5. Remove the camshaft oil seal.
6. Compress the valve springs using a valve spring compressor.
3198
Valve Spring Compressor 91‑809494A1
7. Remove keepers, upper seats, springs, seals, lower seats, and intake/exhaust valves.
NOTE: Valve seals are not reusable.
a - Exhaust valve
b - Intake valve
c - Valve seat
d - Valve seal
e - Valve spring
f - Retainer
g - Keepers
3200
a
b
c
d
e
f
g
Cylinder Head
Page 4B-14 © 2018 Mercury Marine 90-8M0125265 eng NOVEMBER 2017
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