DIMENSIONS
AND
CLEARANCES
RDJWRDJEA
All
clearances given at room temperature
of
70°F (21°C)
.
All dimensions in inches (millimetres in parentheses) unless otherwise specified .
d
.
CAMSHAFT
Bearing Journal Diameter. Front
.......................................
2.500-2.505 (63.500-63.627)
Bearing Journal Diameter. Rear
..................................
1.1875-1.1880 (30.1625-30.1752)
Bearing Clearance Limit
...........................................
0.0015-0.0030 (0.0381-0.0762)
End Play
.............................................................
0.007-0.039 (0.1778-0.9906)
Cam Tappet Diameter
.............................................
0.875-0.873 (22.161 5-22.1742)
Cam Tappet Hole Diameter
......................................
0.8755-0.8765 (22.2377-22.2631)
Large Bore Diameter
.............................................
2.1871-2.1876 (55.5523-55.5650)
Small Bore Diameter
.................................................
1.044-1.045 (26.51 76-26.543)
(Center-to-Center)
.............................................
5.998-6.002 (152.3492-152.4508)
Clearance, Bearing to Crankshaft
......................................
0.001-0.003 (0.0254-0.0762)
Bore Honed Diameter
..............................................
3.4995-3.5005 (88.8873-88.91 27)
Maximum Allowable Taper
..............................................................
0.005
(0.127)
Maximum Allowable Out-Of-Round
......................................................
0.001 (0.025)
Main Bearing Journal Diameter
.....................................
2.2437-2.4450 (56.989-62.103)
Main Bearing Clearance
.............................................
0.0030-0.0043 (0.076-0.109)
Connecting Rod Journal Diameter
................................
2.0597-2.0605 (52.3240-52.3367)-
Rod
Bearing Clearance
............................................
0.0019-0.0038 (0.0482-0.0965)
End Play
...............................................................
0.010-0.015 (0.254-0.381)
CONNECTING RODS
Large Bearing Bore to Small Bearing Bore
CYLINDER
CRANKSHAFT
PISTONS AND RINGS
Clearance
in
Cylinder
Measure 90" to pin. just below oil ring
...............................
0.0055-0.0075 (0.1397-0.1905)
Ring Groove Width
TOP
..........................................................
0.0970-0.0980 (2.464-2.489)
NO
2
.........................................................
0.0965-0.0975 (2.451-2.477)
NO
3
.........................................................
0.0965-0.0975 (2.451 -2.477)
NO
4
.........................................................
0.1880-0.1897 (4.775-4.81 8)
Wid th-All Rings
..................................................
0.0925-0.0935 (2.3495-2.3749)
Clearance
in
Piston
................................................................
Thumb Push Fit
Connecting Rod Bushing Clearance
................................
0.0002-0.0007 (0.0050-0.0178)
..............................................................
Ring Gap 0.010-0.020 (0.254-0.508)
PISTON PIN
STARTING
MOTOR
(Prestolite)
........................................................................
Rotation Counterclockwise
Pinion Clearance to Pinion Stop (Solenoid Plunger Bottomed)
..............
0.070-0.120 (1.78-3.05)
Pinion Rest Position-Distance from Pinion Housing
Mounting Face to Outer Edge
of
Pinion
...........................
1-9/32
-
1-15/64 (32.54-37.31)
Armature End Play
......................................................
0.005-0.030 (0.030-0.760)
Stem Diameter
....................................................
0.3405-0.3415 (8.6487-8.6741)
Guide Clearance
..................................................
0.0015-0.0030 (0.0381-0.0762)
Valve Face
........................................................
:
............................
42"
VALVE-INTAKE
...........................................................................
Clearance 0.017 (0.4318)
3
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