Detroit Diesel 4000 Series, Service Manual, Page: 784 / 2706

SERIES 4000 12/16V SERVICE MANUAL
Adjusting Valve Clearance
Perform the following steps to adjust valve clearance for entire engine:
NOTE:
Before valve clearance is adjusted, valve bridge must be adjusted. See Figure 483.
Figure 483 Adjusting Valve Clearance (Marine only)
To avoid personal injury when barring the engine over,
stand clear so that the crankshaft will not unexpectedly
rotate and cause loss of control of barring tool.
1. With barring tool, turn engine in normal direction of rotation until TDC A1 mark and
arrow on flywheel housing are aligned.
Adjusting Valve Clearance in Two Crankshaft Positions
Perform the following steps to adjust valve clearance in two crankshaft positions:
All information subject to change without notice.
C -638
Copyright © DETROIT DIESEL CORPORATION