Tecumseh VLV - Chapter 14 ENGINE SPECIFICATIONS; Displacement; Bore; Stroke

40
Chapter 14
ENGINE SPECIFICATIONS
VLV40 VLV50, 55, 60, 65
Displacement 11.19 183.4 cc 12.6 207 cc
Stroke 2.047 51.993 mm 2.047 51.993 mm
Bore 2.6390 67.031 mm 2.796 71.018 mm
2.6380 2.795 70.993 mm
Air Gap Dimension Ignition .0125 .30 mm .0125 .30 mm
Spark plug gap .030 .70 mm .030 .70 mm
Valve Clearance Intake and Exhaust .004 .101 mm .004 .101 mm
.008 .203 mm .008 .203 mm
Valve Seat Angle 46
o
46
o
Valve Seat Width .047 1.2 mm .047 1.2mm
Valve Guide Oversize Dia. .2807 71.297 mm .2807 71.297 mm
.2817 71.551 mm .2817 71.551 mm
Crankshaft End Play .005 .127 mm .005 .127 mm
.027 .685 mm .027 .685 mm
Crankpin Journal Dia. 1.0235 25.996 mm 1.0235 25.996 mm
1.0230 25.984 mm 1.0230 25.984 mm
Crankshaft Magneto Main Brg. Dia 1.0242 26.014 mm 1.0242 26.014 mm
1.0237 26.001 mm 1.0237 26.001 mm
Crankshaft P.T.O. Main Brg. Dia 1.0242 26.014 mm 1.0242 26.014 mm
1.0237 26.001 mm 1.0237 26.001 mm
Camshaft Bearing Dia. .4980 12.649 mm .4980 12.649 mm
.4975 12.636 mm .4975 12.636 mm
Conn. Rod Dia. Crank Brg. 1.0246 26.024 mm 1.0246 26.024 mm
1.0240 26.009 mm 1.0240 26.009 mm
Piston Diameter 2.6340 66.903 mm 2.6340 66.903 mm
2.6330 66.878 mm 2.6330 66.878 mm
Ring Groove Side Clearance 1st & 2nd Comp. .002 .050 mm .002 .050 mm
.005 .127 mm .005 .127 mm
Side Clearance (Bot.) Oil .0005 .012 mm .0005 .012 mm
.0035 .088 mm .0035 .088 mm
Piston Skirt Clearance measured 90
o
from pin .004 .101 mm .004 .101 mm
at the bottom of the skirt .006 .152 mm .006 .152 mm
Ring End Gap .007 .177 mm .007 .177 mm
.020 .508 mm .020 .508 mm
Cylinder Main Brg. Dia 1.0262 26.065 mm 1.0262 26.065 mm
1.0257 26.052 mm 1.0257 26.052 mm
Cylinder Cover/Flange Main Bearing Diameter 1.0262 26.065 mm 1.0262 26.065 mm
1.0257 26.052 mm 1.0257 26.052 mm
Not For Resale
www.SmallEngineDiscount.com