McCulloch Chain Saws

[fechtichmac]

sp80 or 81?

:msp_biggrin:Hi!
Saved an other victim from scrap!
AF Cover says sp 80 , number plate says 600438 B /12....= sp81
What`s the difference?
Saw was badly "tinkered" -damaged threads, coil destroyed etc.
Engine like new!
After one day work she runs very good now .View attachment 278246View attachment 278247View attachment 278248

Has the fixed H jet carburetor.

 

[fechtichmac]

Nice parts lot

This came today!
Its from a closed shop here in Germany .
Lots of gaskets ,screws,pistons,oilseals,oilpumps,points ,etc..etc..
all very usefull!
E.View attachment 278252View attachment 278253

 

[8433jeff]

This came today!
Its from a closed shop here in Germany .
Lots of gaskets ,screws,pistons,oilseals,oilpumps,points ,etc..etc..
all very usefull!
E.View attachment 278252View attachment 278253

Looks like you need some mini parts. Have I got a deal for you.

 

[jeepyfz450]

This came today!
Its from a closed shop here in Germany .
Lots of gaskets ,screws,pistons,oilseals,oilpumps,points ,etc..etc..
all very usefull!
E.View attachment 278252View attachment 278253

Any reed valves for a cp125?

 

[fechtichmac]

Any reed valves for a cp125?

Sorry it`s all 10-series parts and afew for small saws.
But i have a good used cp 125 intake cover with reed .
Can give it away.

E.View attachment 278258View attachment 278259

 

[rwoods]

A little MAC falling.

Trying to put a little wood on the ground as I am expecting 6 to 10 firewood cutters to show next weekend. Here are a few from today. First one was a 125C victim. The rest were taken with a PM800. Sorry for so few MAC shots. Ron

125C - Oak, just sly of 3', put on ground with Ric (36" 7 pin 125C) and two Toyotas chained together. Before I left I bucked the stem with Betty (32" 8 pin 125C) to stablize it.

PM800 - 2' plus poplar.

PM800 - 15" to 18" cherry

View attachment 278269View attachment 278270View attachment 278271View attachment 278272View attachment 278273

 

[rwoods]

More pictures.

Cherry on ground. Fire hydrant still in intact.

Small black locust.

Another 18" cherry.

Head height twin stem white oak. Each about 20" or so. I cut the entire stump with the stem that is barely visible and shown on the right in the picture after falling the stem in the foreground.

Find the MAC. Hint - left of left stem - or just look at last picture.

There it is.

Ron


View attachment 278274View attachment 278275View attachment 278276View attachment 278277View attachment 278278

 

[OldDeadWood]

Yet Another Update

Unit from mweba.

These four shots

are the BP-1

after I cleaned up

the parts from chainsawwisperer

and assembled enough parts for a photo.

This BP-1 is presently empty. I need all the ignition part, the starter assembly, the governor assembly and more, but I'm happy with the progress so far.

ODW:hmm3grin2orange:


View attachment 278307View attachment 278304View attachment 278302View attachment 278305View attachment 278306

 

[8433jeff]

Unit from mweba.

These four shots

are the BP-1

after I cleaned up

the parts from chainsawwisperer

and assembled enough parts for a photo.

This BP-1 is presently empty. I need all the ignition part, the starter assembly, the governor assembly and more, but I'm happy with the progress so far.

ODW:hmm3grin2orange:


View attachment 278307View attachment 278304View attachment 278302View attachment 278305View attachment 278306

Please tell me once its a runner you will ditch the safety chain.

 

[OldDeadWood]

That was just for a photo shoot. I hat to disparage the saw but I don't think it will pull a 24" hardnose bar. I will drop back to an 18" sprocket nose.

ODW

 

[8433jeff]

That was just for a photo shoot. I hat to disparage the saw but I don't think it will pull a 24" hardnose bar. I will drop back to an 18" sprocket nose.

ODW

Think again.

 

[bplust]

Good morning, Jerry.

Here is my $.02 and not a penny more ..

There has been much debate/discussion on the forum about sealing tank halves. I have used the 1194 stuff and a couple others with mixed results. I have never had any luck with the McCulloch replacement gaskets. The best results I've yet seen are with Joey's method of using the 3M body emblem foam tape. The PM700 he sold me had that done and it hasn't leaked yet.

On that line coming through the tank wall: I've seen new and used lines leak. Both OEM and AM, makes no difference. My personal rule of thumb is that if I can grab it and turn it easily with two fingers, it will most likely leak. Folks have had OK results with sealants (about the same as with tank halves) and some have reported success after wrapping the line with some Teflon tape.

On one of my 7-10a's, I JB welded a two sided barbed fitting in, and then added short runs of fuel line to make the connections. It's only been two years, so not really much of a "long term" test, but I haven't had a leak yet. I've had both OEM and AM fuel lines that were a month old leak at the seal when it's really cold out.

 

[ELECT6845]

I was referring to ELECT6845 in my earlier post asking of the super 797.

Snooze you loose. LOL
I might let you run it if u ask nicely.

