Air Compressor Pressure Test - Mercury Optimax 115 Service Manual

Air Compressor Pressure Test

Install Pressure Gauge Assembly 91-852087A1/A2 to fuel rail pressure test valves. Star-
board rail has fuel pressure test valve. Port fuel rail has air pressure test valve.
NOTE: After 15 seconds of cranking engine with starter motor, air pressure gauge should
indicate 79 2 psi (544.0 13.8 kPa) and fuel pressure gauge should indicate 89 2 psi
(613.5
a -
b -
c -
d -
90-855347R1 JANUARY 1999
13.8 kPa).
a a
d
d
Air Pressure Gauge (Should Indicate 79
Fuel Pressure Gauge (Should Indicate 89
Fuel Pressure Test Valve
Air Pressure Test Valve
DIRECT FUEL INJECTION
b
b
c
c
2 psi (544.0 13.8 kPa)
2 psi (613.5 13.8 kPa)
56146
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