Mitsubishi — Bleeding fuel system
Maintenance
From a Mitsubishi operator's manual — check it applies to your exact model before use.
Applies to: Mitsubishi S16R-Y1PTA-2 engine
Before you start
- Wipe off spilled fuel thoroughly; spilled fuel is a fire hazard.
- Do not close all air vent plugs before locking the priming pump cap.
Procedure
- Loosen the air vent plug on the fuel filter intake for the left bank cylinder about 1.5 turns.
- Turn the priming pump cap counterclockwise to unlock, and prime the fuel filter.
- When fuel from the air vent plug is free from air bubbles, stop priming and tighten the plug to specified torque.
- Loosen the air vent plug on the fuel filter outlet about 1.5 turns and bleed as above.
- Bleed the fuel filters for the right bank cylinders the same way.
- Loosen the air vent cock on the fuel injection pump about 1.5 turns.
- Prime until fuel flow is free from bubbles, lock the priming pump cap and tighten the air vent plug.
- Repeat the same procedure for the fuel injection pump on the other side.
Specs & values
- Air vent plug torque: 7.8 to 9.8 N-m (0.8 to 1.0 kgf-m) [5.7 to 7.2 lbf-ft]
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.