SECTION 1
GENERAL INFORMATION
TOLERANCES, FITTED PARTS
(Cont'd)
KT17 KT19
KT21
Tappet Clearance
in
Guide-
Max
.
.....................
.0005/.0024" (.013/.060 mm)
.0005/.0024" (.013/.060 mm) .0005/.0024" (.013/.060 mm)
Valve Guide Interference
Fit
in
Cylinder
.............
.005/.002" (.013/.051 mm)
.005/.002" (.013/.051
mm)
.005/.002" (.013/.051 mm)
Valve Guide Ream
Diameter
.........
.........
.312/.313" (7.925/7.950 mm)
.312/.313" (7.925/7.950 mm) .312/.313" (7.925/7.950 mm)
Pump Shaft to Crankcase
Running
..................
.001
0/.0025" (.025/.063 mm)
.0010/.0025"
(.025/063
mm)
.0010/.0025" (.025/.063
mm)
Pump Drive Gear End Play
.....
.010/.029" (.254/.736 mm)
.01
0/.029" (.254/.736 mm)
.010/.029" (.254/.736
mm)
WEAR TOLERANCES
Cylinder
Bore-
New
Diameter
.............
3.125" (79.375 mm)
3.125" (79.375 mm) 3.312" (84.125 mm)
Cylinder
Bore-
Max. Wear Diameter
........
3.128" (79.45
mm)
3.128" (79.45 mm)
3.315" (84.201
mm)
Cylinder Bore -
Max. Taper
................
.0015'' (.038 mm) .0015'' (.038 mm) .0015" (.038 mm)
Cylinder
Bore-
Max. Out
of
Round
.........
.002" (.05 mm)
.002"
(.05mm)
.002"
(.05mm)
Crankshaft Crankpin
New
Diameter
...............
1.3733 (34.882/34.895
mm)
1.3733/ (34.882/34.895
mm)
1.4993/ (38.082/38.095
mm)
1.3738" 1.3738" 1.4998"
Series
II
......
............
1.3733/
(34.882/34.895
mm)
1.4993/
(38.082/38.095
mm)
1.3738"
1.4998"
Crankshaft
Crankpin-
Max. Out
of
Round
.........
.0005"
(.013
mm)
.0005" (.013
mm)
.0005"
(.013
mm)
Crankshaft
Crankpin-
Max.
Taper
..
..............
.001" (.025 mm) .001" (.025
mm)
.001" (.025 mm)
Crankshaft Main Bearing
New
Diameter
.............
1.7412/ (44.226/44.252 mm) 1.7412/ 44.226/44.252
mm)
1.7412/ (44.226/44.252
mm)
1.7422" 1.7422" 1.7422"
Crankshaft Main
Bearing-
Min. Diameter
.............
1.7407"
(44.22 mm) 1.7407" (44.22
mm)
1.7407" (44.22
mm)
Connecting
Rod
Crankpin
Bore -
New
Diameter
...............
1.3750/
(34.925/34.943
mm)
1.3750/ (34.925/34.943
mm)
1.5010/ (38.125/38.143
mm)
1.3757"
1.3757" 1.5017"
Series
II
............
......
1.3750/ (34.925/34.943
mm)
1.5010/
(38.125/38.143
mm)
1.3757"
1.5017"
Connecting Rod Crankpin
Bore-
Max. Diameter
...............
1.3765 (34.963
mm)
1.3765 (34.963
mm)
1.5025 (38.164
mm)
Series
II
..........
........
1.3765 (34.963 mm) 1.5025 (38.164 mm)
Connecting Rod Wristpin
Bore-
New Diameter
....
....
.62565"
(15.891
mm)
.7511" (19.078 mm) .85975" (21.837 mm)
Piston Thrust
Face-
Max. Wear Dia. *
............
3.1165" (79.159 mm) 3.1165" (79.159 mm) 3.303" (83.896
mm)
*Measured just below oil ring at right angles
to
pin.
8