BRP E 250 L HO AG B, Service Manual

Page: 162 / 460

Fuel System
Fuel System Tests
162
•
Check fuel flow through fuel lift pump. Use fuel
primer bulb to force fuel through pump.
No pressure
•
Momentarily prime or squeeze primer bulb to
check gauge operation.
•
Check fuel flow through fuel lift pump. Use fuel
primer or primer bulb to force fuel through
pump.
•
Check pulse hoses and fittings restrictions.
Electric Fuel Pump Pressure Test
Install hose pinching pliers on the short hose
between the fuel filter bracket to the vapor separa-
tor assembly. This will prevent fuel from draining
out of the vapor separator.
Temporarily install a 0 to 15 psi (0 to 103 kPa)
Fuel Pressure Gauge, P/N 5006397 or equivalent,
and T-fitting between the intermediate fuel pump
outlet and the fuel supply hose to the water sepa-
rating fuel filter.
Remove the hose pinching pliers.
Prime the fuel system and check for leaks. START
the outboard and run at idle speed. Hold the fuel
pressure gauge level with the fuel inlet fitting and
monitor the gauge for pressure reading.
Pressure should stabilize and gauge must not
indicate less than 6 psi (41 kPa).
Results:
Normal pressure
•
Perform the Fuel Lift Pump Vacuum Test on
p. 163. Make sure no air leaks or restrictions
exist in the fuel supply hose or boat fuel system.
Low pressure
•
Perform the Fuel Lift Pump Vacuum Test on
p. 163. Make sure no air leaks or restrictions
exist in the fuel supply hose or boat fuel system.
•
Check fuel flow through fuel lift pump.
No pressure
•
Check fuel flow through fuel lift pump.
Fuel Circulation Pump Pressure Test
Install Fuel Pressure Test Adapter, P/N 357713,
on the fuel pump and vapor separator assembly
and to the fuel connector on the fuel rail.
Install a 0 to 60 psi (0 to 415 kPa) Fuel Pressure
Gauge, P/N 5007100 or equivalent, to the fitting
on the fuel pressure test adapter.
Running Outboard
START the outboard and check pressure. System
pressure should be 24 to 34 psi (165 to 234 kPa)
@ idle RPM.
Shut OFF outboard. Monitor pressure gauge.
1. Hose pinching pliers 009201
1. Fuel pressure gauge
2. T-fitting
009202
1
2
1
1. Fuel Pressure Test Adapter, P/N 357713
2. Fuel pressure gauge
009200
1
2