Mercury Racing 1550 STERNDRIVE, Operation, Maintenance & Warranty

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6 - M
AINTENANCE
90-8M0114812 JANUARY 2016 47
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Tube Ref
No.
Description Where Used Part No.
122
Extended Life
Antifreeze/
Coolant
Closed cooling system 92-877770K1
C
HANGING
F
LUIDS
C
HANGING
C
RANKCASE
O
IL
(R
ESERVOIR
)
AND
F
ILTERS
This procedure is the preferred method for servicing the engine oil
supply system. If there is limited access to the oil pump, change the
fluid in the oil tank and replace the oil filter. The amount of oil needed
when not using the oil pump to scavenge the oil from the engine is
approximately 9.5 Liter (10 US qt).
1. Place a sufficiently sized container, 19 Liter (20 US qt) below
the oil reservoir.
2. Remove the plug from the reservoir bottom and let the oil drain.
a - Oil drain plug
a
7436
3. Loosen the oil pump mounting bolts and remove the belt. Using
an electric drill, manually turn the oil pump pulley (clockwise) to
discharge any remaining engine oil into the reservoir to be
drained.
4. To replace the spin‑on oil filter: Loosen the filter approximately
¼ turn and wait one minute for the oil to drain into the engine
sump, then remove it.
5. Replace it with a new filter. Be sure to lubricate the seal with
clean engine oil before installing it.
6. Remove the cover of the screen‑style filter and mark the
element so it can be returned to its original orientation with the
correct side up. Clean the element with solvent.
IMPORTANT: The screen‑style filter element must always be
returned to its original orientation (correct side up) to prevent the oil
from flowing through it in the wrong direction.
a - Oberg screen‑style filter
a
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