 'sympathetic' to Old Magnesium of all colors. The fate of the PissXL12 is tragic. It is donating a good P/C, as well as many other good parts to the fleet at least...

I scored a really nice later Homelite Super E-Z Automatic from an unexpected source this afternoon. Got it for a great deal. It's a "PNW" version, with a full-wrap handlebar! P/C look great. Just needs a good cleaning, a carb kit, and a flushing out of the 20 year old mix in the tank. Somebody put it up with a tank full of mix and a full oil tank. Looks like it was well taken care of.

The guy actually made me SWEAR to not send anyone else to him, or tell anyone where I got the saw. His old saws "aren't for sale", and he was just doing me a favor. I may get a nice McCulloch Super44 from him sometime down the road. He quoted me a fair price, but I was already tapped out. Next visit...

 

[promac850]

Fantastic news Chris. Good job! I don't have a 73 IPL, so I don't know if the 73 uses the same diaphragm as the 77. The 77 uses part # 28696A. Last I checked, there was still an NOS diaphragm on ebay. Listed as 28696. There was also an NOS crankshaft, rod, piston, and rings listed a while ago too. I believe those are shared between the 73 and 77. I love the sound of those saws. BIG bore, short stroke. BIG can muffler. Oughta be a strong runner with the right chain.



Many guys here are almost as big into Homelites as McCullochs...........or are at least 'sympathetic' to Old Magnesium of all colors. The fate of the PissXL12 is tragic. It is donating a good P/C, as well as many other good parts to the fleet at least...

I scored a really nice later Homelite Super E-Z Automatic from an unexpected source this afternoon. Got it for a great deal. It's a "PNW" version, with a full-wrap handlebar! P/C look great. Just needs a good cleaning, a carb kit, and a flushing out of the 20 year old mix in the tank. Somebody put it up with a tank full of mix and a full oil tank. Looks like it was well taken care of.

The guy actually made me SWEAR to not send anyone else to him, or tell anyone where I got the saw. His old saws "aren't for sale", and he was just doing me a favor. I may get a nice McCulloch Super44 from him sometime down the road. He quoted me a fair price, but I was already tapped out. Next visit...

Well... since we can't go visit him... you gonna go get saws for us, eh?

 

[Eccentric]

Well... since we can't go visit him... you gonna go get saws for us, eh?

I have to be extremely careful with this fellow. He's somewhat of a collector himself, and seems the type to be easily 'put off'. Don't want to burn this bridge. I seem to have gotten MUCH farther than many others before me (regarding old saws).

The only Macs I saw there were a clean looking EARLY mini-mac (not for me thanks), a nice 33 or Super 33, the Super 44 that I kinda want for myself (but may pass on to someone esle if that if somebody really wants it), and a stripped, not yet identified front-tank carcass I'll try to get for parts (probably a 250). He has "the shelf" high up on the wall where the old saws rest. The modern, 'working' saws are on shelves below. Hard to see what's up there in 'the museum' (his words). Many old Homelites (including some that I'm eying), plus some oddball stuff and models I care not for.

There's a Mono/Wards 35 that looks like it may be NOS. No box though. Some other odd 'uns. He said he had a Wasp of some sort that's a strong runner. I didn't even see it due to all the clutter on the shelf. Both of us were in a hurry, and the whole 'selling saws thing' was a surprise for both of us. Dunno when I'll be allowed into the 'inner sanctum' again. Gonna keep this one in me pocket and hope more comes of it down the road. I have another lead that may be even better.......................or may be a dead end. That one will be ALL Old McCulloch from what I gather. I'll update you guys when I find out more...

 

[rwoods]

125c FOR SALE

bplust posted this in another thread on his 125C project:

Well, it's been a few weeks since I've had time to work on the saw, but I just cleaned and re-gapped the points today (to .019", the low end of factory specs), and it starts great. A big "thank you" to anyone who had input. Unfortunately, now I have to sell it, so if anyone's interested, let me know.

Thanks again,

Bryan Share

Ron

 

[Brian13]

Learned a couple of lessons today!! One.......if you heat up a piece of metal to bend it, in a couple of minutes, it will probably still be hot! Two.....no matter how your carb is sett up and no matter how many times you pull on the starter rope, if the switch is on off, it wont start.

Did some more work on the throttle rod today. Made it to the last bend and broke it, had to start over. Got the basic shape and put it in and fine tuned it. Looks a whole lot better than what was in there to start with.

Original

The one I just made. I think it looks a little more original.

Have not been able to get the Tilly to stop leaking at the bottom, so I tried the Mac carb again. Put new O-rings at the primer, and got it to prime again. After I switched it to on I got it to fire up. Think I have the metering level set to high. Its not leaking fuel out the throat, but I can screw in the L mix needle all the way in and it will still idle. Actually seems that is where it runs best LOL. Making progress and getting closer, just need a whole day and temps below 90* and maybe I can get it right.

 

[Dennis Gauge]

anybody have any parts for these or know anybody that does?

That's about the easiest saw to find parts for. Just about everything you need can be found on that popular auction website, or on site sponsor chainsawr.com, or by trading with guys here.

 

[djones]

anybody have any parts for these or know anybody that does?

What parts are you looking for. I have a couple of parts saws to dole out.

 

[paccity]

will be unloading alittle later this evening. with more pic's.View attachment 192589