Repair or replace the fuel pump if test readings are not
within the values specified in
TABLE
1.
TABLE
1
PULSE PUMP TEST SPECIFICATIONS
Engine
Speed
Low
Idle
High Idle
Pump Inlet Pump Outlet
Vacuum Pressure
(Minimum) (Minimum)
2.6
inches
1.7
psi
of
mercury
2.6
inches
1.7
psi
of
mercurv
I
I
1
Pulse
Pump Repair
This section applies only to Facet fuel pump. The Nikki
fuel pump is not repairable; replace unit if test readings
are not within the values specified in Table
1.
1.
Remove the vacuum and fuel lines. Inspect the lines
for wear, cracking, and brittleness. Replace as
necessary.
2.
To
insure correct alignment when reassembling,
scribe a line across the outer pump parts on each
end
of
the pump (Figure
17).
3.
Holding the pump carefully, remove the assembly
screws.
4.
Carefully pull apartthe pumpsectionsand checkfor
worn or damaged parts. Replace with new parts
where necessary or install pump repair kit (Fig-
ure
18).
ASSEMBLY
SCREWS
PUMP
COVER GASKET
5.
Checkand unclog
(if
necessary) thesmall diaph-
ragm air bleed hole located behind the pump
diaphragm in the pump base (Figure
18).
-1
A
clogged diaphragm air bleed
hole can cause diaphragm wear
and seal damage while inhibiting pump opera-
tion.
d
6.
Replace gaskets and reassemble pump. Reinstall
assembly screws, checking the scribe marks for
proper alignment. Reinstall fuel and vacuum lines
and clamps.
.
Use care when reassembling
and reinstalling fhe pump.
/m-
proper parts alignmenf or misconnecfed fuel
lines can result in reaking fuel, creating a serious
fire hazard.
Mechanical Pump Removal and Repair
Removal:
1.
Remove the fuel inlet and outlet lines from the
Pump.
2.
Remove the two capscrews holding the pump to
the engine.
3.
Remove the pump, spacer (if used) and gasket
from the engine and discard the gasket.
REED
VALVE
FIGURE
18.
EXPLODED
VIEW OF FACET PULSE PUMP
20
To Next Page
Loading...
Need help?
General
