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Mercury 20 EFI FourStroke

Mercury 20 EFI FourStroke
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Oil Strainer Removal
Remove the oil strainer and hose from the cylinder block.
a - Hose
b - Cable tie
c - Oil strainer
Crankcase and Crankshaft Removal
1.
Remove the ten crankcase cover screws and remove the crankcase cover.
a - Screw (M8 x 50) (4)
b - Screw (M6 x 30) (6)
2. Remove the connecting rod cap screws.
3.
Identify the connecting rod and cap position with indelible ink or paint. Do not use a scribe or punch for identification.
IMPORTANT: Each connecting rod and cap are a matched set. Do not intermix the connecting rod caps with the
connecting rods.
4. Remove the crankshaft.
a
b
c
64049
a
b
64051
Cylinder Block/Crankcase
Page 4A-14 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017

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