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lift pump for penta diesel

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eric clubley View Drop Down
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Joined: 17 Apr 2011
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Post Options Post Options   Quote eric clubley Quote  Post ReplyReply Direct Link To This Post Topic: lift pump for penta diesel
    Posted: 30 May 2013 at 1:10pm
I've got a Volvo Penta 2003, 1989 and it has developed a problem - not creating enough suction. Hard to start; revs drop by 100-200 every so often when at 2500/2800. It won't tick-over it just stalls. Clean fuel, clean filters.
Air getting in or lift pump struggling?
Any thoughts, should I replace the pump?

thanks


eric
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George Isted View Drop Down
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Joined: 08 May 2009
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Post Options Post Options   Quote George Isted Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2013 at 5:46pm
Must be the time or year for lift pump failure as I replaced mine two weeks ago on a Yanmar 2GM.  Justtest you take it off and check to see the the diaphragm has a small tear or hole.  You may need new copper washers when you put it all back together.
George Isted
www.solentboatbutler.co.uk
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Co32 Class Measurer and ex Class Captain.
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Keny View Drop Down
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Post Options Post Options   Quote Keny Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jun 2013 at 6:11pm
I dont have your engine but air ingress usually makes the revs increase in a diesel not decrease. Why not service the lift pump?
keny
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