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Model: 12 CHAIN SAW

MANUFACTURED BY:
MALL TOOL COMPANY
CHICAGO, ILLINOIS, U.S.A.
CRETE, ILLINOIS, U.S.A.
TORONTO, ONTARIO, CANADA
GUELPH, ONTARIO, CANADA
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1949
YEAR DISCONTINUED:
1950
ENGINE DISPLACEMENT:
4.1 cu. in.
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
1-7/8 in., 1.875 in.
PISTON STROKE:
1-1/2 in. 1.500 in.
PISTON RING THICKNESS:
CYLINDER TYPE:
Chrome Plated Aluminum
INTAKE METHOD:
Reed Valve
MANUFACTURER ADVERTISED H.P.:
Not advertised
WEIGHT:
OPERATOR CONFIGURATION:
One Man
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Mall Centrifugal
DRIVE TYPE:
Bevel Gear Transmission
CONSTRUCTION:
Sand cast magnesium
MAGNETO TYPE:
Phelon
CARBURETOR:
Tillotson float type
MAJOR REPAIR KIT:
nla
MINOR REPAIR KIT:
nla
AIR FILTER SYSTEM:
Skinner ribbon element
STARTER TYPE:
Mall Automatic Rewind
OIL PUMP:
none
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
30 degrees before TDC, (.140 in.)
BREAKER POINT SETTING:
.020 in. (0. 51 mm)
FLYWHEEL/COIL AIR GAP:
Position is fixed
SPARK PLUG TYPE:
Champion J6J
SPARK PLUG GAP:
.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
1 U.S. quart (32 fl. oz.)
FUEL OIL RATIO:
3/4 pint to 1 U.S. gallon = 12:1
RECOMMENDED FUEL OCTANE:
72 to 85
MIX OIL SPECIFICATION:
SAE 30 non detergent
CHAIN PITCH:
9/16 in., .5625 in. pitch
CHAIN TYPE:
Mall Cutter Raker
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
18 in.
LONGEST GUIDE BAR SUPPLIED:
24 in.
COLOUR SCHEME:
MALL Red enamel
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


Saw in SON Ranch Logging Museum collection, photographed by L. Trudel

 

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