Detroit Diesel MBE 4000 Service Manual page 213

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16. Install the cylinder head on the EGR engine. Refer to section 1.4.1.
1.20.4
See Figure 1-127 and listed in Table 1-45 are the specifications for valve seats.
1. Exhaust Valve Seat
Figure 1-127
Description
Valve seat angle (E)
Valve seat surface
diameter (G)
Relative position (H) to
diameter G
Table 1-45
All information subject to change without notice.
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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Valve Seats
Valve Seats on EGR Engine
Intake Valve, mm (in.)
30 Degree
41.99-42.01(1.65-1.654
4.00-4.15 (0.157-0.163)
Valve Seat Specifications for EGR Engine
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2. Intake Valve Seat
Exhaust Valve-non-
EGR, mm (in.)
45 Degree
38.99-39.0 (1.535-1.535)
3.80-3.95 (0.15-0.16)
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MBE 4000 SERVICE MANUAL
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Exhaust Valve-EGR,
mm (in.)
36 Degree
38.99-39.01(1.535-1.536)
4.00-4.15 (0.157-0.163)
1-165
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