McCulloch Chain Saws

[MEATSAW]

Thanks!

Just in case numbers are needed for looking this up, I have the 600052D model with the 15 prefix.

 

[joeymt33]

Thanks!

Just in case numbers are needed for looking this up, I have the 600052D model with the 15 prefix.

i may be able to help with the carb search. post the carb number when you find out what it is and I'll check the pile

 

[joeymt33]

Ventage MCculloch Chain Saw Model Pro Mac 10-10?? | eBay

the saw in this listing has the multiple holes in the side for the carb adjustments. its only a few pages back we were discussing a AS member's saw that had the same thing. I thought it was a frankensaw, but here is another

 

[MEATSAW]

Based on the IPL the part# for the adjustable carb with the screws that don't go through the case is 84015. I am still trying to figure out what model carb that corresponds to. I think it is an SDC and not a Tillotson. Maybe an SDC22? I don't know...

EDIT: Okay I am about 99% sure that it is an SDC22. Now the hunt for one...

 

[buzz sawyer]

3-25 Resto Update

Here's an update on the 3-25. I'm making good progress but didn't realize I didn't take as many "before" pics as I usually do.
I'm waiting on a fuel pump diaphragm.

Here's the side with the decal.

Before and after on the exhaust port.

Here's a top view with the tan removed.

Front and back view. I had to mount the bar to see how it looks. The original plating was in pretty good shape. All three geese are real clear. Somehow I came up with a brand new 1/2" chain that fits it.

The socket for the end of the handle was missing so I made my own. Rubber rod turned to fit the hose and a flange cut in the end, then glued it inside the hose. Have to remove the handle to install it.

 

[buzz sawyer]

Almost forgot - there is one piece that I cannot remember where it goes. Seems like it was on the bar - maybe a stand for the nose?

 

[joeymt33]

here are two carbs you can choose from. either would work for you, it depends on if you want the adjustment screws pointing up and easier to get to or the horizontal screws. PM me if you want one.

 

[joeymt33]

 

[joeymt33]

the model 65 has the needle for the idle adjustment. you will need that since your saw doesn't have the screw through the airbox right?

 

[cpr]

Kyle, try to stay focused. If you can't go back to CPR clips - you'll see at the end of one of them a clip of a cornbinder throwing its engine out and then running over it wedging it between the sled and the tractor. You'll also see one scared little boy who apparently was watching his dad make the run. Ron

Says a lot about me that I knew exactly what you were talking about without going back to watch it. Young Master Van der Waal had great cause for concern. Had that gone differently, the results would have been far worse. Even more disturbing is that the young man, as of that video, was seeing that happen to his father for a second time. There was a third such incident with a customer's engine on a light mod 1 year ago this weekend indoors at Zwolle, NL. That one sent the top of the block, head, and parts of the turbos literally to the roof. Had the starter flagman been standing where it landed, they'd have cleaned him up with a bag and a bucket...

Alky IHs can kill as easily as old school Macs. Respect and stay safe out there.

 

[rheima]

Big firewood weekend.

Hello all! My younger brother, heimannm, was going to help this weekend in Newton,Iowa to help take down 95 dead or dying oak trees. One tree measured 5 foot in diameter. The rest were not quite that big but all were mature trees. Sounds like he is stuck still working so I will give you some of the details of our firewood weekend! About 12 people working at different times. One big John Deere trac hoe,two Cat skid steers with rubber tracks,one rubber tired Cat skid steer with several grapple buckets, forks and buckets. A big tandem axle dump truck, a medium sized single axel dump truck and a tonner pickup pulling a double axel dump trailer. Over seventy-five loads of firewood hauled to six different places. Much of the wood was cut up in usable lengths before it was put on the trucks. None of the wood was split other than what happened when the trees fell down. The wood came from two city parks and the trees were infected with Oak Wilt. We had maybe 15 saws to use and there were five to six going at one time. One person pretty much stayed in the enclosed trailer and sharpened chains and kept the saws running. I brought a couple of my old saws out to use, a 1-63 gear drive that was shooting a steady stream of fire out the exhaust when cutting(not the safest but impressive in a macho way) and the other cutters complained about the noise, and my 10-10 that everyone complained so much that it hurt their ears even with protection that I had to put them back in the truck and use two of my creamsicles, a 031 and 360 Pro. I have never been involved with a group cutting experience like this before and it was fantastic. My son-in-law and his friends were the owners and operators of most of the equipment and it was impressive to watch and be a part of. I swear a couple of the guys could drive finish nails with the track hoe and skid steers. We started after noon on Thursday and worked till about five each night. We finished at 4:30 Sunday evening and only the 6 in. and smaller brush and a couple of piles of sawdust (big) were left. Several of the wives made food and one morning we even had breakfast at the site. The only problem that it was maybe a little too warm and we had to battle mud in the afternoons but no one got hurt and that's the most important thing. We all probably have at least 2 years worth of wood out of this weekend of labor. I will try to get some pictures on the site soon but beer and lots of sleep sound good right now.

