Mazda B-Series 1997 Workshop Manual page 134

TROUBLESHOOTING GUIDE
Insufficient power
Problem
lnsufficient compression
Compression leakage from valve seat
Seized valve stem
Weak or broken valve spring
Damaged cylinder head gasket
Cracked or distorted cylinder head
Sticking, damaged, or worn piston ring
Cracked or worn piston
Damaged push rod(s)
Damaged tappet
Malfunction of fuel system
Possible Cause Action Page
Malfunction of ignition system
Others
Slipping clutch
Dragging brakes
Wrong size tires
Repair
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Refer to Section FT
Refer to Section G
Refer to Section H
Refer to Section P
Refer to Section Q
Abnormal
combustion
Engine noise
Malfunction of engine-related components
Sticking or burnt valve
Weak or broken valve spring
Carbon accumulation in combustion chamber
Damaged push rod(s)
Damaged tappet
Replace
Replace
Eliminate carbon
Replace
Replace
I
Malfunction of fuel system
j
Refer to Section FT
I
-
Malfunction of ignition system
1
Refer to Section G
Crankshaft- or bearing-related parts
Excessive main bearing oil clearance
Main bearing seized or heat-damaged
Excessive crankshaft end play
Excessive connecting rod bearing oil clearance
Connecting rod bearing seized or heat-damaged
Replace or repair
Replace
Replace or repair
Replace or repair
Replace
Piston-related parts
Worn cylinder
Worn piston or piston pin
Seized piston
Damaged piston ring
Bent connecting rod
Replace or repair
Replace
Replace
Replace
Replace
Valves or timing-related parts
Broken valve spring
Excessive valve guide clearance
Damaged push rod(s)
Damaged tappet
Replace
Replace
Replace
Replace
1
Malfunction of cooling system
1
Refer to Section E2 -
I
I
Malfunction of fuel system
1
Refer to Section FT
1 - 1
Others
Malfunction of water pump bearing
Worn drive belt
Malfunction of generator bearing
Exhaust gas leakage
Loose timing belt
Worn timing chain
Refer to Section E2
Replace
Refer to Section
G
Refer to Section FT
Replace or repair
Replace