MCCULLOCH The official McCulloch thread

[Al Smith]

So evidently then it was perhaps the same place the "Titan " series came from ? I only speculate that perhaps since McCulloch had basically no vertical cylinder models they chose to go this way .None the less it was an end play in a manner of speaking . I do however have a Titan 70 which is 100 percent totally stock .It took me over one year to find the correct fuel cap .

 

[Dream]

Ok, so its running and cutting.
Not terrible really.
I need to work on the chain a bit more.
Someone hacked it up with one of those hand held rotary grinders I believe.
Took a bit to get the carb to take tune. It was boggy as crap for the longest.
I went a turn or so on both screws with not much help, then finally it seemed to spit out whatever was still plugged and began to respond to tuning.
Runs and idles well. No bog, doesn't surge. No apparent air leaks, though I havent pressure or vac tested.
Wasnt planning to go to that much trouble.


Oh, and if anybody needs to know, the tank vent is in this little totally unessecary brass doodad.
Standard Stihl DB valves fit. Just pop the two halves apart, scrape out the old one, drop a new one in, and tap back together.
I put one end in the vice and twisted the other out with pliers.

 

[edju1958]

I'm not overly impressed with the build quality, I'll say that up front.
Got the fuel inlet fitting epoxied right now.
Had one of those Irish Marvel Shebler Tilly carbs with the plastic snap on(off) inlet fitting that cracked.
Soaked the carb. Diaphragms still felt decent. Will find out soon.
Definitely not a fan of the single bar stud that also functions as a case bolt, and will fall out if something isnt put behind it. I'm assuming it had a retainer ring of some sort at one time, but thats long gone. Now it has a 5/16" bolt with jam nuts thats held in by the recoil cover.
I found out the hard way that the nuts were needed to keep the bolt from falling over into the flywheel when its running.
Now I have to get the flywheel off the parts saw that dad has. Broke a fin clean off.

One broken fin doesn't hurt a thing.You won't even get vibration.

 

[Woodslasher]

Another day, another two Macs stripped and waiting for a scrubbing. The bummer is the CP crank has a noticeable bit of side to side play so new bearing are in order. The rod still feels solid though, so I'm hoping I won't need to mess with it. I may need to re-sleeve the bore for the pulley shaft as it feels like it has a fair bit of play, and the pulley has a battle scar or two of it's own. I also figured out why the CP would pull any fuel on it's own, the boot has a hole and the impulse hose has a big ol' crack in it. I think I can live with sinking $2-300 into my 125, though!

 

[Woodslasher]

All right fellas, I need a bit of help. The p/n the ipl lists for cp125 crank bearings (66016) is nla everywhere, is there a generic size that will work? Also, are there generic variants of the CP125 pin bearings? If the crank bearings are gone I might as well replace all of the bearings at once instead of running the risk of blowing up my saw.

 

[Squareground3691]

All right fellas, I need a bit of help. The p/n the ipl lists for cp125 crank bearings (66016) is nla everywhere, is there a generic size that will work? Also, are there generic variants of the CP125 pin bearings? If the crank bearings are gone I might as well replace all of the bearings at once instead of running the risk of blowing up my saw.

@jacob j.

 

[Woodslasher]

Well, I figured out the pin bearing are Torrington B-88 bearings, mebbe I'll pull the crank and pull the #'s/sizes off of my current bearings.

 

[jacob j.]

Well, I figured out the pin bearing are Torrington B-88 bearings, mebbe I'll pull the crank and pull the #'s/sizes off of my current bearings.

Crank bearings (main bearings) are 6203. For seals, I use SKF/Chicago Rawhide 6620 and 6640.

 

[Woodslasher]

Crank bearings (main bearings) are 6203. For seals, I use SKF/Chicago Rawhide 6620 and 6640.

Seals have already been ordered, I'll see if work has a set of C3 6203 bearings I can get, otherwise I'll get those ordered up tonight.

 

[Al Smith]

On that boot if you can't find one you can repair it using Loctite #401 which is o-ring glue .

 

[Squareground3691]

Those Traverse Creek boots are a good alternative. https://www.sawsalvage.co/products/...sp105-sp105-69889?_pos=7&_sid=2df0b995f&_ss=r

 

[Woodslasher]

 

[edju1958]

Wow,doesn't anyone here work on their Macs during the month of Aug.?

 

[Maintenance Chief]

Wow,doesn't anyone here work on their Macs during the month of Aug.?

I just moved Ed ,so I just found my electric razor! And various other things still in boxes.
But ... I've got some good saws to build in a few months when I get home and shop straight.

 

[Steve]

Wow,doesn't anyone here work on their Macs during the month of Aug.?

Naw, it's hot!

 

[heimannm]

I have a lot happening this month...



Mark

 

[Woodslasher]

Wow,doesn't anyone here work on their Macs during the month of Aug.?

Does hosing down a 640 and CP125 in a solvent tank count?

 

[edju1958]

Does hosing down a 640 and CP125 in a solvent tank count?

Heck yeah! I know folks go on vacations & have family outings in the summer.Maybe now that it's Sept.things will turn around.Cooler weather coming - more shop time.just the opposite for me,I like to work outside on saws when the weather's nice.

 

[Woodslasher]

I made an interesting discovery yesterday, the CP125 has led a very rough life. It’s looking like something very hard found it’s way behind the flywheel and wreaked all kinds of havoc on everything. The p.o. chipped it so I’m thinking I’ll leave it set up like that, but that point box took a pretty good hit.

 

[Steve]

I made an interesting discovery yesterday, the CP125 has led a very rough life. It’s looking like something very hard found it’s way behind the flywheel and wreaked all kinds of havoc on everything. The p.o. chipped it so I’m thinking I’ll leave it set up like that, but that point box took a pretty good hit.
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Wonder if one of those screws backed out?