Mark
McCulloch Chain Saws
- Thread starter Bruce Hopf
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Mark
Looking through the IPL it seems the only difference is thick ring in the CP125 and thin ring in the CP125S.
I have one of each but the CP125 has been bored to 0.030" oversize. Both run well and neither get used very much.
Mark
I have one of each but the CP125 has been bored to 0.030" oversize. Both run well and neither get used very much.
Mark
I have been developing some interest in the PM1000, so I have been keeping an eye out for one for a while. A dealer that I work with has one with a Mac 24" bar, Mac 28" bar, and Windor 24" bar. 140 psi, and fires with a prime, he's asking $250. Does this seem like a fair price? He told me condition is about a 7, he's old school and can't send pictures.
The PM1000 is the Partner P100. E-bay saws range from $250 to almost $500.
Most of the PM1000 with the McCulloch label are set up to use the same bar as all of the 10 Series and 600 Series saws with 5/16" or maybe 8 mm studs. I understand the Partner saws had a different set up.
I have one but I am not impressed by it. Perhaps if it ever ran enough to get everything working it would be a different story. Seems like I have to work on the oiler every time I run the saw.
Mark
Most of the PM1000 with the McCulloch label are set up to use the same bar as all of the 10 Series and 600 Series saws with 5/16" or maybe 8 mm studs. I understand the Partner saws had a different set up.
I have one but I am not impressed by it. Perhaps if it ever ran enough to get everything working it would be a different story. Seems like I have to work on the oiler every time I run the saw.
Mark
I would like to find a CP125 but they are few and far between. Also does anyone know where I can get a piston and rings for a PM800. Been looking for a while and cannot find one.
Mark, you mention thin rings V thick rings. I blew my PM800 the other day and bought a used cylinder. It came with a new after market piston that has the thick rings and the old piston had the thin rings. Do you know any difference in the two. I am sending the old cylinder off to be rechromed, rather nikisiled and need a piston for it. It just has a small flake of chrome flaked off it and they think they can fix it. PM800 cylinders are getting scarce and hope thay can fix this one. Brian
Mark, you mention thin rings V thick rings. I blew my PM800 the other day and bought a used cylinder. It came with a new after market piston that has the thick rings and the old piston had the thin rings. Do you know any difference in the two. I am sending the old cylinder off to be rechromed, rather nikisiled and need a piston for it. It just has a small flake of chrome flaked off it and they think they can fix it. PM800 cylinders are getting scarce and hope thay can fix this one. Brian
Pistons for the SP81/PM850PM800 etc. are on e-bay all the time, customchainsawparts has the "B" piston with rings for $45. The "A" and "C" pistons are less common, but the "A" and "C" blocks are less common as well.
Thin rings are great for high performance but don't last as long as a thick ring. Less drag in the cylinder so the engine will make more HP for awhile. Most of the kart engines used thin rings and the racers typically replaced them after each event.
Let us know how it goes with the re-plating of the cylinder. I have a number of 82 cc and 102/125 cc cylinders that are currently junk.
Mark
Thin rings are great for high performance but don't last as long as a thick ring. Less drag in the cylinder so the engine will make more HP for awhile. Most of the kart engines used thin rings and the racers typically replaced them after each event.
Let us know how it goes with the re-plating of the cylinder. I have a number of 82 cc and 102/125 cc cylinders that are currently junk.
Mark
astnmacgto
Carnac The Magnificent
I gave 350 for my 1000, It was one owner with minimal use on it, I'd give it a 9/10 rating as it only has a couple stains on the paint and one decal is missing
astnmacgto
Carnac The Magnificent
Mine also came with original bar and chain
This is just around the corner from me. Tempting as a conversation piece, but sure would take up a lot of space and I'd probably never get to it aside from moving it around to keep from tripping over it. Looks relatively complete but in pretty rough shape. 5-49 ~ 1225A maybe? Can't tell from the tag. It's been sitting out in the weather for a long time. Worth buying for any hard-to-find parts?
RandyMac
Stiff Member
Lawn ornament.
Deck ornament. And knowing the guy, will probably still be there in the spring.
Mark:
Thank you for the information. This maybe why my PM800 out performed Ron's at the saw off we had. I do think I want the thicker rings. I would sacrifice some performance for longevity as I do use this saw a lot. Could it have been rebuilt somewhere along the way and someone used a cart piston or did some of them come with those rings in them and some did not. On re-plating them they must be in very good shape. They will not weld on them like an open cylinder. Like the cylinder I am going to send them it just has a piece of chrome flaked off but not gouged into the aluminum. The piston size, meaning A,B,C does not matter, they will size the cylinder to the piston that you send them when they re-plate it. They will make sure the ring end gap is to spec and the piston to cylinder wall spacing is correct. I have had them do many motorcycle cylinders for me at my shop and they do excellent work. About a week turn around time once they get it. The 125cc has an open cylinder if I remember right. They can weld on it. I have sent them some very bad looking cylinders before and they come back like new. I just wished they could nikisil the outer ring edges. Many motors now days have this and the friction I bet would be less than the thin rings. If I blow one of my 10-10s I will have them repair and nikisil it even though it is cast. If my PM800 cylinder had had this coating it would not have been damaged. I blew my son's Suzuki LT80 up the other day, held it wide open around the track for 5 laps and somewhere during that time the auto oiler quit working. I had had it tricomed the last time I rebuilt it and it ate the piston but the cylinder was alright. Really what they are using now is called tricom which is harder than nikisil. I talked to a guy named Mark there and he said that it was alright to run cast rings on them. It will not hurt this stuff because it is so strong.
Thank you for the information. This maybe why my PM800 out performed Ron's at the saw off we had. I do think I want the thicker rings. I would sacrifice some performance for longevity as I do use this saw a lot. Could it have been rebuilt somewhere along the way and someone used a cart piston or did some of them come with those rings in them and some did not. On re-plating them they must be in very good shape. They will not weld on them like an open cylinder. Like the cylinder I am going to send them it just has a piece of chrome flaked off but not gouged into the aluminum. The piston size, meaning A,B,C does not matter, they will size the cylinder to the piston that you send them when they re-plate it. They will make sure the ring end gap is to spec and the piston to cylinder wall spacing is correct. I have had them do many motorcycle cylinders for me at my shop and they do excellent work. About a week turn around time once they get it. The 125cc has an open cylinder if I remember right. They can weld on it. I have sent them some very bad looking cylinders before and they come back like new. I just wished they could nikisil the outer ring edges. Many motors now days have this and the friction I bet would be less than the thin rings. If I blow one of my 10-10s I will have them repair and nikisil it even though it is cast. If my PM800 cylinder had had this coating it would not have been damaged. I blew my son's Suzuki LT80 up the other day, held it wide open around the track for 5 laps and somewhere during that time the auto oiler quit working. I had had it tricomed the last time I rebuilt it and it ate the piston but the cylinder was alright. Really what they are using now is called tricom which is harder than nikisil. I talked to a guy named Mark there and he said that it was alright to run cast rings on them. It will not hurt this stuff because it is so strong.
brandonstc6
Addicted to ArboristSite
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astnmacgto
Carnac The Magnificent
I would guess a d30 because of the top recoilcan anyone identify this saw? I know I am going to need a clutch cover. Thanks
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brandonstc6
Addicted to ArboristSite
astnmacgto
Carnac The Magnificent
brandonstc6
Addicted to ArboristSite
I found it on the scrap yard. The clutch cover got broke when it was thrown in the pile :/
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fechtichmac
ArboristSite Operative
D 36
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