 

[homelitejim]

:msp_biggrin:Hi!
Saved an other victim from scrap!
AF Cover says sp 80 , number plate says 600438 B /12....= sp81
What`s the difference?
Saw was badly "tinkered" -damaged threads, coil destroyed etc.
Engine like new!
After one day work she runs very good now .View attachment 278246View attachment 278247View attachment 278248

Has the fixed H jet carburetor.

There were a few changes between the two but nothing I think you will notice, more than likely the filter cover was not from this saw and replaced a damaged or lost cover. On a side note, you will need a much longer bar and a 8 pin rim, and I like the fixed jet carbs, keeps me from having to tune the saw every time the temperature or elevation changes.

 

[heimannm]

At least some of the SP80 models have a different taper on the PTO side of the crankshaft. I have NOS clutches for both the SP80 and the other 10 Series and the OEM SP80 certainly does not fit properly on the rest of the 10 Series saws; the clutch will snug right up against the drum and lock everything together. The OEM SP80 clutch is a three shoe affair, again quite different from the rest of the 10 Series line up.

I can believe that at some point in the SP80 run they changed the crankshaft to match the rest of the 10 Series as there are 11-, 12-, 13-, and 14- Serial numbers listed.

The SP80 that I have (model 600435, sorry don't have the serial number handy) has the standard 10 Series crankshaft and will not work with the SP80 OEM clutch.

I agree with Jim on the fixed H carburetors, my saws with the fixed jet run well under heavy cutting condition but 4 stroke as soon as you easy off on the pressure.

Mark

 

[heimannm]

OK fellas i need some advice. I picked up a CP125s last weekend. I got it with a 24'' hardnose mac bar. I want to get a 42''+ on it but dont know much anbout the Mac bar options. Do any other factory bars fit on these macs? I was going to adapt my large mount stihl bars but they are quite a bit off and the oil ports will need some major reworking (which i really dont want to do) I found a great deal on a 42'' hardnose mac bar but i think roller nose or sprocket is the way to go in that length. anybody have and bars they would like to sell or know where i can buy new? thanks guys.

There is a 36" sprocket nose on e-bay right now for $85 + shipping.

Mark

 

[fechtichmac]

At least some of the SP80 models have a different taper on the PTO side of the crankshaft. I have NOS clutches for both the SP80 and the other 10 Series and the OEM SP80 certainly does not fit properly on the rest of the 10 Series saws; the clutch will snug right up against the drum and lock everything together. The OEM SP80 clutch is a three shoe affair, again quite different from the rest of the 10 Series line up.

I can believe that at some point in the SP80 run they changed the crankshaft to match the rest of the 10 Series as there are 11-, 12-, 13-, and 14- Serial numbers listed.

The SP80 that I have (model 600435, sorry don't have the serial number handy) has the standard 10 Series crankshaft and will not work with the SP80 OEM clutch.

I agree with Jim on the fixed H carburetors, my saws with the fixed jet run well under heavy cutting condition but 4 stroke as soon as you easy off on the pressure.

Mark

Yes this has the std.10-series two shoe clutch.As well I found out this fixed H jet carb does work very well (after replacing diaphr. and inlet needle) Very good idle,starts fine and great torque under load.Will try with longer bar not before I can fix the problem with the damaged starter fastening points.At time there are only two from the long bolts holding this.
Other question: Can I replace the Flywheel using a 10-10 that looks the same?
This has a braken Fin so I notice vibration from incorrect balance.

Regards!

E.

 

[minosi]

Well, I finally got back to the SP80 project after some "distractions" over the last couple of weeks...

Some of you might recall the lower anti-vibe mount was broken off the oil tank (still visable here, though barely) so I decided to replace the tank with one from the "goodie box".

View attachment 278449

Piston, intake side:

View attachment 278450

Ex side:

View attachment 278451

Compression was good at 180, but with the tank off might as well look inside right?

 

[minosi]

So, pulled the piston...

Obviously, there is an issue...virtually everything you see in these pictures is rust.

The crankcase was dirty, but as soon as I popped the piston out rust dumped out..essentially every spec of anything you see on the piston is rust, not sawdust or carbon.

I religiously put penetrating oil into every cylinder (saw) that I buy before pulling it over...thus the oil/film on everything.

Needless to say, I am glad I went this far.

View attachment 278454

View attachment 278455

View attachment 278456


Obviously, the muffler was the culprit.

The outside looked good (and the whole thing is still serviceable) but it did flake off enough to become an issue.

All cleaned up....

View attachment 278461


Ready to go...right?

 

[Nickolas]

Pro Mac & Power Mac saws

Since I am fairly new to collecting these older McCulloch chainsaws how are these Pro Mac and Power Mac saws? I see the model 800-850 saws go for quite a bit of money though they are only 82cc or so. Why are they so expensive? And are these saws all metal or plastic combined? I see they weigh less than the 250, 440, 740 saws and similar models. Any other features that make them so expensive or sought after? I been watching them on ebay and they all seem to bring good money for the nice ones. You can get a Super 250 for a fraction of what one of these PM850 sell for around the same size motors so what is the major attraction to these? I have never seen a Pro Mac saw or Power Mac so I have no clue to why they are so popular. I was thinking of maybe getting one of these but it has to be metal. Don't want a plastic saw I just don't like how they feel/handle as I cut. I'll take a heavy metal saw any day over a plastic one.

Nick