Beta Marine Beta 50 Operator's Maintenance Manual page 43

Problem: High oil consumption
Possible Cause
Oil leaks:
Piston rings worn:
Valve stem and guide worn:
Piston rings gap facing the same direction:
Problem: Water in lubricating oil - general
Possible Cause
Core plug pushed out due to frozen block:
Water pump seal damaged:
Problem: Water in lubricating oil - heat exchanger cooled
Possible Cause
Oil goes "milky" due to seawater entering
exhaust manifold:
Problem: Water in lubricating oil - keel cooled
Possible Cause
Oil goes "milky" due to water entering
exhaust manifold and then into the sump:
Solution
Check for leaks.
Overhaul required.
Overhaul required.
Shift ring gap position. Dealer or service agent to check.
Solution
Dealer or service agent to check and replace.
Dealer or service agent to check and replace.
Solution
Check installation - has an anti-syphon valve been fitted?
Change engine oil and run engine for 10 minutes each
time to eliminate any water. Get fuel injection pump and
compression checked by dealer or service agent.
Solution
Check installation - has dry exhaust system been fitted
correctly, ensuring rain water cannot enter the exhaust
port and run back? (please refer to 'Dry Exhaust System
on page 13). Change engine oil and run engine for 10
minutes each time to eliminate any water. Get injection
pump checked by dealer or service agent.
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