McCulloch Chain Saws

[heimannm]

There is very little difference between the external block design of the700/800 Series saws and the later CP/SP 105 and 125 models. You can make just about any large frame saw into a gear drive by placing the gearcase on the side with the appropriate attaching hardware.

The biggest difference is removing the oil tank from the bottom of the crankcase and finding a suitable cover and stuffer. If memory serves me Leeha had to modifiy the 800 Series stuffer a bit to fit it to the bottom of the 797 he used when he made his 797G.

I think if you search you may find a thread where CPR(?) put an SP125 block into an 800 Series frame and ended up with an SP125G. Maybe I dreamed that whole episode...

Mark

 

[heimannm]

Bill, after moving my brothers 99 around in my shop for a year all I can say is I'd like to meet the man that can use the 99 by himself. I'm not even sure I want to shake hands with him as my poor weak paw might come back to me a mass of crushed bone and flesh.

Mark

 

[cpr]

There is very little difference between the external block design of the700/800 Series saws and the later CP/SP 105 and 125 models. You can make just about any large frame saw into a gear drive by placing the gearcase on the side with the appropriate attaching hardware.

The biggest difference is removing the oil tank from the bottom of the crankcase and finding a suitable cover and stuffer. If memory serves me Leeha had to modifiy the 800 Series stuffer a bit to fit it to the bottom of the 797 he used when he made his 797G.

I think if you search you may find a thread where CPR(?) put an SP125 block into an 800 Series frame and ended up with an SP125G. Maybe I dreamed that whole episode...

Mark

Wish that was me...

Put a West Bend US 820 in. 137cc and not too much modding to fit it, I wouldn't think. McBob put one in an SP125.

 

[leeha]

Alright guys!

Here goes!

What is the largest one man Mac that can be constructed? (gear drive of coarse!)
I am still figuring out the whole whole Mac series and possible matches!
I am pretty much just getting even more lost!
Know I know why you guys are liking these yellow things.

I have come to a uneducated find so far:
890G chassis
101AA engine

Any thoughts!
Thanks guys

Go for it Teddy,
A 101AA is still 123cc's and
will be the same size as my 797G
that i did and am doing now.
The 101 motor will have more power.
If you follow my 2 threads on them you
will see it is pretty much striaght forward
with just modding the stuffer.
My second 797G should be done this week.

I can't remember who did the SP125 in the
800 series but never did see a video of it.


Lee

 

[Brian13]

I have been reading and dreaming about a Kart engine swap myself. For the same displacement, what is the differance, porting? And what does that work out to, more rpms, more torque, or both?

 

[GASoline71]

Finally!!! this thread is back to the meat and potatoes of the McCulloch saws!

Gary

 

[RandyMac]

Finally!!! this thread is back to the meat and potatoes of the McCulloch saws!

Gary

And big inch ones at that.

A 797 powered 660 would be fun.

 

[GASoline71]

Yes it would!

Gary

 

[heimannm]

Somehow you would have to make that a 797L since the 660 clutch/gearcase/cover do not have provision for a starter.

Maybe you can just take the flywheel cover and starter from a 795L or chop saw and fit it to the 797.

Mark

 

[PLMCRZY]

Finally!!! this thread is back to the meat and potatoes of the McCulloch saws!

Gary

Sorry to interrupt on yalls parade

 

[leeha]

And big inch ones at that.

A 797 powered 660 would be fun.

Interesting Randy.
Ya gonna do it?
You might be able to fit a SP125
fan housing and starter along with
the flywheel to make it a lefty.


Lee

 

[RandyMac]

I think that the stuffer would be the biggest part of the conversion, oh, and finding fuel tank, gearbox....hmmm maybe just putting 660 stuff on a Super 550 would be easier.

 

[RandyMac]

While we are on the subject, old pics of my 1-80.

 

[GrizzlyAdams86]

What is the proper gap for the coil/flywheel on a 250? Thanks in advance.

 

[RandyMac]

What is the proper gap for the coil/flywheel on a 250? Thanks in advance.

business card

 

[a. palmer jr.]

business card

They'll all run on .009 to .012

 

[GrizzlyAdams86]

business card

They'll all run on .009 to .012

Thanks. I'll try it out tomorrow.

 

[jra1100]

Mark: As I recall, the day that your brother left that big ol hoss in your shop I was surprised at how much lighter it was than it looked. It would be sort of fun to see if you could use it as a 1 man. JR

 

[little possum]

? for the Mac Gurus. I messed with the black top 250 today after fixing my McHomeloch 1050 And I was wondering what kind of carb the 250 has on it. It has a primer, instead of a choke. Only IDing factor are a couple numbers up top, and I have never seen one like it. Looks like the bottom is kinda squared.
So what is it?

 

[Brian13]

Could it be a Tilloston HL......63 maybe?