Volvo Penta TAMD71B User Manual

56 AB Volvo Penta / Diesel Engine TAMD71B
12.3 Engine Coolant Temperature (ECT) too high
REMEDY
Fill engine with coolant and vent system as
shown in chap. 10.5.2
Install new thermostats
Replace the raw water pump impeller as shown
in chap. 10.5.4
Clean the insert as shown in chap. 10.5.3
Contact authorized service personnel
12.5 Not correct engine speed at wide open throttle (WOT)
REMEDY
If possible, reduce the load
Fit new fuel filters (pre-filter and/or fine filters).
Vent the system as shown in chap. 9.7.4
Clean the fuel tank Drain water from pre-filter
Fit new air cleaner filters/clean air cleaner filter
Check the rubber hose between the turbo and
the connecting pipe, plus other connections.
Contact authorized service personnel
Check that the ventilation ducts to the engine
compartment are not blocked
Clean the insert(s) as shown in chap. 10.5.3
Check that the exhaust system is not restricted
in any way
Get authorized service personnel to check the
injectors
CAUSE
• Engine overloaded
• Insufficient fuel flow
– fuel filters clogged (due to contaminants/
paraffin precipitation in the fuel as a result
of low outside temp.)
• Water in fuel
• Insufficient air flow to engine
– air cleaner filter clogged
– air leak between turbo and engine’s inlet
manifold
– faulty turbocharger
– poor engine compartment ventilation
• Charge air cooler (CAC) clogged
• Excessive pressure in the exhaust system
• Injector malfunction
REMEDY
Install new thermostats
12.4 Engine Coolant Temperature (ECT) too low
CAUSE
• Coolant level in engine too low (air in system)
• Defective thermostats
• Raw water pump (pump impeller) defective
• Heat exchanger/radiator core clogged
• Circulation pump malfunction
CAUSE
• Defective thermostats
12.2 Engine starts but stops again/runs unevenly
REMEDY
Vent the fuel system as shown in chap. 9.7.4
Open the fuel cocks
Fill with fuel/connect the correct fuel tank
Fit new fuel filters (pre-filter and/or fine filters).
Vent the system as shown in chap. 9.7.4
Fit a new air cleaner filter/clean air cleaner filter,
check ventilation to engine compartment
Install new pressure line(s)
CAUSE
• Air in fuel system
• Fuel starvation or no fuel
– fuel cocks closed
– fuel tank empty/wrong tank on line
– fuel filters clogged (due to contaminants/
paraffin precipitation in the fuel as a result
of low outside temp.)
• Insufficient air flow to engine
– air cleaner filter clogged
• Break in pressure line(s)

Volvo Penta TAMD71B Specifications

General

Brand	Volvo Penta
Model	TAMD71B
Category	Engine
Language	English