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10.
Engine Maintenance
This manual provides basic information on routine maintenance
of Marine Power Engines. Whether the reader is an experienced
marine mechanic or a first time boat owner, we strongly suggest
you thoroughly read these procedures BEFORE you attempt any
procedure. Make sure you are familiar with the tools suggested
and the methods recommended. Safety is our first concern. If
repair required is beyond your expertise, please contact your
dealer or other qualified technician. This manual contains guide-
lines to convey a particular level of risk:
DANGER
DANGER
Hazards that will result in severe injury or death.
WARNING
WARNING
Hazards that could result in severe injury or death. Caution:
Hazards which could result in minor injury or property damage.
Please be careful.
CAUTION
CAUTION
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Electrical, ignition and fuel system components on Marine Power
Engines comply with U.S. Coast Guard (USCG) Rules and Regula-
tions to minimize risks of fire and explosion. Use of replacement
electrical, ignition and fuel components which do not comply with
these rules and regulations could result in a fire or explosion and
must be avoided. The electrical and ignition system is capable of
violent electrical shock. Always disconnect the battery cables when
performing any work where the cables could touch.
Take care to properly install and tighten all components when
servicing the electrical, ignition and fuel systems. If the installa-
tion is not correct, sparks could ignite fuel vapors from the fuel
system.
If you are doing repair work around the intake or exhaust
openings, always protect those openings against foreign
matter entering the cylinders. Care must be taken to use
exact replacement parts. Damage could result if mismatched.
If a grade 5 hex head bolt is removed, the same grade 5,
hex head bolt must be replaced. If you cannot re-use the
same bolt, do not improvise. Performance could be sacrifice
without original Marine Power parts or parts recommended
by Marine Power. A marine environment is a tough one. Parts
subjected to salt water can rapidly corrode and engine failure
could result. Warranty on Marine Power Engines could also be
affected if other than recommended replacement parts are used.
Crankcase Oil Change
IMPORTANT! Start engine and operate until normal temperature
is reached. Warm oil flows more freely carrying away more im-
purities. Remove the oil into a suitable container. Marine Power
DANGER
equips their engines with an E-Z oil drain hose. This hose can
sometimes be routed through the hull drain fitting while the boat
is on its trailer. Draining can take several hours if the oil is not
warmed before draining. Some oil will remain in the pan and en-
gine. It is a small quantity but may make the new oil appear used.
WARNING
The Federal Water Pollution Control Act prohibits the discharge of
oil or oily waste into or upon the navigable waters and contiguous
zone of the United States, if such discharge causes a film upon, or
discoloration of, the surface of the water, or causes an emulsion or
CAUTION
sludge beneath the surface of the water. Violators are subject to a
penalty of $5,000.00.
After replacing drained oil, start engine and run for 5 minutes to
circulate oil throughout. Inspect entire engine for leakage. Shut
off engine and wait 5 minutes for oil to drain back into pan. Check
level with dipstick. Add oil to proper level if needed.
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