Cylinder Area; Camshaft Area - Mercury 305 CID Service Manual

Cylinder Area

Location
C li d C li d Cylinder area, may be confined to one cylinder C li d b b b
or found in more than one cylinder, timed to or found in more than one cylinder timed to
engine speed

Camshaft Area

Location
Camshaft area, front of engine, timed to one half C C h f h ft f f t f
engine speed engine speed
Camshaft area, center of engine, timed to one half C h ft t
engine speed engine speed
C h ft
Camshaft area, rear of engine, timed to one half
engine speed engine speed
Camshaft area, throughout engine, timed to one C h ft th
half engine speed half engine speed
Index
90-823225--1 1096
fi fi fi d d d li d li d li d
f i i ti i d t d h lf h lf
f i ti d t
f i ti d t h lf
h t i ti d t
Sticking valve
Carbon build-up
Connecting rod installed wrong
Bent connecting rod
Piston
Piston rings
Piston pin
Cylinder worn
Crankshaft timing sprocket
Timing chain
Fuel Pump
Valve Lifter
Cam Bearings
Fuel Pump
h lf
Valve Lifter
Cam bearing
Distributor gear
Valve lifter
Cam bearings
Loss of oil pressure
Valve lifters
Cam bearings
Possible Causes
Possible Causes
TROUBLESHOOTING - 1C-19