Detroit Diesel MBE 4000 Service Manual page 58

1.2 CYLINDER HEAD
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Do not place the head mating surface down on a flat
surface. This would damage the injector nozzles, which
protrude slightly.
15. Remove the cylinder head and set it on wooden blocks or on its side.
16. Remove the head gasket.
17. Thoroughly clean the cylinder head, both contact surfaces (head and block), and surfaces
inside the cylinder of excess oil, grime, and paint chips.
18. With a straightedge, check the cylinder head surface for warpage. Refer to section 1.2.2.1.
Listed in Table 1-1 are warpage limits.
Description
Over a length of 150 mm (6 in.)
Table 1-1 Head Warpage Limits
19. Check the cylinder liner protrusion from the cylinder block. Listed in Table 1-2are the
specifications. Refer to section 1.3.2.2.
Description
Cylinder Liner Protrusion from block
Difference between the four measuring points
Table 1-2 Specifications for Measuring Cylinder Liner Protrusion
20. Inspect the cylinder head for cracks or signs of damage. Replace if necessary.
1.2.2 Cylinder Head Installation
Install the cylinder head as follows:
1. Install a new head gasket. Match up the holes in gasket with those in the cylinder block
and place the head gasket over the guide pins in the block.
2. Position the cylinder head on the head gasket. Make sure the head is seated onto the
guide pins.
1-10
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NOTICE:
Limit
0.015 mm (0.0006 in.)
Value: mm (in.)
0.230-0.330 mm (0.0090-0.0130 in.)
Max.: 0.02 mm (0.0007 in.)
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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All information subject to change without notice.
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