B3.9 and B5.9 Series Engines
A/C Cylinder Head (QE Models) (012-104)
Section 12 - Compressed Air System - Group 12
Carefully place the intake valve in the valve plate. Install the
intake valve retainer.
Install the valve plate assembly.
Lubricate the threads under the head and washer of the
capscrews, if initially installed.
Install the four head capscrews and washers.
Tighten all five capscrews in the proper sequence.