Mitsubishi — Bleeding of Fuel System
Maintenance
From a Mitsubishi service manual — check it applies to your exact model before use.
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Before you start
- Wipe spilled fuel thoroughly; fire hazard.
- Lock priming pump cap securely by hand.
Procedure
- Loosen air vent plugs on fuel filters approx. 1.5 turns.
- Unlock priming pump cap and move up and down repeatedly.
- When fuel has no air bubbles, tighten air vent plugs.
- Loosen air vent cock on fuel return pipe approx. 1.5 turns.
- Operate priming pump until no air bubbles appear.
- Tighten air vent cock and lock priming pump cap.
Source: Mitsubishi 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.