RandyMac
Stiff Member
3-10E, piston and cylinder are pretty nice, it turns over smoothly, this is all there is, no other parts.
McCulloch Chain Saws
- Thread starter Bruce Hopf
- Start date
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Mac 250
I posted about this saw with the other 2 I got from a relative this weekend in "Picked up 3 saws this weekend" thread. It does turn over but doesn't run and I haven't really torn into it yet. When I asked about it, my relative said i was getting "hard to start" and thought the compression was geting weak, so on to the shelf it went. It seems to have decent compression when I pull it over but I don't have a compression tester to settle the matter. Hopefully I can get a answer tomorrow. Here's some pic's:
Seeing questions on the carbs on the 250's and if rebuild kits are still available for certian ones a while back, are kits still available for this one? This carb has HL 630 stamped on it.
I posted about this saw with the other 2 I got from a relative this weekend in "Picked up 3 saws this weekend" thread. It does turn over but doesn't run and I haven't really torn into it yet. When I asked about it, my relative said i was getting "hard to start" and thought the compression was geting weak, so on to the shelf it went. It seems to have decent compression when I pull it over but I don't have a compression tester to settle the matter. Hopefully I can get a answer tomorrow. Here's some pic's:
Seeing questions on the carbs on the 250's and if rebuild kits are still available for certian ones a while back, are kits still available for this one? This carb has HL 630 stamped on it.
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Brian13
Addicted to ArboristSite
It seems to be the Mac carbs kits that are hard to find but not impossible. This should be what you need for yours. Hopefully someone can verify.
http://cgi.ebay.com/REBUILD-repair-...tem&pt=LH_DefaultDomain_0&hash=item5ad020f700
http://cgi.ebay.com/REBUILD-repair-...tem&pt=LH_DefaultDomain_0&hash=item5ad020f700
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cpr
Addicted to ArboristSite
I posted about this saw with the other 2 I got from a relative this weekend in "Picked up 3 saws this weekend" thread. It does turn over but doesn't run and I haven't really torn into it yet. When I asked about it, my relative said i was getting "hard to start" and thought the compression was geting weak, so on to the shelf it went. It seems to have decent compression when I pull it over but I don't have a compression tester to settle the matter. Hopefully I can get a answer tomorrow. Here's some pic's:
Seeing questions on the carbs on the 250's and if rebuild kits are still available for certian ones a while back, are kits still available for this one? This carb has HL 630 stamped on it.
Carb is stamped HL63G... Get Tillotson kit RK-88-HL and read this: http://www.arboristsite.com/showthread.php?t=64450&highlight=hl you'll be good to go. How much you want for that 250??? j/k I have enough projects!!!!
RandyMac
Stiff Member
I don't see any models of that design in your sig, a 250 would make a good start.
stinkbait
Addicted to ArboristSite
Does anyone have a full wrap handle for the 650 gear drive mcculloch? It's not the same as the full wrap on the 250, it's wider on the clutch side. Mine is busted.
mweba
Addicted to ArboristSite
Had some spare time today so I set up a 32" log for cutting cookies.
Mark, This was the biggest I had laying around. 32" on one end and 28" on the other. Also a 37" chunk sitting off to the side.
Vid of the pro mac 700 http://www.youtube.com/watch?v=Oew0OD3CAMo
Mark, This was the biggest I had laying around. 32" on one end and 28" on the other. Also a 37" chunk sitting off to the side.
Vid of the pro mac 700 http://www.youtube.com/watch?v=Oew0OD3CAMo
Update...IT LIVES AGAIN!!!
Well a visit to the saw shop proved helpful. Compression was 110-120 psi range as well as good spark. So after I got home I tinkered with the 250 a little bit, mostly cleaning some of the "who knows how many years" oily caked-on sawdust off.
I got most of it off but I don't have access to compressed air at home so I didn't do a very thorugh job. The chain is .404, and is soaking in a bucket of drain oil to try and free up a few sticky links. So then I tried to see if the saw would at least fire, dumped out the old gas, poured in some fresh mix into the tank and a little down the carb and after a few pulls she sputtered, the next pull while squeezing the trigger and pulling she fired right up. It does run and rev up ok but doesn't want to idle very well, though. So some cleaning/adjusting of the carb plus new fuel line/filter and a new spark plug are on the to do list.
Well a visit to the saw shop proved helpful. Compression was 110-120 psi range as well as good spark. So after I got home I tinkered with the 250 a little bit, mostly cleaning some of the "who knows how many years" oily caked-on sawdust off.
