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Engine Specifications

GENERAL SPECIFICATIONS

Engine cu. ins. cc Carburetor HP at RPM Torque (Ft. Lbs. at RPM) Compr. Ratio Rotor Housing Width
in. mm
Rotary 40 654 4-Bbl. ..... ..... 9.2-1 3.150 80
ROTOR HOUSING, INTERMEDIATE HOUSING & ROTOR

Engine ROTOR HOUSING INTERMEDIATE HOUSING ROTOR
Width In. (mm) Distortion Limit In. (mm) Width In. (mm) Distortion Limit In. (mm) Inside Diameter In. (mm) Housing-to-Rotor Clearance In. mm) Land Protrusion In. (mm)
Rotary 3.150 (80) .0024 (.06) ..... .0024 (.06) ..... 0039-.0083 (.10-.21) .....
OIL SEAL

Height In. (mm) Seal Lip Contact Width
Standard In. (mm) Limit In. (mm)
.220
(5.6)
.008
(.2)
.031
(.8)
SEAL SPRINGS

Engine Spring Free Height In. (mm)
Rotary Apex .185 (4.7)
Side .075 (1.9)
Corner .098 (2.5)
Inner Oil .110 (2.8)
Outer Oil .102 (2.6)
(1) APEX SEAL

Engine Length Seal Width Height Seal-to-Housing Seal-to-Rotor
Clearance Wear Limit Groove Clearance Wear Limit
Rotary 3.1438
(79.85)
.118
(3)
.335
(8.5)
.0051-.0067
(.13-.17)
.0012
(.30)
.0020-.0035
(.051-.089)
.006
(.15)
(1) - In. (mm)
SIDE SEAL

Engine Thickness In. (mm) Width In. (mm) Seal-to-Groove Side Seal-to-Corner Seal
Clearance In. (mm) Limit In. (mm) Clearance In. (mm) Limit In. (mm)
All .039
(1)
.138
(3.5)
.0012-.0028
(.04-.07)
.004
(.10)
.0020-.0059
(.05-.15)
.016
(.40)
CORNER SEAL

Engine Diameter In. (mm) Width In. (mm) Seal-to-Groove Side Seal-to-Corner Seal
Clearance In. (mm) Limit In. (mm) Clearance In. (mm) Limit In. (mm)
All .433
(11)
.276
(7)
.0008-.0019
(.020-.048)
.0031
(.08)
.0020-.0059
(.05-.15)
.016
(.40)
ECCENTRIC SHAFT MAIN & ROTOR BEARINGS

Engine MAIN BEARINGS ROTOR BEARINGS
Journal Diameter In. (mm) Clearance In. (mm) Eccentric Shaft Endplay In. (mm) Journal Diameter In. (mm) Clearance In. (mm)
All 1.6929
(43)
.0016-.0028
(.04-.07)
.0016-.0028
(.04-.07)
2.9134
(74)
.0016-.0031
(.04-.08)
PORT TIMING

Engine INTAKE EXHAUST
Open (ATDC) Close (ABDC) Open (BBDC) Close (ATDC)
All 32° 40° 75° 38°
TIGHTENING SPECIFICATIONS

Application Ft. Lbs. (mkg)
Oil Pump Sprocket 22-25 (3.0-3.5)
Oil Pan 5-7 (0.7-1.0)
Eccentric Shaft Pulley 72-87 (10-12)
Intake Manifold 12-17 (1.6-2.3)
Thermal Reactor 22-40 (3.0-5.5)
Flywheel Lock Nut 289-362 (40-50)
Crankshaft Pulley 72-87 (10-12)
Water Pump 13-20 (1.8-2.7)
Clutch Cover 13-20 (1.8-2.7)