190
POWERHEAD
COMPRESSION TESTING
COMPRESSION TESTING
Start and run outboard until it achieves o perating
temperature, then shut OFF.
Disconnect crankshaft position sensor (CPS) con-
nector. Remove all spark plugs.
Advance throttle linkage to WOT.
Install compression tester’s hose attachment into
spark plug hole (14 mm threads).
While cranking outbo ard with st arter, note maxi-
mum pressure reading on gauge. Repeat proce-
dure for each cylinder.
If eng ine shows a variatio n greater tha n 15 p si
(100 kPa) between cylinders, check for:
•
damaged cylinder head
•
damaged pistons
•
broken or stuck piston rings
•
scored cylinder walls
Return throttle to idle position and reconnect CPS
connector. Replace sp ark plugs. Refer t o S park
Plug
POWERHEAD REMOVAL
2-Cylinder Models
Remove lower motor covers. Refer to
Disconnect power trim connectors an d exhaust
water valve electrical connector (60, 65).
Disconnect cooling water ho ses from exhaust
housing.
A
WARNING
Protect against hazardous fuel spray.
Before starting any fuel system service,
carefully relieve fuel system pressure.
Refer to Relieving Fuel System Pressure
on p. 142.
To prevent accidental starting while ser-
vicing, twist and remove spark plug leads.
1.
Connectors
008429
1.
Overboard indicator hose
2.
Drain hose
004298
1
1
2
Содержание E-Tec 40 HP
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