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 ENGINE
SPECIFICATION LISTING (Con't)
Main Bearing:
Exhaust Valves:
Dia. of brg. bore in blk.
2.4365/2.4372
Stem diameter
.3377/.3385
Brg. shell thickness
.09290/.09315
Wear limits - min. dia.
.3357
Wear limits - min. thk.
.u924
Seat angle
45
Dia. of main brg. journ.
2.2490/2.250
Stem Clearance
.0037/.0055
Wear limits - min. dia.
2.248
Wear limits- max. cl.
.0075
Clearance limits
.0002/.0024
Desired stem clearance
.0045
Desired clearance
.001
Valve Springs, Intake and Exhaust:
C/S end play
.003/.008
Outside diameter
.9687
Piston Pin:
Length - valve closed
1.7031
Length
2.489/2.504
Load - valve closed
47-53 lbs.
Diameter
.8591/.8593
Wear limit - min. wgt.
42 lbs.
Wear limits - min. dia.
8588
Length - valve open
1.4218
Desired fit
Light push
Load - valve open
96-104 lbs.
Bush. Hole Dia. - Fin.
.8597/.8595
Wear limit - min. wgt.
86 lbs.
Wear limits - max. dia.
.8607
Valve Seat Inserts:
Pin Cl. in Bushing
.0006/.0002
Standard outside dia.
1.3485/1.3475
Desired Pin Fit
.0004
Press fit
.003/.005
Camshaft:
Cylinder dia.
3.4375/3.4395
Brg. journal dia. No. 1 1.8715/1.8725
Wear limits, cyl. bore
.008
Wear limits - min. dia.
1.8705
Piston pin hole dia.
.8595/.8597
Brg. journal dia. No. 2 1.7455/1.7465
Ring groove width No. 1, 2 & 3
Wear limits - min. dia.
1.7445
Max. wear limit
.1305
Brg. journal dia. No. 3 1.2465/1.2475
Ring groove width No. 4
.252/.253
Wear limits - min. dia.
1.2455
Max. wear limit
.255
Bush inside diameter
Piston fit-feeler gauge
.003
No. 1
1.8745/1.8755
Lbs. pull
5 to 10
No. 2
1.7495/1.7502
Piston Rings:
No. 3
1.2495/1.2505
Ring width No. 1, 2 & 3
.123/.124
Bush, clearance limits
.002/.004
Wear limits - min. width
.121
End play
.005/.009
Ring width No. 4
.2485/.249
Connecting Rods:
Wear limits - min. width
.2465
Bush. hole dia.
.9130/.9140
Ring gap clearance
Brg. hole dia.
2.0615/2.0620
No. 1, 2 & 3
.007/.017
Brg. thickness
.061651/.06190
No. 4
.007/.017
Wear limits - min. thk.
.06115
Ring side clearance
Dia. - crank pin
1.9365/1.9375
No. 1, 2 & 3
.0035/.0055
Wear limits - min. dia.
1.9355
No. 4
.003/.0045
Clearance limits
.0002/.0022
Desired clearance
.001
Wear limits - max. cl.
.0032
Side play
.006/.010
Desired Side play
.006
B-35
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