Maintenance
90-860174050 JUNE 2005 Page 49
Cleaning The Flame Arrestor
!
WARNING
Avoid gasoline fire or explosion. Gasoline is extremely flammable and highly explosive
under certain conditions. Be careful when cleaning flame arrestor; ensure that ignition is
off. Do not smoke or allow sources of spark or open flame in area when cleaning flame
arrestor.
1. Disconnect and remove the crankcase ventilation hose from the fitting on the flame
arrestor and valve cover.
2. Remove the flame arrestor.
a - Locknut
b - Sealing washer
c - Typical carburetor
d - Crankcase ventilation hose
e - Flame arrestor
3. Clean the flame arrestor with warm water and a mild detergent.
4. Inspect the flame arrestor for holes, cracks or deterioration. Replace if necessary.
5. Allow the flame arrestor to air dry completely before use.
6. Clean the crankcase ventilation hose with warm water and a mild detergent. Dry with
compressed air or allow to air dry completely.
7. Inspect the crankcase ventilation hose for cracks or deterioration. Replace if necessary.
8. Install the flame arrestor, sealing washer, and locknut. Torque the flame arrestor
locknut.
Description Nm lb. in. lb. ft.
Flame arrestor nut 12 106
9. Connect the crankcase ventilation hose to the fitting on the flame arrestor and valve
cover.
Positive Crankcase Ventilation Valve (PCV)
CHANGING
IMPORTANT: Use only Mercury MerCruiser replacement parts to ensure compliance with
emission regulations.
NOTE: On V6 models the PCV valve is non‑serviceable and is an internal component of
the valve cover.
To Next Page
Loading...
Need help?
General