Water Pressure Check - Mercury Optimax 115 Service Manual

COOLING

Water Pressure Check

Using Water Pressure Gauge 91-79250A2, cut compressor water inlet hose and install tee
fitting (provided) as shown.
NOTE: This is also the same location for installing the water pressure hose for a dash
mounted water pressure gauge.
a -
b -
c -
d -
e -
g -
Shut off engine and refer to troubleshooting chart if water pressure is not within
specification. DO NOT exceed 3000 RPM in neutral.
Idle
Poppet Valve Opening
W.O.T.
Page 4B-8
b
9
a
e
f
Tee Fitting (22-64706)
Fitting (22-63651)
Tubing
Compression Nut (22-63670)
Compressor Water Inlet Hose (Cut and splice in this location)
f - Sta-straps
Compressor Water Inlet Hose
g
56141
d
c
Loctite Pipe Sealant w/Teflon-592
9
52582
WARNING
12.0 PSI (82.1 kPa)
1.0 – 3.0 PSI
(6.8 – 20.5 kPa)
4 – 9 PSI
(27.4 – 61.6 kPa)
Minimum
90-855347R1 JANUARY 1999