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Mercury Bravo Sterndrive 520 - Page 73

Mercury Bravo Sterndrive 520
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4. Remove the bilge plug. The oil drain hose is tethered to the plug.
a - Bilge drain plug
b - Tether
c - Oil drain plug
d - Bilge drain flange
e - Oil drain hose
5. Pull the oil drain hose through the bilge drain flange.
6. Place an appropriate container directly under the oil drain hose.
7. Using two wrenches, separate the oil drain hose plug from the oil drain
hose, and allow the crankcase oil to drain until empty.
8. Place a container below the oil filter.
NOTE: To allow the oil to drain from the filter, loosen the filter enough to break
the internal vacuum. Let the oil drain back into the system for 15 minutes prior
to complete removal of the filter.
9. Remove the oil filter from the adapter and discard the old oil filter and the
old sealing ring.
10. Coat the sealing ring on the new filter with motor oil. Install the new
sealing ring and filter. Tighten the filter securely. Do not overtighten.
11. Using two wrenches, connect the oil drain hose plug to the oil drain hose
and place it back into the boat.
12. Tighten the bilge drain plug.
13. Remove the oil filler cap. Add oil to bring the level up to, but not over, the
"FULL" mark on the dipstick.
IMPORTANT: Always use the dipstick to determine exactly how much oil is
required.
a - Crankcase oil filler cap
6150
e
d
c
b
a
a
7899
MAINTENANCE
eng 61

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