SERVICE MANUAL NUMBER 26
TROUBLESHOOTING
Miscellaneous
Location / Noise
Possible Causes
A. Advanced timing
B. Low octane fuel
Engine spark knock
C. Engine running hot
D. Carbon deposits in engine
A. Wrong ignition timing
B. Carburetor set too lean
C. Faulty accelerator pump
D. Vacuum leak
Popping through carburetor
E. Valve adjustment
F. Valve timing
G. Burned or stuck valve
A. Vacuum leak
B. Leaking exhaust (manifolds or pipes)
C. Loose cylinder heads
D. Blown head gasket
Hissing
A. Vacuum leak
Whistle
B. Dry or tight bearing in an accessory
A. Leaking high tension lead
B. Cracked coil tower
Sparks jumping
C. Cracked distributor cap
A. Drive belt slipping
Squeaks or squeals
B. Dry or tight bearing in an accessory
C. Parts rubbing together
A. Exhaust shutters
Rattling in exhaust pipe area
Index
90-861329--1
MARCH 1999
Page 1C-25
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 5.0 out of 5.0 based on 6 product reviews. Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good
great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.
Great resource. Excellent information provided.
Need help to install automate choke
Need help to instal automate choke