TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
A/C Cylinder Head (QE Models) (012-104)
Section 12 - Compressed Air System - Group 12
Page 12-39
Some units have a press-fit intake valve retainer. If present,
carefully remove it to prevent part damage.
Remove the intake valve.
Turn the head assembly over and set it on a clean surface.
Remove the center capscrew. This capscrew can be re-
used.
NOTE: The center capscrew is shorter than the four corner
capscrews.
Remove the cover, cover gasket, head, and head gasket.
Remove the exhaust valve retainer and exhaust valve.
NOTE: The wave washers must be replaced.
L-1243