Top Mounted Flame Arrestor; Serpentine Drive Belt; Component Location - Mercury MerCruiser MCM 4.3L ALPHA Service Manual

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SERVICE MANUAL NUMBER 25

Top Mounted Flame Arrestor

1. Remove flame arrestor cover.
2. Remove crankcase ventilation hose from fitting on side of flame arrestor housing.
3. Remove flame arrestor.
4. Clean flame arrestor in solvent. Blow dry with compressed air.
5. Clean crankcase ventilation hose in solvent. Blow dry with compressed air.
6. Inspect crankcase ventilation hose for cracks or deterioration and replace if necessary.
7. Reinstall flame arrestor and crankcase ventilation hose.
8. Reinstall flame arrestor cover.

Serpentine Drive Belt

Component Location

Avoid possible serious injury. Make sure engine is shut off and ignition key is
removed before inspecting belt.
NOTE: Some models will have components arranged in a different order. All configurations
are not shown. Checking, replacing and adjustment procedures are the same.
Index
90-861328--1 NOVEMBER 1999
a -
Flame Arrestor
a
WARNING
76501
MAINTENANCE
Page 1B-23

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