Ray (rheima)

 

[rwoods]

Says a lot about me that I knew exactly what you were talking about without going back to watch it. Young Master Van der Waal had great cause for concern. Had that gone differently, the results would have been far worse. Even more disturbing is that the young man, as of that video, was seeing that happen to his father for a second time. There was a third such incident with a customer's engine on a light mod 1 year ago this weekend indoors at Zwolle, NL. That one sent the top of the block, head, and parts of the turbos literally to the roof. Had the starter flagman been standing where it landed, they'd have cleaned him up with a bag and a bucket...

Alky IHs can kill as easily as old school Macs. Respect and stay safe out there.

I'm surprised the some part didn't take out the flag man in the clip shown. Can't emphasize awareness enough. Ron

 

[rwoods]

Ray, we look forward to the pictures. Too bad Mark missed out on the fun. Ron

 

[Mr. Bow Saw]

Almost forgot - there is one piece that I cannot remember where it goes. Seems like it was on the bar - maybe a stand for the nose?

Your doing a real nice job on that 3-25.:msp_thumbsup:

That piece is a chain guard. One hole Should bolt on to the top of the spikes.


Guard like this 549 has.

 

[MEATSAW]

the model 65 has the needle for the idle adjustment. you will need that since your saw doesn't have the screw through the airbox right?

You are right, my airbox has no place for screws through it. I just looked up carbs on the Walbro website and it says that the 7-10 used a SDC44 and 58. Its showing the 65 was used on the pro 10-10a. Now I am getting confused.

I'm a little hesitant to put a carb from a 54cc saw on a 70cc saw.

I would sure like that 65 though, I just really want to make sure it will work.

 

[joeymt33]

i wanted to show you guys my current project. i'm fixing this one up for sale to pay for another saw. i've got a couple of these, so i'm selling this one to pay for a PM1000. this SP81 was beat badly like a tree fell on it or somebody left it in the bed of the truck and put all the fire wood on top of it. it had some stripped screw holes and the left side cover was busted up too bad to use. it also was missing the clutch cover. i've got a picture from just about every step in the rebuild process if anyone cares to see it. you can see in the pics that some of the screws are not original on the left side cover. those are the ones that were stripped out and had to be drilled and tapped a size larger. everything was reassembled using blue lock tite so the only thing that comes loose is the fillings in your teeth.

So far, i've installed a new intake boot, new front and rear AV mounts, new carb kit, new fuel line, new fuel filter. i checked the points and lamination gap, i also pulled the piston and cleaned the carbon from the chamber and piston. the cranks seals held 10psi without bubbling. (I didn't push it any further than that). its also got a later mcculloch bar with sprocket nose, its a laminated bar but it will do. the bar is 20" and i just installed a new 3/8-8 tooth sprocket. this saw has the dual adjustment carb and an almost new air filter. the paint job is kinda crappy, it just takes too long to sand one completely down. but the paint looks better than the flakey paint that was on it before. compression is too stout to test, my fingers can't take that abuse. as soon as that cover arrives that Ron is sending, i'll test it out and make a video.

 

[joeymt33]

You are right, my airbox has no place for screws through it. I just looked up carbs on the Walbro website and it says that the 7-10 used a SDC44 and 58. Its showing the 65 was used on the pro 10-10a. Now I am getting confused.

I'm a little hesitant to put a carb from a 54cc saw on a 70cc saw.

I would sure like that 65 though, I just really want to make sure it will work.

it will work no prob, they are the same size. i've also got a SDC 44. i didn't look for a 58, though there may be one out there.

 

[homelitejim]

i wanted to show you guys my current project. i'm fixing this one up for sale to pay for another saw. i've got a couple of these, so i'm selling this one to pay for a PM1000. this SP81 was beat badly like a tree fell on it or somebody left it in the bed of the truck and put all the fire wood on top of it. it had some stripped screw holes and the left side cover was busted up too bad to use. it also was missing the clutch cover. i've got a picture from just about every step in the rebuild process if anyone cares to see it. you can see in the pics that some of the screws are not original on the left side cover. those are the ones that were stripped out and had to be drilled and tapped a size larger. everything was reassembled using blue lock tite so the only thing that comes loose is the fillings in your teeth.

So far, i've installed a new intake boot, new front and rear AV mounts, new carb kit, new fuel line, new fuel filter. i checked the points and lamination gap, i also pulled the piston and cleaned the carbon from the chamber and piston. the cranks seals held 10psi without bubbling. (I didn't push it any further than that). its also got a later mcculloch bar with sprocket nose, its a laminated bar but it will do. the bar is 20" and i just installed a new 3/8-8 tooth sprocket. this saw has the dual adjustment carb and an almost new air filter. the paint job is kinda crappy, it just takes too long to sand one completely down. but the paint looks better than the flakey paint that was on it before. compression is too stout to test, my fingers can't take that abuse. as soon as that cover arrives that Ron is sending, i'll test it out and make a video.

