Advertisement
8-70
GROUP
8-ENGINE
CRANKSHAFT (Continued)
THRUST BEARING JOURNAL LENGTH
200 and 250
1.275-1 .277
302,
351
1.124-1.126
MAIN BEARING JOURNAL THRUST FACE RUN-
OUT
All Engines
0.001
CONNECTING ROD JOURNAL DIAMETER
Standard
200 and 250
2.1232-2.1240
302, 351
2.3103-2.3111
CRANKSHAFT FREE END PLAY
All Engines
0.004-0.010-Wear Limit 0.012
ASSEMBLED FLYWHEEL CLUTCH FACE
MAXIMUM RUNOUT
200 and 250
0.007
302 and 351
O.Q1 0
ASSEMBLED FLYWHEEL
O.D.
MAXIMUM
RUNOUT
Standard Transmission
All Engines
Automatic Transmission
All Engines
MAIN BEARINGS
BEARING TO CRANKSHAFT CLEARANCE
O.Q18
0.020
Desired
Allowable
200 and 250 0.0005-0.0015
0.0005-0.0022
302, 351
0.0001-0.0015
0.0008-0.0026
WALL THICKNESS
Standard
0.002
U.S.
200 and 250
0.0758-0.0761
0.0768-0.0771
302 and 351
0.0959-0.0962
0.0969-0.0972
CONNECTING ROD
PIN BORE DIAMETER
Standard
200 and 250
0.9107-0.9112
302 and 351
0.9104-0.9112
BEARING BORE DIAMETER-Standard
200-250
2.2390-2.2398
302-351
2.4361-2.4369
BEARING BORE MAXIMUM OUT OF ROUND
200 and 250
0.0003-0.0004
302 and 351
0.0004
BEARING BORE MAXIMUM TAPER
All Engines
0.0004
CONNECTING ROD LENGTH-Centre to Centre
200 6.274-6.271
302,351
250
5.882-5.879
5.7785-5.7815
CONNECTING ROD ASSEMBLY-
Assembled to Crankshaft
Side Clearance
200 and 250
0.0035-0.01 05-
Wear Limit 0.014
CONNECTING ROD (Continued)
302 and 351
CONNECTING ROD*
0.01 0-0.020-
Wear Limit 0.023
Twist Maximum Total Difference
200 and 250
0.008
302 and 351
0.012
Bend Maximum Total Difference
All Engines
0.004
*Piston pin bore and
crankshaft
bearing bore must
be parallel and in the same vertical plane within
the specified total difference at ends of
8-i
nch
long bar measured
4-i
nches on each side of rod
.
CONNECTING ROD BEARINGS
BEARING TO CRANKSHAFT CLEARANCE
Desired
Allowable
200 and 250 0.0008-0.0015
0.0008-0.0024
302 and 351 0.001-0.0015
0.0008-0.0026
BEARING WALL THICKNESS
AND UNDERSIZE JOURNAL
Standard
200 and 250 0.0571-0.0574
302}
351
0.0620-0.0625
PISTON
FOR STANDARD
0.002
U.S.
0.0583-
0.0588
0.0630-0.0635
PISTON DIAMETER-At Right Angle to Pin
Centreline
Colour Coded Red
200 and 250
3.6778-3.6784
302
}
3.9982-3.9988
351
Colour Coded Blue
200 and 250
3.6790-3.6796
302}
351
3.9994-4.0000
PISTON TO CYLINDER BORE CLEARANCE
200 and 250
0.0010-0.0018
302 }
0.0014-0.0022
351
PISTON PIN BORE DIAMETER
All Engines
RING GROOVE WIDTH
Upper Compression Ring
All Engines
Lower Compression Ring
All Engines
Oil Ring
All Engines
PISTON PIN
PISTON PIN DIAMETER
Standard
All Engines
PISTON PIN LENGTH
0.9122-0.9125
0.080-
0.081
0.080-
0.081
0.1880-
0.1890
0.9119-0.9124
All Engines
3.010-3.040
PISTON PIN TO PISTON CLEARANCE-Loose
200 and 250
0.0003-0.0005
Advertisement
