Table of Contents
Advertisement
TROUBLESHOOTING
Possible causes
Cylinder head and valve
mechanism
Timing gears
Camshaft
Pistons and connecting
rods
Crankshaft
Fuel system
Cooling system
Intake and exhaust
system
Incorrect oil viscosity
Improper fuel
Incorrectly fitted piping and hoses
Defective/incorrectly fitted alternator and other auxiliaries
11-8
Incorrect valve clearance
Defective cylinder head gasket
Worn valve and valve seat; carbon deposits
Weakened valve spring
Defective rocker shaft and bracket
Poor lubrication of rocker shaft bracket
Incorrect backlash in timing gears
Poor lubrication of timing gears and idler shaft
Excessive end play in camshaft
Worn camshaft
Worn/damaged piston ring groove(s)
Worn/damaged piston ring(s)
Worn piston pin and connecting rod small end
Excessive end play in crankshaft
Incorrectly fitted crankshaft pulley
Worn/damaged crankshaft pins and connecting rod bear-
ings
Worn/damaged crankshaft journals and main bearings
Supply pump faulty
Defective injector
Air trapped in fuel system
Malfunctioning cooling system components
Loose/damaged V-belts
Clogged air cleaner
Clogged muffler
Malfunctioning turbochargers
Symptoms
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Gr13E
O
O
O
Gr13A
O
Gr14
O
O
O
O
O
Gr15
O
O
O
Gr12
O
O
O
Reference Gr
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
