Magni RTH 4.18, Use And Maintenance Manual

Page: 115 / 127

MAINTENANCE 115
Cause Solution
Fuel priming pump defective
Check to make sure the pump provides the flow rate suitable
for the high pressure pump. Check the electrical connections.
Suction or discharge system obstructed
Visually inspect the suction and discharge, and remove any
obstructions present. Replace the air filter if necessary
Fault in one or more injectors Check the electrical connections.
Leaks in manifolds or in turbocompressor Check and correct leaks in the manifolds
Too many sealing washers installed under the
injectors
Remove the excess sealing washers
Incorrect adjustment of valve play Correct the adjustment
Compression not good in one or more cylinders Check the compression ratio
Engine – Does not reach the maximum rpm
Cause Solution
Speedometer defective
Check the engine speed using a manual speedometer.
Correct if necessary
Engine overload Check the presence of overloads due to faulty auxiliary parts
Fuel dirty or non conforming
SWITCH THE ENGINE OFF.
Replace the fuel filters.
Run the engine with correct fuel.
Wastegate valve actuator diaphragm cracked Repair or replace the turbocompressor
Leakage in fuel circuit
Replace the defective connections.
DO NOT try to carry out repairs.
Fuel supply obstructed
Check for blockage along the line.
Check the state of the filters and replace if necessary.
Fuel priming pump defective
Check to make sure the pump provides the flow rate suitable
for the high pressure pump. Check the electrical connections.
Fault in one or more injectors Check the electrical connections
Fuel high pressure pump fault Contact your dealer