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ENGINE
22
SR.
NO.
COMPLAINT
CAUSE
REMEDY
4
Low com-
pression
pressure
•
Leakage of compression from engine
valves
•
Cylinder head gasket blown between
two cylinders
•
Leakage of compression past piston
ring butt clearance (blow by)
•
Leakage of compression due to ex-
cessive cylinder bore/ring wear
(excessive blow by).
•
Repair valve seats/Replace valve
seat inserts
•
Replace gasket
•
Replace piston rings
•
Overhaul the engine
5
High Engine
Oil Consump-
tion
•
Oil leakage from:
a) Camshaft front oil seal
b) Camshaft rear oil seal
c) Sump gasket
d) Oil cooler
e) Oil filter
f) Crankshaft head front oil seal
g) Cylinder head cover gasket
h) Cylinder head cover war page
i) Oil seal on valve guide
j) Valve guide worn out
•
Excessive oil filling
•
Excessive piston ring butt/ Lateral
clearance
•
Excessive cylinder bore wear (Ex-
cessive blow-by)
a) Replace the oil seal
b) Replace the oil seal
c) Tighten sump screws/Replace
gasket.
d) Tighten the fastener / Replace oil
cooler.
e) Tighten the filter / Replace oil filter
f) Replace the oil seal.
g) Replace the gasket
h) Replace cylinder head cover
i) Replace the oil seal*
j) Replace the valve guide
•
Fill the oil to correct level
•
Replace piston rings
•
Repair/replace the engine
6
Low Engine
Oil Pressure
•
Defective instrument cluster
•
Low oil level in sump
•
Oil pump seized:
a) Seized
b) Oil pump relief valve stuck in
open position
•
Main bearing /connecting rod bear-
ings & journals excessively worn out
•
Bearing shells peeled off
•
Oil strainer inside oil sump broken
•
Wrong grade of oil
•
Diesel dilution
•
Check DTC and rectify
•
Top-up
a) Replace
b) Repair/Replace the valve and
affected engine parts
•
Replace affected parts
•
Replace the bearing shell and af-
fected parts, if any
•
Fill in correct grade of oil
•
Rectify