TRUCK SERVICE MANUAL
ENGINE
Table 2-1: Specifications - Inch [mm] (Reference Fig .
2-1) (Cont)
Ref.
Worn
New
New
No.
Measurement
Limit
Minimum
Maximum
2
Valve, Stem
Outside Diameter
(1)
0.449
0.450
0.451
[11.41]
[11.43]
[11.46]
Face Angle (2)
30 deg.
30 deg.
3
Valve Guide
Inside Diameter
(3)
0.455
0.4525
0.4532
[11.56]
[11.494]
[11.511]
Assembled Height
(4)
1.315
1.325
[33.40]
[33.66]
4
Valve Seat Insert*
Outside Diameter (5)
2.0025
2.0035
[50.864]
[50.889]
Cylinder Head
Inside Diameter
(6)
1.9995
2.0005
[50.787]
(50.813]
Insert Height
(7)
0.278
0.282
[7.06]
[7.16]
Run Out In 360 Deg.
0.002
[0.05]
Refaced Seat Width
(8)
0.063
0.125
[1.59]
[3.18]
5
Valve Spring **
Assembled Height
(9)
2.250
[57.15]
* See Ref No. 8 for oversize valve seat inserts.
** See Ref No. 9 for valve spring data.
6
Crosshead Guide
Outside Diameter (10)
0.432
0.433
0.4335
[11.18]
[11.00]
[11.011]
Assembled Height
(11)
1.860
1.880
[47.24]
[47.75]
351
