McCulloch Chain Saws

[promac850]

Ron, hope you get her straightened out sooner rather than later.

Still on topic of Macs... (sorry, no nipples or tits...)

The 790 lives... its vicious bark is heard in this video... Removed the air vane governor, and tweaked the carb a little.

[video=youtube_share;lxdq8hPrTSw]http://youtu.be/lxdq8hPrTSw[/video]

 

[promac850]

Who's going to be the proud owner of the 890 on the bay?
I know someone on this furum needs a big heavy Mac geardrive
for there collection. It didn't look to bad. Seen much worse.




Lee

Not gonna be me. Got other Macs and a few more saws that need attention. New (to me) ones are welcome to arrive on my doorstep unannounced, however...

Once I get all of these running, I'll make a video of them idling, all at once. Won't be as good as your video of all of the 166's idling at once, though...

 

[heimannm]

Lee - this one is equipped with the McCulloch flat back / choke version. I have had pretty good success with the flat back carburetors and try to keep them in the saws they come in. I think they are a lot more sensitive when making adjustments so you have to go carefully, but I have several saws and now the Target and all seem to be O.K.

Mark

 

[heimannm]

And on to the next one...

I have been whittling away on the saws sitting on the floor in the shop trying to get some cleaned up and back up on the wall (10 Series) and others that came from the big haul earlier this year. After the success with the 795L/Target I was feeling rather confident so I tackled another saw today. This was a (600 Series) 650 from the haul. I had run it a bit previously but it smoked, leaked oil, and didn't seem to idle and accelerate as it should.

I took it all the way down and replaced the rings, Jeff was here to today to help clean the parts as I was taking it down and putting it back together. Even so, we ran into a few snags along the way, a few stripped threads, damaged or missing parts, but in the end we got it back together and running nicely after changing out the carburetor.

One curious thing we found, even though is it equpped with a compression release, it didn't seem to be working properly so I pulled it out again and discovered that the port is either plugged, or is was never bored all the way through to begin with. I stuck a questionable compression release valve in the hole just to block it off but all in all it seems like it will make a good saw for Jeff.

It was missing the brake handle and lever so I put a different clutch cover on it for now, I will probably return it to the original bulky wrap around brake handle since that was the original set up.

Mark

 

[promac850]

Mark, good to see another cinder block back online. I still think people underrate the series a bit. Sure, they're not exceptional, but they certainly aren't junk either. Just one of those decent saws that can pull a bigger bar than it looks or sounds like it could.

Some others here kept saying it'd be happier with a 16" bar, bullocks. It does great with the 20" Have heard of others using 24" and 28" bars on these saws, stock, with no problems.

As for that cut off saw... looks like something I'd use every now and then... pretty cool. Didn't know Target sold saws and stuff until you mentioned so. I knew Sears did, but Target? Cool.

 

[Eccentric]

Mark, good to see another cinder block back online. I still think people underrate the series a bit. Sure, they're not exceptional, but they certainly aren't junk either. Just one of those decent saws that can pull a bigger bar than it looks or sounds like it could.

Some others here kept saying it'd be happier with a 16" bar, bullocks. It does great with the 20" Have heard of others using 24" and 28" bars on these saws, stock, with no problems.

As for that cut off saw... looks like something I'd use every now and then... pretty cool. Didn't know Target sold saws and stuff until you mentioned so. I knew Sears did, but Target? Cool.

Not the same Target Kyle.

 

[Roanoker494]

Could someone tell me what size engine the model 1-71 has? I thought they were one of the 87cc versions but I have a feller, who wants to sell me his saw, that claims they are 6.2 cubic inches.

 

[homelitejim]

Could someone tell me what size engine the model 1-71 has? I thought they were one of the 87cc versions but I have a feller, who wants to sell me his saw, that claims they are 6.2 cubic inches.

Yep 87cc.
Model Profile: 1-71

On another note, I have a SP80 and a PM850 sitting here but only enough good parts to build one. I am favoring the SP80 over the PM850 for some reason, and would like your input. I have sacrificed a PM850 before to get a really nice CP70 up and running and it is one of my favorite saws to cut wood with. I do have a SP81 which is the same body wise as the SP80 and I do not have a running PM850 and I think unless you can change my mind I will be adding a SP80 to the running list.

 

[Eccentric]

That's a tough call Jim.

 

[joeymt33]

[/QUOTE]On another note, I have a SP80 and a PM850 sitting here but only enough good parts to build one. I am favoring the SP80 over the PM850 for some reason, and would like your input. I have sacrificed a PM850 before to get a really nice CP70 up and running and it is one of my favorite saws to cut wood with. I do have a SP81 which is the same body wise as the SP80 and I do not have a running PM850 and I think unless you can change my mind I will be adding a SP80 to the running list.[/QUOTE]

maybe this will help in favor of he 850.....

[video=youtube;LBL0w2ib-nU]http://www.youtube.com/watch?v=LBL0w2ib-nU[/video]

 

[joeymt33]

well crap, i sold a 1-70 on ebay and just found out the buyer is a kart guy. he emailed and wanted to know how many more big macs i have. he said he wanted them for kart motors. i won't be selling any more to that guy. i didn't want it which is why i sold it, but i can't stand the thought of someone tearing it down for karts

 

[cpr]

Could someone tell me what size engine the model 1-71 has? I thought they were one of the 87cc versions but I have a feller, who wants to sell me his saw, that claims they are 6.2 cubic inches.

I've said it before and I'll say it again. The 7.5s are a thrill, but the 1-7x 5.3s are my favorites.


