Detroit Diesel 4000 Series, Service Manual, Page: 668 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 051.05.05 – REMOVAL OF CAMSHAFT
Removing Camshaft
Perform the following steps to remove camshaft:
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 mark and arrow
on flywheel housing are aligned.
2. If rocker arms on cylinder A1 are unloaded, the piston is in firing TDC. See Figure 390.
Figure 390 Removing Camshaft (Marine only)
3. If rocker arms on cylinder A1 are loaded, the piston is in overlap TDC.
4. Remove valve drive. Refer to section C 055.05.05.
5. Determine TDC on DDEC engines using a dial gage in cylinder A1. Refer to section C
037.05.05.
6. Separate electrical plug-in connection.
All information subject to change without notice.
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