Engine Overheating - Mercury SST120 User Manual

Engine Overheating

1
If the engine overheats, immediately reduce throttle speed to idle
and check for a steady stream of water coming out of the water
pump indicator hoses (a).
Operating the engine while overheated will cause engine dam-
age. The overheat problem must be corrected before you can
resume normal operation.
a. If no water is coming out of the water pump indicator
hose (a) or flow is intermittent:
•
Stop engine and check cooling water intake holes for obstruction.
•
If no obstruction is found, this may indicate a blockage in the cool-
ing system or a water pump problem.
•
Have the outboard checked by your dealer.
b. If a steady stream of water is coming out of the water
pump indicator hose (a) and the water temperature
gauge continues to indicate hot:
•
There may be insufficient cooling water or an engine problem.
•
Stop engine and have it checked by your dealer.
OPERATION
a
1
CAUTION
34