Service Manual

ISB, ISBe and QSB (Common Rail [...] Aftercooler Assembly
Section 10 - Air Intake System - Group 10 Page 10-5
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Remove
NOTE: The rear engine lifting bracket is secured to the
engine with the aftercooler mounting capscrews.
Loosen the aftercooler mounting capscrews at the
flywheel housing (1), the cylinder block (2), and the
cylinder head (3).
Remove the aftercooler assembly.
Disassemble
Mark or note the aftercooler inlet and outlet water
connection locations.
Remove the zinc plugs from the upper water transfer
connection.
Remove the three capscrews and the upper water
connection.
CAUTION
The aftercooler core assembly will slide out of the
cooler housing when removing the lower aftercooler
water connection. To reduce the possibility of
damaging the core, lay the aftercooler assembly on
its side to remove the connection and the core.
Lay the aftercooler assembly on its side.
The core assembly has two flat sides which must be
orientated toward the aftercooler air intake and outlet
sides of the aftercooler.
Remove the lower connection cover and the core.
Remove the upper and lower sealing o-rings.
Clean and Inspect for Reuse
WARNING
Wear appropriate eye and face protection when using
compressed air. Flying debris and dirt can cause
personal injury.
NOTE: The aftercooler core can be cleaned and tested by
a radiator cleaning facility. Ultrasonic cleaning is the
preferred method of cleaning.
Use soap and water to clean the aftercooler and end
caps.
Dry with compressed air.