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1.2L REVOTRON ENGINE
15
'Tapping' or 'ticking' noise from
the top end of the engine
Fuel
injectors
worn
excessively
Fuel injectors will make some
ticking noise. Replace fuel injectors
if not putting out enough fuel to
cylinders.
Excessively worn camshaft
Inspect camshaft. lobes and runout
for excessive wear. Replace as
necessary.
Valve springs, tappets, or
rocker arms worn
Inspect valve train components;
replace as necessary.
5. Exhaust System
Condition
Possible Cause
Remedy
Engine emits white smoke from
tailpipe.
Obstructed air filter or air Inlet
Clean or replace air filter or Inlet.
Head gasket leaking coolant
into combustion chamber
Inspect engine oil for coolant and
perform engine compression test.
Engine cylinder head or block
cracked
Inspect engine oil for coolant and
perform engine compression test.
Engine oil or other substance
on exhaust manifold
Inspect exhaust manifold for
foreign material.
Improper
grade
or
contaminated fuel
Rush fuel system with fresh, clean,
fuel of the correct type. Replace
fuel filter.
Mix of oil and water in oil
cooler
Check for oil and water mix up in
oil cooler. Flush and clean.
Engine emits blue smoke from
tailpipe.
Worn or damaged valve
guide seals
Remove rocker arm cover and
inspect valve guide seals. Replace
as necessary.
Engine crankcase overfilled
with oil
Check oil level; drain oil as
necessary.
Worn
I
damaged piston
ring(s) or cylinder bore,
permitting oil blow-by
Perform engine compression test
and/or leak-down test.
Head gasket leaking oil into
combustion chamber
Inspect engine coolant for oil and
perform engine compression test.
Engine emits black smoke from
tail pipe.
Excess carbon deposits in
combustion chamber
Remove carbon deposits in
combustion chamber using a
commercially available cleaner
Excess
fuel
entering
cylinder(s)
Check lambda/O2 and other
engine
sensors
for
proper
operation.
Test fuel injectors for proper
operation or leakage.
Check the fuel and emissions
system for proper operation.
Exhaust rubber hanger wear /
crack.
Ageing of rubber hanger
Check the Exhaust rubber hangers
& replaced if found crack / damage
or wear.