Insufficient Engine Temperature; Low Engine Oil Pressure; Battery Will Not Come Up On Charge - Mercury HP 500 EFI Bravo XR/XZ/III User Manual

Insufficient Engine Temperature

Possible Cause
Faulty water thermostat.
Faulty oil thermostat.
Faulty gauge or sender.

Low Engine Oil Pressure

Possible Cause
Insufficient oil in crankcase.
Excessive oil in crankcase
(causing it to become aerated).
Diluted or improper viscosity
oil.
Faulty Oil Pressure Gauge or
Oil Pressure Sender.

Battery Will Not Come Up On Charge

Possible Cause
Excessive current draw from
battery.
Loose or dirty electrical
connections or damaged
wiring.
132
TROUBLESHOOTING
Remedy
Replace.
Replace
Test with shop gauge.
Remedy
Check and add oil.
Check and remove required
amount of oil. Check for cause
of excessive oil (improper
filling, etc.).
Change oil and oil filter, using
correct grade and viscosity oil.
Determine cause for dilution
(excessive idling, etc.).
Check oil pressure with a
mechanical shop gauge.
Remedy
Turn off non-essential
accessories.
Check all associated electrical
connections and wires
(especially battery cables).
Clean and tighten faulty
connections. Repair or replace
damaged wiring.
500 EFI Bravo