Mcculloch saw identification help

[EKreider89]

I’ll post pictures, can someone help me ID this saw? Is there an easy way to ID old Mcculloch’s?

Thanks!

 

[Maintenance supervisor]

Early model 10 series with the bullfrog carb? Looks like it has the funky decomp in the start switch.
@heimannm would know more. But measuring the bore with an aerosol can straw is how I determine an unmarked saw.
Insert straw through the intake or exhaust and rotate the flywheel to make an impression on the straw then reverse rotate flywheel and measure straw.

 

[Woodslasher]

Looks a lot like a 5-10 I had, or maybe a 3-10?

 

[HarleyT]

Ask these guys..

 

[Rocker59]

The carb is a Type 5 (double needle, no governor). Pretty good carb if you can get the primer to work (or at least seal). There is no insulator under the carb and the short tank. It has a DSP valve (can see the spring under the bracket). The Red decomp button was usually used on the electric starts, but there are no holes in the handle for mouting the switch. Also, the fan housing appears to be normal width, not the wide one the electrics used. The aluminum handle brace (ridge down the middle) makes me guess a 3-10 or a late 2-10A (same saw).
As Maintenance Supervisor pointed out, measuring the bore will tell you if it is a 54cc(1.75) or 70cc(2.00). Many saws have been "Rebuilt" over the years so you wind up with Bitza saws. A picture of the saw with the fan housing off and one of the underside of the saw would help also.

 

[EKreider89]

The carb is a Type 5 (double needle, no governor). Pretty good carb if you can get the primer to work (or at least seal). There is no insulator under the carb and the short tank. It has a DSP valve (can see the spring under the bracket). The Red decomp button was usually used on the electric starts, but there are no holes in the handle for mouting the switch. Also, the fan housing appears to be normal width, not the wide one the electrics used. The aluminum handle brace (ridge down the middle) makes me guess a 3-10 or a late 2-10A (same saw).
As Maintenance Supervisor pointed out, measuring the bore will tell you if it is a 54cc(1.75) or 70cc(2.00). Many saws have been "Rebuilt" over the years so you wind up with Bitza saws. A picture of the saw with the fan housing off and one of the underside of the saw would help also.

Ok, I’ll take more pictures this evening! Thanks!

 

[EKreider89]

Ok, I’ll take more pictures this evening! Thanks!

Straw test shows 1.75in. I’ll attach more pictures.

 

[heimannm]

3-10 DSP



Mark

 

[EKreider89]

3-10 DSP

View attachment 997429

Mark

What does the dsp stand for?

 

[heimannm]

De Stroking Port - that was McCulloch's identification for that type of compression release. They used a similar principle on several of the 700 and 800 models as well including the mighty 797.

This one is a 795



Mark

 

[EKreider89]

Are these sought after? Common or rare?

 

[heimannm]

Not really anything special. A 10-10 model is more practical since the carburetor is more convenient to service.

Mark

 

[Morning wud]

does anyone know what model this McCulloch chainsaw is?

 

[Woodslasher]

Looks like a 35 to me.

 

[heimannm]

The small air filter identifies the saw as a Model 33. You will find the serial number stamped in the vicinity of the fuel cap, remove the cap to be able to see it clearly. This particular saw is a 33B.



Mark

 

[heimannm]

PM850 got a little exercise today.







Mark