Such a good job I left the pics in. Now what I am going to say might shock you. I would rather have that SP81 over a Partner P100 oops I mean a PM1000. Now a SP125 would be something I could sell a SP81 for if I had more than one but if I only had 1 I would keep it. Great power to weight, parts are easily accessible, great saw that I still use as a firewood saw. The last P100 I saw was only $199 and it had been completely rebuilt.

 

[joeymt33]

it will work no prob, they are the same size. i've also got a SDC 44. i didn't look for a 58, though there may be one out there.

the model 44 that i've got has the extended needles for the high and low. it is also doesn't have the idle adjustment screw built in. i don't think this will work for you either.

hopefully someone will come along and tell us for sure that you can use the model 65 without any negative side effects

 

[Eccentric]

Here are some pictures of my 7-10A I got today. Its it great shape! I am going to have to replace the fuel line & filter but that's nothing. The previous owner had a 16" bar on it, but that won't stay very long. I am going with a 24".

My only issue with this saw is that it has the carb with only the idle adjustment screw. I really like having the ability to tune the carb, especially since I doubt the carb was designed with running 45:1 mix. Can I swap to a fully adjustable carb? What model would that be?

And here are the pics...

That is a good looking 7-10. Aaron should be along with the sdc carb # you need, I think he posted the #'s here in this thread if you look back a few 50 pages or so.

LOL!

Sorry I'm late to the party. Was out in the shop working on McCullochs.

An SDC38A will work, but you'll have to drill your fuel tank/carb box casting for the needle boot.........and you'll need a needle boot from a SP-80/81, PM800, PM850, PM8200, or DE80. This is because the SDC38A has long needles that pass all the way through the carb box.

An SDC37A will have the two short needles, but they stick straight out of the carb. That means you'd have to remove the AF cover and reach over the edge of the carb box with a screwdriver. Bit of a PITA, but not impossible.

Those SDC's were both used on various 70cc and 82cc McCullochs. I've seen both of those models used and NOS on feebay recently. I have a used SDC38A (with boot) that I'm going to be swapping into my single-needle SDC equipped SP-81 soon.

There are several other SDC's that'd work. The larger bore ones (same bore as what was used on some S797 and CP125 saws) are the SDC18 (with short, 'straight out' needles) and SDC22 (straight needles, but with heads made to accept the extensions as seen on 2-10 saws). I'm sure there are several other SDC models that'd work. My MCulloch Chainsaw Carburetors publication only covers the older saws and doesn't go above the SDC22. I need a more recent list. Mark sent me copies of several McCulloch publications recently. I need to go through those.

Thanks!

Just in case numbers are needed for looking this up, I have the 600052D model with the 15 prefix.

Based on the IPL the part# for the adjustable carb with the screws that don't go through the case is 84015. I am still trying to figure out what model carb that corresponds to. I think it is an SDC and not a Tillotson. Maybe an SDC22? I don't know...

EDIT: Okay I am about 99% sure that it is an SDC22. Now the hunt for one...

So you have the exact IPL for your saw? Just in case you don't, I'll PM you the link to it.

here are two carbs you can choose from. either would work for you, it depends on if you want the adjustment screws pointing up and easier to get to or the horizontal screws. PM me if you want one.

Very generous of you. My SDC38A came to me from an AS member too. The SDC65 you pictured has a third screw for idle speed adjustment (bears on the throttle plate) as well as the tab on the throttle arm for an external idle speed screw (which some saws have), while the SDC22 you pictured only has the tab on the throttle arm for the external screw.

Edit:

I just went back and looked at MeatSaw's saw. It's set up for the integral idle speed screw carbs. I'll bet the tank/carb box casting has the unmachined boss for the external adjustment screw. I've seen MANY 10-series saws with integral idle speed screw carbs that had this unmachined boss on the tank/carb box casting. A careful hand could drill out that boss and tap it for the external adjustment screw (from a parts saw). It's at an angle, so it'll be a little tricky.

You are right, my airbox has no place for screws through it. I just looked up carbs on the Walbro website and it says that the 7-10 used a SDC44 and 58. Its showing the 65 was used on the pro 10-10a. Now I am getting confused.

I'm a little hesitant to put a carb from a 54cc saw on a 70cc saw.

I would sure like that 65 though, I just really want to make sure it will work.

When you looked up those carbs, did you notice the throttle bore and venturi measurments? The "big bore" SDC's are .812"/.750". "Smaller bore SDC's" (which were still used on 70cc 6-10's, and would surely work just fine since they're fully adjustable (no fixed H side jet) are .750"/.625".