Westerbeke BCG4.0KW Operator's Manual page 58

Engine Oil Change (10 include filler)
1. Draining the Oil Sump
Discharge the old oil through the sump drain hose (at-
tached at the front of the engine) while the engine is still
warm. Drain the old oil completely, replace the hose in
its bracket, and replace the end cap securely.
Always observe the old oil as it is removed. A yellow/gray
emulsion indicates the presence of water in the oil. Al-
though this condition is rare, it does require prompt at-
tention to prevent serious damage. Call a competent
mechanic should water be present in the oil. Sea water
present in the oil can be the result of a fault in the exhaust
system attached to the engine, and/or water siphoning
through the sea water cooling circuit into the exhaust,
filling it up into the engine (refer to the exhaust illustra-
tions on pages 21 and 23).
2. Replacement of the
Oil
Filter
When removing the used oil filter, you may find it helpful
and cleaner to punch a hole in the upper and lower por-
tion of the old filter to drain the oil from it into a container
before removing it. This helps to lessen spillage. A small
style automotive filter wrench should be helpful in remov-
ing the old oil filter. Place some paper towels and a plas-
tic bag around the filter when unscrewing it to catch any
oil left in the filter. (Oil or any other fluid on the engine
reduces the engine's cooling ability. Please keep your
generator's engine clean.) Inspect the old oil filter as it is
removed to make sure that the rubber sealing gasket
came off with the old oil filter. If this rubber sealing gas-
ket remains sealed against the engine block, gently
remove it. The replaceable cartridge-type oil filter re-
quires no cleaning inside, so
IT
may be properly disposed
of.
When installing the new oil filter element, wipe the filter
gasket's sealing surface on the engine block free of oil
and apply a thin coat of clean engine oil to the rubber gas-
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ket on the oil filter. Screw the filter onto the threaded oil filter stub, and then tighten the filter firmly by hand
NOTE: Generic filters are not recommended, as the material standards or diameters of im-
portant items on generic parts might be entirely different from genuine parts. Immediately
after an oil filter change and oil fill, run the engine to make sure the oil pressure is normal and
that there are no oil leaks around the new oil filter.
55 Westerbeke Generators