Northern Lights M864 / OM864W — Injector Removal
Repair & overhaul · Fuel injectors
For the Northern Lights M864 / OM864W, from the Northern Lights operator's manual.
Applies to: Northern Lights M864
Before you start
- Do not use pry bars to remove injectors from the cylinder head.
- Overtightening can damage injectors.
Procedure
- Clean loose dirt from around the injectors and fuel lines.
- Relieve high pressure by loosening the delivery line flare nuts at each injector.
- Remove delivery lines as an assembly; do not remove the spacers. Cover line ends, injector inlets and injection pump outlets.
- Remove the return line retaining nuts, washers, and return line.
- Loosen and remove the injector.
- Remove the injector seat; cover the holes to prevent debris entering the cylinders.
Specs & values
- Injector torque 42 - 50 ft/lbs (5.8 - 6.9 k/gm)
- Return line bolts 18 - 25 ft/lbs (2.5 - 3.5 k/gm)
- Flare nuts 18.2 - 25.3 ft/lbs (2.5 - 3.5 k/gm)
Full service-parts list: Northern Lights M864 →
Source: Northern Lights operator's 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.