SERVICE MANUAL NUMBER 24
TROUBLESHOOTING
Miscellaneous
Noise
Possible Causes
Advanced timing
Low octane fuel
Engine spark knock
Engine running hot
Carbon deposits in engine
Wrong ignition timing
Carburetor set too lean
Faulty accelerator pump
Vacuum leak
Popping through carburetor
Valve adjustment
Valve timing
Burned or stuck valve
Vacuum leak
Leaking exhaust (manifolds or pipes)
Loose cylinder heads
Hissing
Blown head gasket
Vacuum leak
Whistle
Dry or tight bearing in an accessory
Leaking high tension lead
Cracked coil tower
Sparks jumping
Cracked distributor cap
Drive belt slipping
Squeaks or squeals
Dry or tight bearing in an accessory
Parts rubbing together
Exhaust shutters
Rattling in exhaust pipe area
Index
90-861327--1
OCTOBER 1999
Page 1C-21
Product Specification
Categories | Mercury MerCruiser Manuals |
---|---|
Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 CID |
Model Year | 1998, 1999, 2000, 2001 |
Download File |
|
Document File Type | |
Copyright | Attribution Non-commercial |
Great performance engine.
Class 1