Mobilco Matchless .................. AH 58

TECUMSEH; POWER PRODUCTS

Manfacturers of both  Two-Cycle and Four-Cycle small engines.

Power Products  AH Engines were used  BY MANY CHAIN SAW MANUFACTURERS IN THE 1950'S AND 1960'S

Engine models produced for chain saw use were AH-44, AH-47, AH-58, AH-82

Power Products: AH-58

YEAR INTRODUCED:  1962
 
ENGINE DISPLACEMENT:  5.8 cu. in. (95cc)
NUMBER OF CYLINDERS:  1

CYLINDER BORE:  2.09 in. (53mm)
PISTON STROKE:  1.680 in. (42.6mm)
CYLINDER TYPE:  Aluminum with cast iron sleeve
INTAKE METHOD:  Reed valve
MANUFACTURER ADVERTISED H.P.:  6
WEIGHT :  19 lbs. powerhead only
OPERATOR CONFIGURATION:  One Man operation
HANDLEBAR SYSTEM:  Rigid 
CLUTCH:  Centrifugal
DRIVE TYPE:  Direct
CONSTRUCTION:  Sand cast aluminum
MAGNETO TYPE:  Phelon
CARBURETOR:  Tillotson HL series
MAJOR REPAIR KIT:  nla
MINOR REPAIR KIT:  DG-1HL
STARTER TYPE:  Fairbanks Morse automatic rewind
OPERATING RPM:  4,500
IGNITION TIMING:  0.090 to 0.110 in. (2.2 to 2.7 mm) before TDC
BREAKER POINT SETTING:  0.020 in. (0.51mm)
FLYWHEEL/COIL AIR GAP:  fixed
SPARK PLUG TYPE:  Champion J8J, Autolite A7X, AC M45
SPARK PLUG GAP:  0.030 in. (0.76mm)
CRANKSHAFT MAIN BEARINGS:  Ball
FUEL TANK CAPACITY:  
FUEL OIL RATIO:  20:1
RECOMMENDED FUEL OCTANE:  Regular
MIX OIL SPECIFICATION:  Two-stroke mix oil
Another variation of this model featured a plastic fuel tank
1969 ad