McCulloch Mac 1-42 Specifications

McCulloch Mac 1-42 Specifications

The McCulloch Mac 1-42 chainsaw, manufactured by McCulloch Motors Corp. in Los Angeles, California, U.S.A., was a powerful and reliable tool introduced in March 1961. The saw featured a die-cast magnesium/aluminum alloy construction, a rigid handlebar system, and a direct drive type. A centrifugal clutch made it easy and comfortable to use, while its manual oil pump ensured that the saw was always lubricated and ready for action.

Sadly, the McCulloch Mac 1-42’s reign was short-lived, and it was discontinued in April 1962. However, during its brief production run, the McCulloch Mac 1-42 proved to be a top-of-the-line chainsaw that was well-suited for both professional and personal use. Even today, it is remembered fondly by many as a powerful and reliable tool that could tackle the toughest cutting jobs with ease.


SpecificationMetric Value
ManufacturerMcCulloch Motors Corp. Los Angeles, California, U.S.A.
Series or Assembly NumberN/a
Year IntroducedMarch 1961
Year DiscontinuedApril 1962
Engine Displacement4.9 cu. in. (80cc)
Cylinder Bore54mm (2.125 in.)
Piston Stroke35mm (1.375 in.)
Cylinder TypeAluminum with cast iron sleeve
Intake MethodReed valves with third port induction system
Manufacturer Advertised H.P.N/A
Weight18.5 Lbs. powerhead only
Operator ConfigurationOne Man operation
Handlebar SystemRigid
Chain BrakeN/A
Drive TypeDirect
ConstructionDie cast magnesium/aluminum alloy
Magneto TypeMcCulloch
CarburetorTillotson HL series
Major Repair KitN/A
Minor Repair KitDG-5HL
Air Filter SystemFlocked wire screen
Starter TypeMcCulloch automatic rewind
Oil PumpManual
Maximum Engine RPMN/A
Ignition TimingFixed
Breaker Point Setting0.018 in. (0.45mm) located under flywheel
Flywheel/Coil Air GapN/A
Spark Plug TypeChampion J8J
Spark Plug Gap0.025 in. (0.63mm)
Crankshaft Main BearingsBall
Fuel Tank CapacityN/A
Fuel Oil Ratio20:1
Recommended Fuel OctaneRegular
Mix Oil SpecificationMcCulloch two-cycle chain saw mix
Chain Pitch.404 in.
Chain TypeMcCulloch
Bar Mount PatternN/A
Shortest Guide Bar Supplied16 in. (40cm)
Longest Guide Bar Supplied24 in. (61cm)
Colour SchemeMcCulloch Yellow enamel
Paint CodesN/A
Illustrated Parts ListYES
Service ManualYES
McCulloch Mac 1-42 Chainsaw Specs


  • Engine displacement: 4.9 cubic inches (80cc)
  • Cylinder type: Aluminum with cast iron sleeve
  • Intake method: Reed valves with third port induction system
  • Weight: 18.5 pounds (powerhead only)
  • Operator configuration: One man operation
  • Handlebar system: Rigid
  • Chain brake: None
  • Clutch: Centrifugal
  • Drive type: Direct
  • Construction: Die-cast magnesium/aluminum alloy
  • Magneto type: McCulloch
  • Carburetor: Tillotson HL series
  • Air filter system: Flocked wire screen
  • Starter type: McCulloch automatic rewind
  • Oil pump: Manual
  • Shortest guide bar supplied: 16 inches (40cm)
  • Longest guide bar supplied: 24 inches (61cm)
  • Color scheme: McCulloch Yellow enamel


In short, the McCulloch Mac 1-42 was a chainsaw that was produced for a short period of time from March 1961 to April 1962. It was known for its powerful performance, one-man operation, and comfortable design. Although it was discontinued after just one year of production, it is still remembered fondly today as a top-of-the-line tool that could handle even the toughest cutting jobs.

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