McCulloch Chain Saws

[8433jeff]

Most likely, I got to do and see things most people couldn't imagine, not just in the woods either. I lived a barbarian's life back then, such behavior has it's risks and rewards. Only recommended for 20 somethings, the wear starts to show in your 30s.:hmm3grin2orange:

I meant drop the tree so close to the living quarters, but I understand your answer quite well, and wish my time as an apprentice to such barbarians wasn't/shouldn't be over.

 

[Duke Thieroff]

Here's a 1-72 I picked up. I always like to post pics for guys to see, especially if they are running a search in the future.


It needs some external parts for sure, and possibly some crank seals and bearings.

It would idle after richening the mixture substantially, but would respond well to throttle. I noticed the flywheel had some play in it when I would try to throttle it up. I pulled the cover off to find that the crankshaft had about 1/4 inch of play in it.

Once I get the 1-76 wrapped up I'll have this one spread all over the bench. I need to stop acquring projects for awhile in order to finish these ones I have up.

Points will probably needs dressed as well as a thorough cleaning of the whole saw. There's some nice cake all over it.

It needs a cylinder shroud, a flywheel guard and an air filter element. Muffler is in really nice shape, 150ish compression. There's one fin chipped off the cylinder head. Drive sprocket is in good shape. Recoil needs a little work.

Chris

 

[leeha]

Nice 1-72 you got, Well worth the effort
to repair. 1/4 is way to much crank play.
I would say you have some crank bearing
issues. The throttle rod looks incorrect as
well. I will see what mine looks like later.



Lee

 

[cpr]

Agree on the nice 1-72. Preserve that T & C muffler, they are rare.

 

[rwoods]

Thanks for the info Mark, 8433jeff and Ron.
I'd love to hear any more info you have about the changes between the saws Ron,Can never learn too much.

I'm liking the pics of all the other Macs you guys are Posting.

I really need to find some wood to burn up with the 850.

Another question?. What would be the best length bar to run on it ,cutting mainly pine(or should that be what size bar is the max it can run?).

Also I'm still waiting for the SP60 to turn up,hopefully today.....

I've been searching the Local Auction site here in NZ trying to find more old Mac's but no luck. I missed out on the Blue painted Mac the listing was withdrawn.

Check the service bulletin posted by Mark. The different flywheel will explain the different in coil mounting height. The other changes are mostly related to the muffler and cowling differences. The newer series moves the rear bumpers back and they contact a lip on a cast cowling. The older series has rear bumpers under the motor and they ride against a stamped cowling. The newer series has a large muffler mounted underneath with a stack spark arrestor on the side. The top of the muffler serves to direct air flow through the lower fins wheareas the older series uses a stamped cowling. The new series has a squarish flywheel cover to get the air over the muffler. The older series uses a flared flywheel cover similar to your PM700. The PM8200 shares most of the newer series features but has a three piece crank. I don't know what crank is in a 850 Super but I would guess a one piece. The Double Eagle 80 shares the new series cylinder, DSP and one piece crank but it has a intake manifold that mounts the carb (also different) to the motor. It has a seal between the manifold and the airbox. To my knowledge all others (old and new) have a boot which connects the air box to the motor as the carb is mounted to the air box.

As to bar length, I suggest you check with locals as trees species vary so much. I dare say your MAC should keep up with any modern 80cc saw so you can just use them as a reference. I run a 28" with full comp round filed chisel chain and have no problem with it completely buried in white oak and maple. I also have one set up with a 33" skip square ground chain and you can bury it in maple as well. Until the tornato work last Friday I had not cut pine in years; I cut some 24" or so and it was just plain fun. But further South where I grew up, we have some pine that is harder to cut than just about any oak or maple I encounter here - so again check with some locals if you don't have access to bars and chains with which to experiment. Ron

 

[Duke Thieroff]

Nice 1-72 you got, Well worth the effort
to repair. 1/4 is way to much crank play.
I would say you have some crank bearing
issues. The throttle rod looks incorrect as
well. I will see what mine looks like later.



Lee

That's what I thought about the crank bearings once I got it running and saw how erratic it was. I then noticed the movement of the flywheel and decided to dig a little deeper. I'm glad I got some experience with the 1-76.

The carb is a HL19E, I believe, the linkage works great with what's in there, but it does appear that there is a spot for a different type of linkage to run thru there.

There was obviously some work done to this saw in the past, there was no gasket in the tank, just a sealant, I made a paper gasket today for it and cleaned the tank. There was light corrosion on the top half, but none in the bottom. Felt filter is in nice shape.

I will report back as progress takes place. This saw and the 1-76 will make a nice pair down the line.

Agree on the nice 1-72. Preserve that T & C muffler, they are rare.

I remember reading your posts about these mufflers and have seen your video a time or two on YouTube. The muffler is in pretty nice shape.


