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Mercury 20 EFI FourStroke Service Manual

Mercury 20 EFI FourStroke
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NOTE: Be careful to not lose the two dowel pins.
a - Screw and clamp
b - Pry point (one each side of base)
11. Remove the gasket from the gear housing.
a - Shift shaft
b - O‑ring
c - Gasket
12. Lift the shift shaft until the spring pin aligns with the notch in the shift shaft bracket. Rotate the shift shaft 90 degrees, and
slide the shift shaft out of the water pump base.
13.
Remove the water pump base seal with a seal puller. Do not scar the water pump base seal surface with the seal puller. If
the surface is damaged, replace the water pump base.
a - Notch in shift shaft bracket
b - Spring pin
c - Shift shaft
d - Water pump base seal
14. Remove and replace the shift shaft O‑ring from the top of the water pump base. Apply 2‑4‑C with PTFE to the O‑ring
before installation.
Tube Ref No. Description Where Used Part No.
95
2-4-C with PTFE Shift shaft O-ring 92-802859A 1
a
b
62852
62853
a
b
c
a
b
c
d
62854
Gear Housing (2.15:1)
Page 6A-20 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017

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Mercury 20 EFI FourStroke Specifications

General IconGeneral
BrandMercury
Model20 EFI FourStroke
CategoryEngine
LanguageEnglish

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