Polaris msx 110 Service Manual page 30

Engine Cooling System Pressure Test
1. Test the system pressure capacity by removing the air
bleed hose that connects the expansion tank to the
coolant outlet manifold on the intake--side of the
engine.
2. Insert a small bolt or plastic plug into the end of the
bleed hose and secure with small gear clamp.
3. Attach a Mity Vact hand pump to the expansion tank
air bleed nipple. Pressurize the expansion tank to 10 --
15 psi (.7 -- 1 bar). The internal engine cooling circuit
should maintain the pressure.
PRESSURE SPECIFICATION
10 -- 15 psi (.7 -- 1 bar)
4. A drop in pressure may indicate a worn or damaged
hose, loose hose connection, or engine--related
mechanical damage.
2004 Four Stroke PWC Service Manual
MAINTENANCE
TO WATER
PUMP
AIR BLEED
MAX
MIN
2.13