Kyle, glad to hear it running. No surprise about the flywheel nut. Been there. Check all fasteners over the next couple of weeks. You'll find the thing will shake out all sorts of stuff.

 

[dieselsmoke]

Kyle, great finish to a long chapter..... Locktite is your friend. After cutting, when you clean up your saw its a good idea to go all around it and check the cover screws for missing or loose.

 

[dieselsmoke]

Yep 87cc.
Model Profile: 1-71

On another note, I have a SP80 and a PM850 sitting here but only enough good parts to build one. I am favoring the SP80 over the PM850 for some reason, and would like your input. I have sacrificed a PM850 before to get a really nice CP70 up and running and it is one of my favorite saws to cut wood with. I do have a SP81 which is the same body wise as the SP80 and I do not have a running PM850 and I think unless you can change my mind I will be adding a SP80 to the running list.

+1 for the SP-80, I kinda like the old school look of the early ones, with the short clutch cover and no CB.

 

[Warped5]

+1 for the SP-80, I kinda like the old school look of the early ones, with the short clutch cover and no CB.

+1 here too!

 

[Ambull]

well crap, i sold a 1-70 on ebay and just found out the buyer is a kart guy. he emailed and wanted to know how many more big macs i have. he said he wanted them for kart motors. i won't be selling any more to that guy. i didn't want it which is why i sold it, but i can't stand the thought of someone tearing it down for karts

I wouldn't worry too much about it, as it goes the other way too. I have a nice Kart motor that I am looking for a donor saw. A 101B with a sloper and a BDC carb. I got a SP125 with some problems for $300, and it turned out that the problems were very minor. The piston still had machine marks on it, and no scuffing at all. Just couldn't bring myself to tearing it down, and cutting up the tank for this project. So if anybody has a SP125 carcass with a blown motor, I am extremely interested.

I also have a Super 250 that is going to get an MC91 kart motor in the near future.

 

[promac850]

well crap, i sold a 1-70 on ebay and just found out the buyer is a kart guy. he emailed and wanted to know how many more big macs i have. he said he wanted them for kart motors. i won't be selling any more to that guy. i didn't want it which is why i sold it, but i can't stand the thought of someone tearing it down for karts

This is one reason I'll be VERY reluctant to sell any big Macs. It's heresy for a perfectly good saw to be torn down and all of its bits scrapped for someone to turn it into a kart clone. Kinda like taking a good Mazda RX-7 and tearing the rotary out to put a v8 in. Stupid. Or taking a IH truck and putting a Ford or Chevy v8 in place of its original IH engine. Another stupid idea.

I hope others take notice to this guy. If you don't mind, would you pm me his ebay name, and if you wish, include his real name in case he gets sneaky and attempts to get more by making a new account.

I've said it before and I'll say it again. The 7.5s are a thrill, but the 1-7x 5.3s are my favorites.


Kyle, glad to hear it running. No surprise about the flywheel nut. Been there. Check all fasteners over the next couple of weeks. You'll find the thing will shake out all sorts of stuff.

Me too. This thing idles rough enough to get a lady off, so it'll certainly need the fasteners checked after each running. Thanks again for this project... it was fun and a little frustrating. End result = awesome and totally worth it.

Kyle, great finish to a long chapter..... Locktite is your friend. After cutting, when you clean up your saw its a good idea to go all around it and check the cover screws for missing or loose.

It is good to finally hear this beast run... I'm gonna find me a big bar and then a big tree to cut down...

It's loud. I can't imagine Lee's 101G with the rectangular megaphone... deaf ear is ringing a little right now, and that's a couple hours after I started it earlier this morning. Yeah, and it's got the thump you can feel while it's idling. After making that video, I was grinning ear to ear...

See above... and I will be applying locktite to most of the hardware.

I have to do a little minor tear down and get the oil tank to stop peeing bar oil all over the place. I think the problem is the gasket in between the stuffer and the oil tank. I will be making a new gasket and giving it a thin coat of threebond. Also going to do a thorough check over of the bottom of the oil tank... I may need to apply JB weld to the bottom of the tank to fill in the pitting from corrosion.



As for the 850 or the SP80, I vote 850 with intake and exhaust port clean up and some polishing. You'll love it. Or have Stumpy or Mastermind do the work on the cylinder... I bet they'd find some major gains that I don't know how to/have the tools to extract yet.

 

[cpr]

I wouldn't worry too much about it, as it goes the other way too. I have a nice Kart motor that I am looking for a donor saw. A 101B with a sloper and a BDC carb. I got a SP125 with some problems for $300, and it turned out that the problems were very minor. The piston still had machine marks on it, and no scuffing at all. Just couldn't bring myself to tearing it down, and cutting up the tank for this project. So if anybody has a SP125 carcass with a blown motor, I am extremely interested.

I also have a Super 250 that is going to get an MC91 kart motor in the near future.

Somebody rep him for me. I'll try to be a bad influence some more.

I've been away some, did Lee or Brad get their's going?

 

[leeha]

Somebody rep him for me. I'll try to be a bad influence some more.

I've been away some, did Lee or Brad get their's going?

No, Not yet charles. I gave up on the 125-101 for a bit.
Just can't seem to get the carb problem figured out.
The 101G is always a good runner.




Lee

 

[a. palmer jr.]

Kyle, great finish to a long chapter..... Locktite is your friend. After cutting, when you clean up your saw its a good idea to go all around it and check the cover screws for missing or loose.

Blue Loctite is your friend. Don't use the red unless you never intend to take it off again!