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Mercury 40 FourStroke - Camshaft Oil Seal Installation

Mercury 40 FourStroke
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CYLINDER HEAD
Page 4A-38 90-857046R1 NOVEMBER 2001
INSTALLING VALVES
NOTE: Always use new valve seals.
1. Apply engine oil to the valves and valve seats.
2. Compress the valve spring and retainer and install the valve keepers around the valve
stem. You may have to tap lightly on the end of the valve to seat the keepers.
NOTE: Valve springs are symmetrical and may be installed in either direction.
91-809494A1
b
a
a-Valve Spring Compressor Tool (91-809494A1)
b-Valve Keepers
Camshaft Oil Seal Installation
1. If removed, install new oil seal. Position seal so part number side is facing outward.
Press seal in until it makes contact with the inside flat surface.
a
58261
a-Upper Camshaft Oil Seal

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