Mitsubishi Delica fuel system

Note: this page will at some point contain pictures and info - this is a scratchpad at the moment to accumulate information.

Engine 4M40 Fuel pump Zexel 104741-3323 or ME201700

Pump internal fuel pressure (and therefore advance) is controlled by "pulling electromagnet" (green capped solenoid at back of pump).

Manufactured by Italian company TOR, believe their part number is 246650-5820, Zexel part 146650-5820, Bosch 9461615275.

Diesel Bob price is £75+VAT with £3 P&P, part number unknown. Picked up locally for £48.50+VAT.

However, one on the pump says 76 on the side and has two drilled ports on the loop side (three total) Part above has 58 on the side and four drilled ports on the loop side (five total) - may retard injection timing.

Applying 12V closes the ports on the loop side.

Purpose in life is to advance injection timing from cold, and when up to temp return to normal. This advances the timing across the whole RPM range.

Also has cold start mechanism on side of pump, this gives extra cold idle, and advances the injection timing at lower RPM.