Owners Manual 3
Do oil and filter change after the engine has run a total of 10 hours.
10-30hrs: Use varied load and engine speed. The engine can be used up to 100% throttle and
3600 rpm for shorter periods. Do not stay at one load and engine speed
configuration for more than 30 minutes.
Do oil and filter change after the engine has run a total of 30 hours.
Use oil and filter as specified in BUKH V8 Maintenance book. This is highly important!
If you have any questions regarding this break-in procedure please consult the technical
department at your local BUKH dealership or BUKH.
Starting procedure
Before starting the engine always check the oil and coolant level. Also inspect that no
leaks on oil-, fuel- or cooling systems are evident.
1. Make sure gear is in neutral and that throttle is in idling position.
2. Turn ignition key to the ON position and wait for glow light to stop. This allows the
automatic glow system to glow its first sequence.
DO NOT USE STARTING AIDS SUCH AS STARTING GAS, ETHER OR
OTHER. (This will void any warranty.)
3. Turn the ignition key to the CRANK position to start the engine. If the engine doesn’t start
in 15 seconds, wait for 30 seconds and go back to step 2.
As soon as the engine starts, let it run at idle while checking oil pressure and volt reading.
It’s not unusual with smoke from the exhaust system just after start-up but this will stop once
the engine reaches operating temperature. Glow system will automatically afterglow.
Recommended cruising engine speed for all BUKH engines is 2700-3200 rpm. although the
maximum rated effect is at a higher engine speed. It is necessary to choose a propeller that
will allow the engine to reach maximum engine speed at wide open throttle to not inflict
unnecessary load on the engine, which could effect engine lifetime and void warranty. Do
not exceed maximum recommended engine speed as the pump reduces the amount of
injected diesel after this engine speed and engine power drops quickly.
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