Positive Crankcase Ventilation (Pcv) Valve - Mercury 4.3 MPI SeaCore Operation & Maintenance Manual

Section 4 - Maintenance
Description
Flame arrestor bracket nut
10. Connect the crankcase ventilation hose to the fitting on the flame arrestor and valve cover.
11. Install the engine cover.
a.
4.3 ECT models: Holding the edges of the engine cover, position the four engine cover legs, near the outer corners
of the cover, over the center holes in the cover grommets. Carefully push the cover straight down until fully seated.
Keep the engine cover level to avoid breaking the legs.
b. 5.0 ECT models: Position the cover over the cover mount bracket. Secure with the engine cover knob.
b
c
d
e
f
5.0 ECT engine cover
a - Engine cover knob
b - Engine cover
c - Nuts, flame arrestor
d - Cover mount bracket
e - Flame arrestor
f - Crankcase ventilation hose

Positive Crankcase Ventilation (PCV) Valve

The 4.3 ECT engine does not have a serviceable PCV valve.
Page 60
a
b
a
4.3 ECT engine cover—shown under the cover
a - Engine cover legs
b - Engine cover grommets
45314
Nm lb‑in.
12 106
33180
90-8M0113859 DECEMBER 2015
eng
lb‑ft
–