citroen diesel air leak

[terence7556]

citroen xm 95 2.5 td, old workhorse.
fuel lines are taking in air. parked on level ground it has recently become difficult to start. turns over but will not fire unless i bleed air using the primer on the roto fuel filter which was chnged 2 wks ago. old seals crap fit and v.careful putting on new ones
someone at work said try parking downhill and gravity will keep the fuel in the lines.as daft as it sounds this works perfectly.it fires first turn of the key
where do i start to work out where the problem is? i hope its not the injection pump as these are not cheap

[pumpman]

It could be the primer on to of the fuel filter as the diaphram do perish and let air to fuel system

[terence7556]

nice one pumpman ill check it out

[pumpman]

have you found the problem on fuel system was it the primer pump?

[pumpman]

sorry if you spray wd40 over primer pump it sould cover the air leak
if it is the primer pump you should be able to pick up a second hand one from abreaker yard

[terence7556]

have,nt had a chance to find out as last wed some **** in hie 214 rover dropped a lense from his spectacles and in bending to pick up the lense,w/o stopping,swerved and sideswiped my car which is at a garage with a 90% chance write off.he wrote his own off and pushed my lovely reliable workhorse into the 307 behind
i was parked up, insured, taxed and i will lose out for some knob with glasses that would embaress eddie the eagle
i now know y people dont insure their cars, whats the point
the damage to my car is not that bad but the costs of new spare parts is killing it
thanks for your help anyway