Mitsubishi S6R S6R2 / S6R- S6R2 — Change fuel injection nozzle tip
Repair & overhaul · Fuel system - fuel injection nozzle
For the Mitsubishi S6R S6R2 / S6R- S6R2, from the Mitsubishi operator's manual.
Applies to: Mitsubishi S6R engine, Mitsubishi PS6 engine
Before you start
- Install a rubber cap on the injection port and intake opening to keep dirt out
Procedure
- Remove the rocker cover and remove the cramp from the fuel injection pipe.
- Remove the fuel injection pipe from the nozzle and remove the nozzle inlet connector.
- Remove the nozzle gland nut and pull out the nozzle using a nozzle remover.
- Secure the nozzle in a vice, remove the cap nut and loosen the adjusting screw with a driver.
- Remove the retaining nut and take the nozzle tip off.
- Install the new nozzle tip according to the pin on the nozzle.
- Tighten the retaining nut to the specified torque; apply oil to the nut.
- Adjust fuel injection start pressure and check spray conditions.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Retaining nut torque 186 ± 10 N-m
- Do not give shock to the end of the nozzle tip
- Do not use Mori Coat
Source: Mitsubishi 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.