McCulloch Chain Saws

[vinnywv]

Hello, i was just thru ashland last week. Small world. Went fishing out of port clinton. Wish i had one for you.

 

[Rallyeguy]

We have tested and are making a new reproduction Top Tank Air Cleaner Grill for Large frame McCulloch Saws. It's made with flexible plastic for superior durability to original parts and 3D reproduction parts. Pre-order at the following link https://www.oldsawshop.com/McCulloch-Top-Tank-Air-Cleaner-Cover-Grill-p661388112

Reproduction parts are now in stock and ready for shipment. All pre-orders have been shipped.

https://www.oldsawshop.com/McCulloch-Top-Tank-Air-Cleaner-Cover-Grill-p661388112

 

[knightmax]

Couple pretty interesting McCulloch Kits I found in MacHalla...

 

[heimannm]

 

[Little Jerrry]

Gents

I have a McCulloch 7-10A that I completely restored a number of years ago (of which I got a lot of help from this thread) which I had to put an ignition chip in. It has the Tillotson carb with the high jet adjustment only. The issue I have with this saw is that it runs very nicely but will only rev to 6000rpm which seemed low. Turning out the H jet (more fuel) bumped the RPM up maybe 500rpm.

I recently picked up another 7-10A with original points and has a SDC 44 carb with adjustable L and H jets. It runs very well and a quick rev was showing in the 9000 rpm.

Any ideas on what may limit the revs on a chainsaw like this. It doesn't seem to be starving for fuel as it revs crisply to the 6000 rpm and doesn't bog down but the H jet adjustment did increase the RPM a little. It has a NOS OEM exhaust so i doubt that would be clogged up in any way. It has new rings but surely tight rings wouldnt impact it like this.

I know its hard to diagnose anything over the internet but just curious if anyone else has had similar issues?

Regards

Adam

 

[heimannm]

It could be that you chip does not have the necessary advance for the 7-10. Static timing on almost all of the McCulloch saws was 26° BTDC.

If would be easy enough to swap the carburetor between the two but I don't think you will find a big difference. Venturi size and throttle bore should be the same on those two carburetors.

Mark

 

[Little Jerrry]

Thanks Mark

I'll do some searching but is there a specific chip that people use with success on these old McCullochs?

 

[heimannm]

I only remember using one chip, I believe it was a NOVA II but I cannot confirm that. That was on a 10-10 McCulloch and it certainly would exceed 6,000 RPM...

Mark

 

[bob kern]

Update on the 610. Received a diaphragm from an awesome fella on here and ........now to find a pattern for a bucking spike, or just get creative. It continues to start well and idle/ rev nicely.

 

[olgreenmachine3400]

Hey Guys. Anyone interested in these two old Gems?? Mac 1-40 & 1-51. Both are complete bar & chains. Both have compression & Spark Was told they both ran to cut downed trees a little over a yr ago. Dont know if thats true or not. $350 for pair Pus shipping or local pickup in northern MN 56634.
Would for 80's Poulans. Would like a Big case 4200 4400 4900 5200 or 5400
I have several 3400's a couple hopped up quite a bit 3800 and a 4000 too

 

[heimannm]

Bob - the 600 Series use the same spike as the PM 10 Series saws. In fact the 600 Series saws are set up so that you can outfit them with dual spikes if you wish. McCulloch PN 214208 is a kit with two spikes and hardware. I have NOS kits and used spikes if you can't find one elsewhere.



The individual packed spikes for the 10 Series are PN 91967.



There are good reproductions out there as well but be careful, some were made with the 4-1/8" hole spacing to fit the older 10 Series covers.



Mark

 

[bob kern]

Bob - the 600 Series use the same spike as the PM 10 Series saws. In fact the 600 Series saws are set up so that you can outfit them with dual spikes if you wish. McCulloch PN 214208 is a kit with two spikes and hardware. I have NOS kits and used spikes if you can't find one elsewhere.

View attachment 1182363

The individual packed spikes for the 10 Series are PN 91967.

View attachment 1182366

There are good reproductions out there as well but be careful, some were made with the 4-1/8" hole spacing to fit the older 10 Series covers.

View attachment 1182367

Mark

If you have a set you want to sell, I'd be glad you do business with you.
Either way thanks for the info.

 

[heimannm]

PM sent

Mark

 

[bob kern]

This a 10-10 super someone ( Mark I think) found me a tank top for. It was overdue to have a tank ran through it. Ran ok but occasionally missed a little. I will try removing the kill wire first hoping I won't have to get under the flywheel.

 

[bob kern]

Input a tank through the 610 as well. It ran great but hate cutting without spikes so it will be on siesta for a bit til they get here. Very clean saw.

 

[Jethro 2t sniffer]

Hot rod 10-10 on the job today. Wish it auto oiled though

 

[Jethro 2t sniffer]

And another
Purrs like a cat getting into the cream

I do quite like the 57cc

 

[bob kern]

And another View attachment 1182507
Purrs like a cat getting into the cream

I do quite like the 57cc

Is that the lightweight? Love mine!

 

[heimannm]

You're missing a screw there J2t

 

[bob kern]

Eagle eye!