It's normal for the fuel filter to have an air bubble in the top half of it above the outlet pipe (assuming the filter is roughly horizontal) but this won't cause a problem. If there are little bubbles in the fuel coming in then it does sound like it could be sucking in air somewhere. Really it's just a case of looking closely at the fuel pipes, the rubber ones for splits and cracks and the metal ones for rust. You can't do a pressure test without dropping the petrol tank to get at the pipes on top of it.
Jim geoff ward wrote: > Hi Jim, > > Thanks for the reply, I hope it's not a duff pump. There is an inline > filter just before the pump, it does have air bubbles in it thou' when > the engine is running, is this normal? How would I find out if there > is an air leak in the fuel line. > > Regards Geoff. > > 2009/6/1 Jim Hearne <j...@quantums.info <mailto:j...@quantums.info>> > > > The one way valves in the fuel pump should normally stop the fuel > draining back to the tank. > So some thoughts: > > A duff new fuel pump. > Dirt/rust from the fuel tank getting under the valves in the fuel pump > stopping it shutting fully, is there a inline fuel filter and is it > before the pump. > A air leak in the fuel pipe before the fuel pump, this wouldn't leak > much if any fuel as it's under suction. > > Jim > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to quantumowners@googlegroups.com To unsubscribe from this group, send email to quantumowners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). -~----------~----~----~----~------~----~------~--~---