Chris

 

[rwoods]

Keep in mind the chain, it will have to be properly sharp, with a balance between racker height, bit angles and depth of "hook".
To use an 8 pin otherwise would be a wasted effort.

This 850 is spinning an 8 pin with a 36". To get everything I could out of this saw, everything on it was tip top and finely tuned, including the chain. One of the best lessons in sawing is to tailor the chain to the saw and the wood. The standard grind is a general all purpose compromise.

There you go again messing with my (in)sanity. I'm still trying to maintain something close to factory sharpness of a round file chisel, and now I got to trailor the grind to the wood. I guess I need more saws as I don't have time to change chains from tree to tree. I already have a designated square ground saw although no one around here can re-sharpen one. Ron

 

[promac850]

Mark, you were looking for a SE 2.0 right? I found one on my local CL in a package deal with an XL-12 Homelite for 75 bucks. I want to see if I can get them both for a bit less. Cash talks, you know.

The guy said it ran last year, won't start this year. Could be a carb kit or fuel line. Or maybe he didn't pull the cord enough...

 

[Rounder]

There you go again messing with my (in)sanity. I'm still trying to maintain something close to factory sharpness of a round file chisel, and now I got to trailor the grind to the wood. I guess I need more saws as I don't have time to change chains from tree to tree. I already have a designated square ground saw although no one around here can re-sharpen one. Ron

Practice makes it perfect. Buy yourself some depth gauges for your rakers. My 450 likes the rakers at 35 thousandths in soft wood. I'd think 25 thousandths would work nice in hard wood. Play around with it a bit and you'll find what works best in different situations with different saws. Bigger saw or softer wood= lower raker height.

Hope that makes sense or helps a little - Sam

 

[rwoods]

Practice makes it perfect. Buy yourself some depth gauges for your rakers. My 450 likes the rakers at 35 thousandths in soft wood. I'd think 25 thousandths would work nice in hard wood. Play around with it a bit and you'll find what works best in different situations with different saws. Bigger saw or softer wood= lower raker height.

Hope that makes sense or helps a little - Sam

I understand the priniciples. Husky actually has two raker heights on their little guages but now I have to determine the best hook and angles. Really I was just razzing Randy for knowing so much more than me. Ron

 

[RandyMac]

I understand the priniciples. Husky actually has two raker heights on their little guages but now I have to determine the best hook and angles. Really I was just razzing Randy for knowing so much more than me. Ron

It wasn't learned overnight, many files were made shiny before there were consistant results.
There are all kinds of things I don't know, but I have an idea of what I don't know.

 

[nallac]

Hey guys what do you think of this lot?.
Vintage McCulloch collection (new/used spares) | Trade Me
Is the Kart conversion anything special?....sorry if thats a dumb question but i know nothing about the MC-49.

What would you pay for similar in the States?....it would convert out to be about $300US.

Then there is this one aswell....
chain saw | Trade Me

H'mm i need more money..................

 

[heimannm]

PM610 - Thanks for the lead, but I am looking for the Silver Eagle 3.7, the 600 Series saw. The 2.0 is one of the smaller ones.

If we can find the Silver Eagle and the very rare 640 we will have the whole 600 Series line up, I think.

Mark

 

[Brian13]

Hey guys what do you think of this lot?.
Vintage McCulloch collection (new/used spares) | Trade Me
Is the Kart conversion anything special?....sorry if thats a dumb question but i know nothing about the MC-49.

What would you pay for similar in the States?....it would convert out to be about $300US.

Then there is this one aswell....
chain saw | Trade Me

H'mm i need more money..................

The 7-10, is more or less an older version of the PM700 with stronger porting. Supposed to be a good cutting saw. Not real sure on the kart conversion, its not a kart block, but a Super 250 block, which is worth having. All together I think the lot is worth having, and not over priced for what in it.

 

[Ambull]

7-10's are usually left hand start..... Kart conversion looks like something fun to tinker with. Looks like is has a big BDC carb on it. Might be tricky fitting the tank on.

 

[HeRoze]

===
If we can find the Silver Eagle and the very rare 640 ===

very rare 640?

 

[stinkbait]

I say that we should have a "port your mini mac" competition. What do you guys think?

 

[Ambull]

I say that we should have a "port your mini mac" competition. What do you guys think?

I will use my 30-06 to add a couple of transfer holes.... lol.

 

[briantutt]

I say that we should have a "port your mini mac" competition. What do you guys think?

Will there be a "must retain inability to work on carb without removing from case" clause?

 

[stinkbait]

Will there be a "must retain inability to work on carb without removing from case" clause?

Rule 1 - There are no rules

You can go crazy on the ports, switch carbs, even make a removable head if you want. It all depends on how far you want to go.