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Mercury 305 CID - Oil Pan; Removal; Installation

Mercury 305 CID
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3A-42 - ENGINES 90-823225--1 1096
Oil Pan
Removal
1. Drain crankcase oil.
2. If necessary, disconnect outlet hose from seawa-
ter pump.
3. Remove dipstick and tube. On MIE models, be
carefull not to disturb orientation of banjo fit-
ting on bottom of pan.
71859
a - Banjo Fitting
b - Dipstick Tube
a
b
4. Remove oil pan.
Installation
1. Clean sealing surfaces of engine block and oil
pan.
2. Apply a small amount of Quicksilver RTV Sealer
to joints of rear seal retainer and joints of front
cover.
IMPORTANT: Quicksilver RTV Sealer sets up in
about 15 minutes. Be sure to complete assembly
promptly.
72343
a - Joints of Rear Seal Retainer
b - Joints of Front Cover
b
a
3. Install oil pan gasket in position as shown.
NOTE: A one-piece oil pan gasket may be re-used if
it is still pliable and is not cracked, torn or otherwise
damaged.
72344
a
a - Oil Pan Gasket
4. Install oil pan. Starting from the center and work-
ing outward in each direction, tighten 1/4-20 thd.
fasteners to 80 lb. in. (9 N·m) and 5/16-18 thd.
fasteners to 165 lb. in. (19 N·m).

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