McCulloch Chain Saws

[watsonr]

Will the muffler from a 1-70 or the 450 fit the CP125?

they look the same in a picture,

Thanks

 

[heimannm]

Either muffler will fit, but I don't think either one came with the third mounting screw like the CP125 would use. The gaskets would be different as well, the older saws saws have the more "oval" shaped gasket with 2 holes, the CP and other late model saws use a more squarish gasket with no holes similar to the 10 Series saws.

There are NOS mufflers on e-bay (last time I looked anyway). The same muffler works on the 700/800 saws, the big 1-7X and 1-8X saws, and the 550; all use the third mounting screw.

Bob Johnson also had some NOS units for $60, but you still need to get the gasket (should be 83379) for an extra $1.

I know a guy that has the complete NOS CP125 muffler kits with muffler, gaskets, even the cast guard that is so often missing or broken. These are not the original round mufflers (like Bob has) but a rectangular muffler. I can point you in the right direction if you're interested.

Mark

 

[watsonr]

I just hate paying for something I already have or I thing I have. This saw is just setting for now and I don't have time to get to it any time soon. From the picture you can see that it does have the same shape and looks like it has the third bolt in the back....however the saw is not in my possession currently. It is mine just not at my house yet. This is the 450 muffler in question.

 

[rwoods]

Mark, I'm glad to hear that you got your 81 sorted out. I'm also pleased to hear you enjoyed running it as I know your experience is much more varied than mine. Maybe one day I'll get to run a modern day equivalent and maybe I'll think differently but for now I'll continue to sing the praises of the 82cc MACs. Ron

 

[heimannm]

Randy - That muffler will work, but you will need the other squarish gasket

Ron - I also have the SP85/SD133 and I will say that the SP81 really puts that one to shame. I found this saw in a heap of saws that were headed to the bone yard, compression is very strong but it had a few broken or missing parts here and there. Thanks to MO Jim and Stude54 I happened to have everything on hand that I needed to make it a goer. I even had a 32" McCulloch bar & chain, black bar with the yellow McCulloch painted on the side that I picked up some where along the way that I'd been saving for one of these saws. I need to get a different wrap handle though, as the one on the saw was not made to clear the clutch cover with chain brake so it takes about 30 minutes to change a chain.

Can you pick it out in the trailer? These were the saws I took to the GTG at Mweba's a couple of weeks ago.

Mark

 

[rwoods]

It's the third saw over - between the 79? and the SP 105/125. Ron Actually the fourth saw over. I missed the one against the trailer side.

 

[Nardoo]

Well then that would confirm it's an 895.
I'm sure if it could talk there would be some
stories to tell. Strange how there's no auto
oiler. Some parts were obviously swapped at
some point in it's life.

Lee

Lee,
I think you were right about the swapped out short blocks. Going through some IPL's that Mark sent me, the saw has the big carb with the manual primer of the 1-86 (flatback?). I reckon it is a 1-86 like you originally predicted, but with a 895 top end.
When I get to it I will post up some more pics.

Al.

 

[leeha]

Nardoo,
Some of the early 895's also had the flatback
carbs as well. The later had the tilly HL's which
is a much better set up. IMHO. But in anycase
i still believe your block was replaced.




Lee

 

[cpr]

Nardoo,
Some of the early 895's also had the flatback
carbs as well. The later had the tilly HL's which
is a much better set up. IMHO. But in anycase
i still believe your block was replaced.




Lee

FWIW, my 795 came with a flatback that I swapped to an HL. 63629 is the same block p/n as my 795.
Good score!

 

[Eccentric]

Randy - That muffler will work, but you will need the other squarish gasket

Ron - I also have the SP85/SD133 and I will say that the SP81 really puts that one to shame. I found this saw in a heap of saws that were headed to the bone yard, compression is very strong but it had a few broken or missing parts here and there. Thanks to MO Jim and Stude54 I happened to have everything on hand that I needed to make it a goer. I even had a 32" McCulloch bar & chain, black bar with the yellow McCulloch painted on the side that I picked up some where along the way that I'd been saving for one of these saws. I need to get a different wrap handle though, as the one on the saw was not made to clear the clutch cover with chain brake so it takes about 30 minutes to change a chain.

Can you pick it out in the trailer? These were the saws I took to the GTG at Mweba's a couple of weeks ago.

Mark

I agree. It's to the right of the S-797, with the BRIGHT yellow CB handle. Is that an SP105 or SP125 to the right of it? My guess is that it's one of your SP105's. I also spy a familiar saw in the extreme far right of the pic. Do you have any more video of the 77 in action? Something from Mitch's GTG perchance?

 

[Snyper438]

Box store McCulloch....worth messing with for learning?

Found this in a dumpster, needed fuel lines so the guy tossed it. Couldn't find box other pieces were supposed to be in. Trying to decide if i get it going again or see if anyone can use what's left. He wasn't sure which model it is either. Know it's not worth much as far as value for sale, but firgured if i could find parts cheap it may be worth learning on and be a decent little backup saw when done.