I got most of it off but I don't have access to compressed air at home so I didn't do a very thorugh job. The chain is .404, and is soaking in a bucket of drain oil to try and free up a few sticky links. So then I tried to see if the saw would at least fire, dumped out the old gas, poured in some fresh mix into the tank and a little down the carb and after a few pulls she sputtered, the next pull while squeezing the trigger and pulling she fired right up. It does run and rev up ok but doesn't want to idle very well, though. So some cleaning/adjusting of the carb plus new fuel line/filter and a new spark plug are on the to do list.
A round muffler in good condition just about doubles the value of a saw like that. I think all of my 250's have the stack, the Super 250's both have the round muffler though.
Mark
Mark
RandyMac
Stiff Member
There are two styles of round mufflers, the heavy duty with the clamp, and a somewhat tinny sheet metal version. The pic at post #1947 shows both types.
The clamp type on the "later" saws were significantly better that the two screw type. On the very early saws like the 3-25/47/73 the one piece round mufflers seems to be good forever. Same thing on the 33/35 saws, you rarely see a ratty looking muffler on one of those.
I have one NOS round one with the three bolt mount like the 795, $58++.
Mark
I have one NOS round one with the three bolt mount like the 795, $58++.
Mark
I have several NOS McCulloch starter handles for the big saws. They don't look right on anything but a big old McCulloch with that long, skinny base.
Mark
Guido Salvage
Supreme Saw Whoreder
My first Macs
Up until recently I did not own any Macs. Picked this 10-10S up a couple of weeks ago:
Today I went chasing after some saws that were advertised on Craigslist. He claimed to have 9, but found some more in his sheds. I spotted the handle of one he had missed and talked him into bringing it outside. In the end, I also ended up with this 640 bow saw (along with 13 others including a Timberbear with a bad starter).
Up until recently I did not own any Macs. Picked this 10-10S up a couple of weeks ago:
Today I went chasing after some saws that were advertised on Craigslist. He claimed to have 9, but found some more in his sheds. I spotted the handle of one he had missed and talked him into bringing it outside. In the end, I also ended up with this 640 bow saw (along with 13 others including a Timberbear with a bad starter).
More progress on the 250
Now she idles ok, took it back in to the shop again today. Had the owner give it a try, see what he thought. Other than having to give it a shot of gas to start and adjusting the idle, no other adjustments. Once the saw is warm she starts up ok. Had him make up a new Carlton chain for it as well. Took it over to a farmer friend's shop and gave 'er a good cleaning with the air compressor.
After a decent cleaning with air and some elbow grease and a rag, she doesn't look to bad for a shed find.
Cleaned up the plug on the wire wheel, cleaned out the air filter and put the new chain on and she's ready for work.
Went out and did a few test cuts on some chunks of firewood he had piled up outside. Now if it will stop raining so I can get out and get some real cuttin' done.
(PS, Mark, how big are those 550's?-neat saws by the way)
Now she idles ok, took it back in to the shop again today. Had the owner give it a try, see what he thought. Other than having to give it a shot of gas to start and adjusting the idle, no other adjustments. Once the saw is warm she starts up ok. Had him make up a new Carlton chain for it as well. Took it over to a farmer friend's shop and gave 'er a good cleaning with the air compressor.
After a decent cleaning with air and some elbow grease and a rag, she doesn't look to bad for a shed find.
Cleaned up the plug on the wire wheel, cleaned out the air filter and put the new chain on and she's ready for work.
Went out and did a few test cuts on some chunks of firewood he had piled up outside. Now if it will stop raining so I can get out and get some real cuttin' done.
(PS, Mark, how big are those 550's?-neat saws by the way)
Guido, that 640 Bow is really cool. I hope you decide to clean it up and make it run again. If not...
Grizzly, make sure the choke closes completely, that was a problem for many of the 200/250 McCulloch saws.
The 550 is 99cc's, this particular one does start and run very nicely.
Mark
Grizzly, make sure the choke closes completely, that was a problem for many of the 200/250 McCulloch saws.
The 550 is 99cc's, this particular one does start and run very nicely.
Mark
What is the proper way to fix that? I'll take closer look at mine tomorrow.
Edit: Also is the oiler just manual on the 250? I used the thumb oiler during the test cuts.
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Mr. Bow Saw
Addicted to ArboristSite
Up until recently I did not own any Macs. Picked this 10-10S up a couple of weeks ago:
Today I went chasing after some saws that were advertised on Craigslist. He claimed to have 9, but found some more in his sheds. I spotted the handle of one he had missed and talked him into bringing it outside. In the end, I also ended up with this 640 bow saw (along with 13 others including a Timberbear with a bad starter).
Nice 10-10,
The 640 is great,looks like it will clean up nice.
stinkbait
Addicted to ArboristSite
Check out that old Mac diaphragm hanging on the front handle bar.
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