Quote Originally Posted by Dieseldude View Post
Of course, we often see this condition.

Atmospheric air is getting into the injection pump, hoses and gaskets, or filter assembly when engine is not running. Check for worn sealing gaskets or loose fittings.
I think I found where the air leak is. I disassembled the feed pump assembly and tried pumping with the inlet port closed. To my surprise, I barely felt any suction and the hand pump will just return to its original position, indicating a possible air leak. Removed the fuel filter, covered the holes and pumped, same thing. I went to an auto supply just to check how a brand new feeder pump behaves and presto, the pump will stay pressed down if I pumped with the inlet port plugged. Bought the new feeder pump for P330 pesoses.

I checked the old feeder pump after disassembly and to my horror, the diaphragm was ripped! It was probably destroyed when the gas station mechanic started pumping after I had the filter replaced a month or so ago. And as per my observation, the pump's palm rest is stuck to the shaft (which should normally turn without moving the shaft) so a slight circular movement of the palm while pumping might have ruined the diaphragm, no thanks to the gas station mechanic.

Installed the new feeder, transferred the fuel filter (since it's relatively new and had no water when I drained it), reassembled the hoses, clamped everything tightly and started pumping. When the pump got heavy, I bled the system on all 4 injectors including the feeder's bleed screw. After 5 seconds on the glow plug, cranked and it started off with one click. Idled the engine for around 15 minutes then turned the engine off.


Tried starting later after the sun went down (approximately 7 hours from the last start) and it's still a one-click wonder. Will be observing in the later days if the problem is finally addressed. The joys of being able to fix stuff by one's self is priceless (aside from the pesoses saved on labor costs)


Thanks and more power Dieseldude!