Check the front engine-support fasteners for tight-
ness. Tighten the 5/8-inch fasteners 125 lbf·ft (170
N·m).
NOTE: At engine overhaul, and whenever the
engine has been removed, inspect the lower
and upper isolators (see
Fig. 3, Refs. 1 and 6),
and replace them if they are worn; this applies
to both the front and rear isolators. See Group
01 of the Century Class Trucks Workshop
Manual for procedures.
Engine01
Century Class Trucks Maintenance Manual, January 201601/4