Hudson 1948 - 1952, Service Manual

Page: 43 / 333

ENGINE 3 - 1
SECTION 3
ENGINE
SPECIFICATIONS
ENGINE:
Arrangement
Compression Pressure
Firing Order
Serial No. Location
Vibration Dampener
ALL 6 CYLINDER
L-Head
100 Lbs. Minimum
1-5-3-6-2-4
Right hand front of block
Yes (in rubber)
ALL 8 CYLINDER
L-Head
100 Lbs. Minimum
1-6-2-5-8-3-7-4
Front of block
Yes (in rubber)
BORE AND STROKE:
232 Cu. In. 3-9/16" x 3-7/8"
262 Cu. In. 3-9/16" x 4-3/8"
308 Cu. In. 3-13/16" x 4-1/2"
254 Cu. In. 3" x 4-1/2"
HORSEPOWER-ACTUAL:
232 Cu. In. 112 at 4200
262 Cu. In. 123 at 4000
308 Cu. In. 145 at 3800
254 Cu. In. 128 at 4200
PISTON DISPLACEMENT
IN CUBIC INCHES
232
262
308
254
COMPRESSION RATIO
6.7 : 1 or 7.2 : 1
6.7 : 1 or 7.2 : 1
6.7 : 1 or 7.2 : 1
6.7 : 1 or 7.2 : 1
HORSEPOWER-TAXABLE
30.4
30.4
34.9
28.8
ENGINE MOUNTING-
ALL MODELS
3 points in rubber with standard
transmission
4 points in rubber with Hydra-
Matic transmission
Material
Drive
Bearings:
Type
Number
Diameter & Length
No. 1
No. 2
No. 3
No. 4
No. 5
Radial Clearance
End Play
Timing Marks
Timing Chain
Timing Chain width
CRANKSHAFT:
Type
Journal Size
No. 1
No. 2
No. 3
No. 4
No. 5
Crankpins
ALL 6 CYLINDER
Cast Iron Alloy
Chain
Steel-Back Babbit
4
2.375" x 1-3/16"
1.997" x 15/16"
1.965" x 15/16"
1.497" x 1-5/16"
None
.0015" to .002"
.003" to .005"
On Sprockets and chain
60 links 3/8". pitch
1-1/4"
Compensated
2.4988" to 2.4998"
2.4988" to 2.4998"
2.4988" to 2.4998"
2.4988" to 2.4998"
None
2.1244" to 2.1254"
ALL 8 CYLINDER
Cast Iron Alloy
Gears
Steel-Back Babbit
5
2.029" x 1-3/8"
1.998" x 1-1/16"
1.966" x 1-1/4"
1.9355" x 1-1/16"
1.498" x 1-5/16"
.0015" to .002"
Spring loaded thrust button
On gears
None
None
Compensated
2.279" to 2.280"
2.311" to 2.312"
2.341" to 2.342"
2.373" to 2.374"
2.404" to 2.405"
1.935" to 1.936"