FACTORY SPECIFICATIONS FOR THE HILLMAN HUNTER

 

ENGINE - STANDARD MOTOR HIGH PERFORMANCE MOTOR (GT-660)
BORE & STROKE (Ins) 3.21 x 3.25 3.21 x 3.25
B.H.P (Gross) 73 @ 4900 94 @ 5200
MAX. TORQUE (lbs.-ft) 99 @ 2700 107 @4000
COMPRESSION RATIO 8.4 : 1 9.2 : 1
FIRING ORDER 1, 3, 4, 2 1, 3, 4, 2
VALVE CLEARANCES (Hot)    
         INLET (Ins.) .012 .012
         EXHAUST (Ins.) .014 .014
VALVE TIMING    
         INLET OPENS 19 DEG. B.T.D.C 29 DEG B.T.D.C
         INLET CLOSES 57 DEG. A.B.D.C 63 DEG. A.B.D.C
         EXHAUST OPENS 61 DEG. B.B.D.C 69 DEG. B.B.D.C
         EXHAUST CLOSES 15 DEG. A.T.D.C 23 DEG. A.T.D.C
OIL PRESSURE (Hot)    
         AT 50 M.P.H 40 p.s.i. 40 p.s.i.
OIL CAPACITY (including filter) 7 1/2 pints 7 1/2 pints
     
IGNITION SYSTEM -    
TYPE 12 Volt Coil and Distributor 12 Volt Coil and Distributor
TIMING (Static) 6 Deg. - 10 Deg. B.T.D.C 6 Deg. - 10 Deg. B.T.D.C
SPARKING PLUGS 14 mm. Champion N9Y 14 mm. Champion N9Y
SPARK PLUG GAP .025" .025"
POINTS  GAP .015" .015"

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 These Pages compiled by John F. McRae -GOODWOOD- South Australia July 2005