John Deere — Install Electronic Injectors (EIs)
Repair & overhaul
From a John Deere service manual — check it applies to your exact model before use.
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Before you start
- Do not get oils in high pressure fuel passage or sealing surfaces.
- Do not twist the top of the injector during installation.
Procedure
- If injector is re-installed, replace O-ring and combustion sealing washer.
- Lubricate O-ring with petroleum grease.
- Carefully insert injector with hold down clamp until it pops into place.
- Lubricate side feed tube fitting O-ring with petroleum grease.
- Install side feed tube with the small end toward injector.
- Hand tighten hold down clamp screw.
- Torque side feed tube fitting to 5 N•m (first torque).
- Torque hold down clamp screw to 47 N•m.
- Torque side feed tube fitting to 35 N•m (second torque).
- Connect HPCR delivery line to side feed tube fitting and HPCR; torque to 27 N•m.
- Apply LOCTITE 222 to injector studs; install wiring and retaining nuts, torque to 2 N•m.
- Calibrate the ECU for proper electronic injector fueling.
- Install rocker arm cover with vent tube.
Specs & values
- Injector hold down clamp screw—47 N•m
- Second torque - side feed tube fitting—35 N•m
- HPCR delivery line fitting—27 N•m
- Injector solenoid wire retaining nut—2 N•m
Source: John Deere service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.