Disassembly of Secondary and Final Fuel Filters,
This task is the same for secondary fuel filter and
final fuel filter. This task is shown for final fuel
Before taking off elbows (1) , note their positions so
they will be put back at same angles.
Some trucks may have only one bleeder valve (3).
Using 9/16-inch wrench, unscrew and take off three elbows ( 1).
Using 5/8-inch wrench, unscrew and take off elbow (2).
Using 7/16-inch wrench, unscrew and take off two bleeder valves (3).
Using 9/16-inch wrench, unscrew and take off drain cock (4).
Using 5/8-inch wrench, unscrew and take off sleeve nut (5) , washer (6) ,
and gasket (7). Throw away washer and gasket.
Take off filter housing (8) , and throw away filter head gasket (9).
GO TO FRAME 2