Service Manual

ISB, ISBe and QSB (Common Rail [...] Air Compressor Cylinder Head, Single Cylinder
Section 12 - Compressed Air System - Group 12 Page 12-15
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Inspect the sealing surface on both halves of the cylinder
head for damage. If damage is found, the cylinder head
must be replaced.
Assemble
NOTE: The assembly process is not required for new air
compressor cylinder head kits. These kits include a
cylinder head with all of the gaskets assembled and ready
for installation on the air compressor crankcase.
Place the new gasket on the lower section of the cylinder
head.
Place the upper section of the cylinder head on the
gasket.
Install the five Torx™ head capscrews finger-tight.
NOTE: Do not tighten these capscrews at this time.
These will be tightened later during the installation
procedure.
NOTE: Make sure the unloader slider plate, gasket
surfaces, and valve plate are free of any debris before
assembling the unloader slider plate.
Apply a spot of assembly lubricant, Part Number
3163087, or equivalent, to the back of the unloader slider
plate and to the unloader slider plate guide pin.
Install the unloader slider plate onto the air compressor
head by locating it on the unloader slider plate pivot pin
and the unloader slider plate guide pin.
NOTE: Make sure the unloader slider plate is properly
seated and that you have used enough assembly
lubricant to securely hold it in position during the
installation procedure or damage to the unloader slider
plate may occur.