Sea Water Heat Exchanger (008-053)
B3.9 and B5.9 Series Engines
Section 8 - Cooling System - Group 08
Remove the top and bottom end caps (1) from the housing
and the o-rings (2) from the core (3).
Use a 4.76-mm [3/16-in] diameter brass rod to clean out
any buildup of scale in the aftercooler tubes.
Use clean water to flush the tubes of any loose debris.
Install the core (3) into the housing. Install the o-rings (2)
onto the ends of the core and then install the top and bottom
end caps (1).