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Model: 458H

MANUFACTURED BY:
COBRA CHAIN SAWS
CRYSTAL LAKE, ILLINOIS, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1964
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
5.8 cu. in. (95 ccm)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.09 in. (53 mm)
PISTON STROKE:
1.68 in. (42.6 mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
6.5
WEIGHT:
17 lbs. (7.7 kg) powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Phelon
CARBURETOR:
Tilltoson
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Skinner ribbon element
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
4,500
IDLE RPM:
IGNITION TIMING:
0.90 to 0.110 in. (2.2 to 2.7 mm) before TDC
BREAKER POINT SETTING:
0.020 in. (0.51 mm)
FLYWHEEL/COIL AIR GAP:
Position is fixed
SPARK PLUG TYPE:
Champion J8J, Autolite A7X, AC M45
SPARK PLUG GAP:
0.030 in. (0.76 mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO:
16:1
RECOMMENDED FUEL OCTANE:
Regular grade 72 to 83
MIX OIL SPECIFICATION:
Two cycle chain saw mix oil
CHAIN PITCH:
.404 in.
CHAIN TYPE:
Oregon 50C3
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
16 in. (40 cm)
LONGEST GUIDE BAR SUPPLIED:
25 in. (63.5 cm)
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Used Power Products AH-58 engine
Sold for $179.50 with 16 inch bar & chain in 1964



 

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