FUEL PUMP - CONTINUED
FRONT COVER ASSEMBLY REPAIR - CONTINUED
Inspect for damage or wear.
Discard if damaged or worn.
Inspect for wear, scoring, nicks, or broken
drive shaft and
Tag worn, scored, nicked, and bro-
ken parts for replacement.
Perform steps 91 thru 94 only if tachometer drive shaft, bushing, or gear are to be
replaced. If none of these parts are to be replaced, proceed to step 95.
91. Tachometer drive
Tachometer gear (4)
Using arbor press and mandrel, or
ST-1231 gear puller, press or pull
tachometer gear from tachometer drive
b. Remove tachometer bushing.
Steps 92 and 93 cover inspection for tachometer drive shaft and tachometer bushing.
Perform steps 92 and 93 only if these parts have not been tagged for replacement.
Using 0- to 1-inch micrometer, measure
tachometer drive shaft in several places.
Diameter should be 0.3950 to 0.3955 inch
(10.033 to 10.046 mm).
Discard if worn smaller than 0.3950
inch (10.033 mm).
Using bore gage, measure inside diameter
of tachometer bushing. Inside diameter
should be 0.3963 to 0.3970 inch (10.066 to
Discard if worn larger than 0.3970
inch (10.084 mm).