McCulloch Chain Saws

Wesspur
Rugged made
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Justing needs to richen up that saw a tad, tighten the chain a little bit.............and find MUCH bigger wood to cut. There's a reason why I don't take my 3/1 650 with me when I go cutting. I don't have enough bar (it wears a 31" HN with 1/2" chipper right now), or big enough wood (to cut) to make it worthwhile...:D
 
RandyMac said:
A good running 660 will pull 48" with 1/2" with no problems, 60" is possible, but you won't set any records.
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This 660 is a real nice runner, has the tilly carb, auto oilier, 3 to 1 gear box, and a .404 rim instead of sprocket, I think now that it is properly tuned it will flat cut with no hesitation, just waiting for the hardware to install the dawg so it can be leaned on.
 
On a stream clearance project back in '76, we came across a big Doug Fir log, well almost the entire tree, anyway, it was too much for the 48" bar that was standard on our 660s. The overhead won't let us use the new SP125s, so we "borrowed" a 60" RN Cannon, put a .404 sprocket and chain on, went sawing. The DF had been laying in the creek bed since the '64 Flood and was well seasoned, with silt, small rocks embedded. Took two days to buck it into firewood. I still hear a 660 singing in my ears.
 
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Ron, I am sure you are correct about the coils. Last night I rigged up my automotive style timing light with inductive pick up (hadn't been out of the box in 20 years I reckon) and tested both set ups using the cordless drill to keep the RPM the same.

First up, the standard ignition set up

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Then, the electronic coil, I believe this one came off a PM700 but from the outside they all look the same.

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I did notice that the two piece set up actually advances the timing as the engine speeds up, I could not detect the same happening with the modern one piece coil. The one piece definitely had a hotter spark, and a very precise cut off point when the speed was reduced.

I still need some parts for the brake, it appears the bits from the "long" cover do not all directly cross over so if anyone out there has a short clutch cover or two with some useable brake bits, please let me know.

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Mark
 
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The Entwistle Company

Not sure what it was intended for, but according to their web site The Entwistle Company:

"Corporate headquarters and our largest manufacturing facility is located in Hudson, MA operating under ISO-9001 certification. ENTWISTLE also has a manufacturing facility in Danville, VA. Total plant space is approximately 320,000 square feet. The Entwistle Company is a Veteran owned, Small Business.

Engineering
Offering the experience gained from years of custom manufacturing and diversified applications; our engineering skills have been honed to an innovative edge and are kept current with the latest machinery technologies.

Design andDevelopment
Our engineers and designers are well adept and qualified in a breadth of technologies. We focus on providing a high level of service and being totally responsive to customer requirements.

Entwistle maintains the flexibility to respond to new customers, markets and opportunities to yield a finished product, of modern design at a competitive price.

Manufacturing
We employ an experienced work force having a knack for new and innovative techniques, leading to quality on-time deliveries that meet or exceed our Customer’s expectations.

Our manufacturing team is well organized, versatile and experienced… ready to serve you. Let our modern facilities act as an auxiliary to your own plant."

I am guessing either an extended run 7-10 for the looooooooooooooooooooooooooooooooooooooong hard cut or an auxillary power plant for your boat or generator.

I am hoping to visit Dan this month, if he doesn't sell it before then I'll try to get some additional photos.

Mark
 
Thanks for the info, I figured somebody here would know. I'd looked up Entwistle but exactly what they produed was vague. Probably rare but not something I need.
 
fechtichmac said:
Hello!

Starts quick and easy like never before.Sure it doesnt look vitage.
This will work on Flatbacks too but it´s easyer to built in a chokeflap.
Click to expand...

Very creative, when you start mass producing the adapters to fit the flat back carburetors, put me down for at least 10 pieces. Might as well terminate with barb fittings on the adapter so we can mount the bulb externally to make it more accessible.

I started my 77 last night so another member could hear it (over the phone), I must have pumped the primer 40 times before I got enough fuel down in there to catch fire. I think before I go the route of the bulb on that one I will dig another primer out of the attice and give it a try.

Mark
 
heimannm said:
Very creative, when you start mass producing the adapters to fit the flat back carburetors, put me down for at least 10 pieces. Might as well terminate with barb fittings on the adapter so we can mount the bulb externally to make it more accessible.

I started my 77 last night so another member could hear it (over the phone), I must have pumped the primer 40 times before I got enough fuel down in there to catch fire. I think before I go the route of the bulb on that one I will dig another primer out of the attice and give it a try.

Mark
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With this,2-3 times bulb depressed the 4-30 starts FIRST Pull! And stays running
 
ozflea said:
Its off a bomb loading winch

winch2.jpg


winch1.jpg


The one shown is mine i'm sure it was used by the Royal Australian Navy on HMAS Melbourne an aircraft carrier

McBob
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Thanks. We have kicked this one around in the past and concluded that it was for some marine application. Now we know. BTW I have a surplus WWII naval bomb hoist but it is a hand crank; the boom looks to be the same as yours. Ron
 
I spent a little more time with the SP81E last night. When I tried to start it, there was fuel literally running out of the muffler so I decided I'd better go through the carburetor a bit more thoroughly this time since all I did previously was take it apart and make sure the gaskets and diaphragms were O.K.

Remove the carburetor, disassemble, run it through the USC a few cycles, grab what I thought was and SDC kit from bins and reassemble. Hey, the gaskets and diaphragms don't fit, must not have been and SDC kit afterall, try another, same problem, look again at the carburetor......Tillotson.

Grab an HS kit, put it together, make sure the thing holds pressure this time, now put it back together, and we have another runner!

If the weather will cooperate, I will take the latest batch of saws out Saturday for a little run time, maybe try the different 82cc saws all again. I know the SP80 has excellent compression and may give a better comparison against the fresh PM800's.

Mark
 
heimannm said:
we have another runner!

If the weather will cooperate, I will take the latest batch of saws out Saturday for a little run time, maybe try the different 82cc saws all again. I know the SP80 has excellent compression and may give a better comparison against the fresh PM800's.

Mark
Click to expand...
Congratsulations! Can't wait for the film results of the comparison!!:clap:
 
In order to do that we will have to enlist the help of one of the young guys who understand all the technology. I can take photos and post them, but video is beyond me. Not even sure there is a format that would understand my Sony assuming I could figure out how to shoot a video again.

Mark
 

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