View attachment 204256
View attachment 204257

 

[Tambia]

Pro Mac 700 manual

i have ipls for almost all the mac models if any of you ever need any i have them dated from 1950 on some even dated back to the 40s
calvin

also have mac parts on hand if anyone ever needs any

I am desperate for a manual for a Mac Pro 700, can you help me? My e-mail is [email protected]
Thanks Tambia

 

[homelitejim]

I been out of touch for a few days, took some vacation time last week and went fishing among other things.

In my spare moments I have been working on the carburetor issues on one of the SP81's I tried to get ready for the GTG earlier in the month. This one in particular has the fixed high jet and at first was rather rich unloaded, then when we started cutting with it it would lean out badly. First step was to turn the fuel line over, seems to have a "set" in the line inside the tank that held the pick up off the bottom of the tank. As this one was a little loose where it passed through the tank, I put a few wraps of teflon tape around the molded in grommet and solved the leak...

Now sometime this saw would start and run just fine, other times it was be so flooded you had to lay it on it's side and crank and crank until all the excess fuel cleared. Even then it would still run very lean at WOT. I went through this carburetor a dozen times at least adjusting the metering lever height, lapping the needle and seat, replacing the needle and metering diaphragms, and still it would not seat properly and hold pressure like it should. Finally I got serious and used some valve lapping compound and chucked a short piece of small diameter tygon in the cordless drill that just slipped over the needle and really lapped it. No more leaks around the metering needle, but the carburetor would still not hold pressure.

Finally, taking some advice from an old McCulloch workshop manual I submerged the entire carburetor in a jar of solvent and pressurized it to find a few large bubbles coming from the impulse port and lots of tiny bubbles around the fuel pump cover. I tried replacing the fuel pump diaphragm but it still seemed to leak (bubbles, did not hold pressure). I remembered reading in the Walbro literature about the importance of the "crush ribs" on the fuel pump cover, and decided to change out the plain steel cover for a die cast one with the ribs.

Long story short, problem solved. No more leaks, holds pressure, starts and runs very nicely, and seems to be very good on the top end with some 4 stroking out of the cut.

I had a chance to try the saw on Saturday cutting up a large maple tree the boys helped me get down and cut up and wow, what a saw. I also ran my new Dolmar 7900 and I am sure that for all day cutting that will be a nicer saw to run, but for downright cutting pleasure the SP81 is very high on my list right now.

Mark

I have also fixed all the issues on my SP81, and I am with you, one of my favorite saws to run even over passing my Poulan 245A. What a great 5 cube saw no bigger than a 10-10 in size and I swear as light as my ms441.

 

[ty1220]

Looking for parts for an SP - 81

Howdy all,

I haven't been able to get here much at all for ages, I hope I am posting this in the correct spot.

I just had my 81 go down. I haven't gotten it all tore down yet, but it sure sounds bad when I try and crank it. I am 90% sure that I am looking for a whole new top end. I have located a piston and ring(s) ? for this, I haven't been able to locate a cylinder though. I have tried E- Bay and Chainsawr, plus some random Google searches.

I imagine that some of you guys might have an idea. Thanks in advance for any help or advice you can send my way.

 

[briantutt]

Found this in a dumpster, needed fuel lines so the guy tossed it. Couldn't find box other pieces were supposed to be in. Trying to decide if i get it going again or see if anyone can use what's left. He wasn't sure which model it is either. Know it's not worth much as far as value for sale, but firgured if i could find parts cheap it may be worth learning on and be a decent little backup saw when done.

You have yourself a deluxed version of the Eager Beaver. PM me if you want the IPL.

 

[Snyper438]

You have yourself a deluxed version of the Eager Beaver. PM me if you want the IPL.

Big thsnks for the IPL Briantutt, now i at least know what's missing, lol. Now just gotta gather parts and let the fun begin.

Ed

 

[Deprime]

I am desperate for a manual for a Mac Pro 700, can you help me? My e-mail is [email protected]
Thanks Tambia

I don't have one specific to the PM700 but I have some that should give you some good reference. PM sent.

 

[HeRoze]

Howdy all,

I haven't been able to get here much at all for ages, I hope I am posting this in the correct spot.

I just had my 81 go down. I haven't gotten it all tore down yet, but it sure sounds bad when I try and crank it. I am 90% sure that I am looking for a whole new top end. I have located a piston and ring(s) ? for this, I haven't been able to locate a cylinder though. I have tried E- Bay and Chainsawr, plus some random Google searches.

I imagine that some of you guys might have an idea. Thanks in advance for any help or advice you can send my way.

how good does the outside have to look for ya?

 

[boda65]

I had a 76 International I used in my business for 17 years.
Came with 345 engine, Later put a 392 in it. Great truck for
hill climbing,not real fast on the highway with the low gears in
there rear end.

Cliff, would you happen to have any more pictures of that log splitter? That is an interesting design.
Jim

 

[Eccentric]

Nice to see Cliff's pic again. Neat opperation. I'd love to have that IHC dump truck.