The first signs of malfunctions in the injectors appear as follows:
- Knocking in one or more cylinders.
- The engine gets very hot.
- The engine power drops.
- Extremely black strong exhausts.
- High fuel consumption.
Withdrawal
Thoroughly clean the fuel lines with fuel. Disconnect fuel lines from pump and injectors. Remove return lines. Unscrew nozzle holders.
Remove the wave washer, heat shield and copper O-ring.
Clamp the nozzle holder between soft metal vise jaws. Disassemble the nozzle.
Check the nozzle needle for wear and damage. Clean the nozzle from carbon deposits with a wooden spatula.
Attention. Never clean the nozzles or their needles with a wire, file or sanding paper. Clean each nozzle separately, avoid confusion with needles and nozzles.
The needle should slide in the nozzle under its own weight. She must move freely.
Installation
Assemble the nozzle and its holder.
Install a new O-ring into the sprayer hole in the cylinder head.
Install the heat shield so that its smaller diameter is on the side of the cylinder head, i.e. he must look down.
Lay the next copper O-ring on the thermal protection sleeve.
Insert a new corrugated washer into the heat shield. convex side (arrow) must be located on the side of the cylinder head, i.e. look down.
Screw in the nozzle with the holder and tighten to 7 Nm using a special wrench that you can make yourself.
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