MAINTENANCE Gaining Access To The Valves — Gain access to the valves as follows: inspection hole on the timing case (see Figure 35). NOTE: Clean the cylinder head cover before removing it. 1. Remove the cylinder head cover (see Figure 34). Figure 35 Inspection Hole in the Timing Case 4. Select a method for adjusting the valve lash. See Figure 36 for the valve layout on both four- and six-cylinder engines. There are two acceptable methods for adjusting valve lash: In order, according to the timing sequence used for fuel injection ("Method One”) By type of valve, depending on crankshaft position ("Method Two”) Figure 34 Cylinder Head Cover 2. Remove the inspection cover on the timing case. 3.
Fit the cranking device listed in Table 25 into the 80 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0055 04/08 Copyright © 2008 DETROIT DIESEL CORPORATION