(4) Check governor weight carrier shaft (16) in its
bushing (15) before removal. Excessive wear
can be felt by moving shaft from side to side in
(5) Observe gear backlash between weight shaft
gear and drive gear (19). Normal backlash is
0.005 to 0.009 inch (0.13 to 0.23 mm).
(6) To remove the governor weight and carrier
assembly (16) from the drive cover (31) use a
puller to pull weight shaft assembly from front
cover. The bushing (15) is locked on the shaft
with snap ring (14) and will usually come out of
the cover with weight shaft assembly; however,
if snap ring pulls off shaft leaving bushing in
front cover, use an internal engaging puller to
tachometer drive housing.
(8) Use a dowel puller to remove tachometer drive
shaft (9), seal (7), spacer (8), bushing (11), and
(9) Remove snap ring (20) with hose clamp pliers.
Remove coupling (18), gear (19), and
Remove spider coupling (22), screw (23),
lockwasher (24), washer (25), and coupling
hub (25A). Press drive shaft (27) from
Press gear (26) from shaft (27).
Press oil seals (30) from cover.
(1) Inspect bushing (15); if worn larger than 0.504
inch (12.80 mm), replace bushing.
(2) Visually inspect gears for cracked, broken, or
(3) Inspect all shafts for wear or scoring.
Repair. Repair by replacing any worn or damaged
(1) Clean all parts thoroughly with mineral spirits.
(2) Press first oil seal (30) into drive cover with lip
toward outside of pump, and press second oil
seal into drive cover with sealing lip toward
inside of fuel pump. Seals must be spaced so
the "telltale" hole is not covered.
(3) Lubricate oil seal assembly tool and install tool
over main shaft (27). Place snap ring (20)
between drive gear (19) and bearing (21).
Press main shaft into front cover and through
seals. Secure snap ring (20) in cover groove.
Remove oil seal assembly tool and install
(4) Line up oil groove in top of tachometer drive
bushing (11) with fuel pump drive shaft. Press
gear (12), bushing (11), and shaft (9) into cover
until bushing bottoms.
(5) Install spacer (8) on top of bushing with slotted
(6) Install new oil seal (7) with spring side down.
Spacer (8) must bottom on bushing.
Do not overpress spacer; it can
(7) Cover top of seal with a thin coat of lubricating
oil. Secure tachometer adapter (6) to cover with