- Knocking in one or more cylinders
- The engine gets very hot
- Power drops
- Thick black smoke
- Increased fuel consumption
Removing
Clean the injection lines with fuel. Disconnect them from the pump and injectors.
Remove the fuel return lines. Unscrew the nozzle holder.
Shine waved washer, heat insulator and copper o-ring.
Clamp the nozzle holder in a vise through the pads of soft material. Remove nozzle.
Check the condition and position of the nozzle needle, wear and damage to the nozzle. Remove carbon deposits with a wooden spatula.
Attention: Do not use for cleaning sharp scratching objects. Do not confuse injectors.
The needle should be freely inserted into the nozzle, under the influence of its own weight.
Installation
Assemble nozzles and holders together.
Install new O-rings in the injector holes in the head of the block.
Install insulators with a smaller diameter towards the head of the block.
Install o-rings on insulators.
Install the washers on the insulators as shown in fig (arrow).
Fit injectors together with holders and tighten to 70 Nm.
Install fuel lines and tighten nuts to 25 Nm.
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