Robert Boardman Posted April 7, 2013 Share Posted April 7, 2013 (edited) Hi Has anyone tested a fuel pump by just puting pump inlet pipe into a tub of water. Reason i ask is my fuel pump went faulty but after spray some wd40 into it i could hear it running again, but still no output of fuel. So i tested it by putting the inlet into some water but even though i can hear the motor running it still doesn't spray water out of the outlet. Does it need tank presure to startup? I tried filling the inlet and outlet pipe full of water but still no output. cheers Rob Edited April 7, 2013 by Robert Boardman Quote Link to comment Share on other sites More sharing options...
mantadoc Posted April 7, 2013 Share Posted April 7, 2013 The standard injection pump has a fan impellor on the spindle and the fuel washes over the workings and cools it. I would not run them with water. If the pump is actually spinning sounds like the fan impellor is loose on the spindle or jammed and slipping. Now arranty of any kind implied or given and no liability accepted. Quote Link to comment Share on other sites More sharing options...
Robert Boardman Posted April 7, 2013 Author Share Posted April 7, 2013 Hi This one hasn't got a fan. Had the pump apart and it has four short steel barrels that rotate around a steel circle which were jammed. The pump looks like this one on ebay http://www.ebay.co.uk/itm/300840601750?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649 Quote Link to comment Share on other sites More sharing options...
Exclusive Opel Posted April 7, 2013 Share Posted April 7, 2013 Here's what's inside: This one decided to leak when it snowed a couple of years ago. Laying on snow under a car with numb fingers is no fun. Neighbours thought I was nuts! Quote Link to comment Share on other sites More sharing options...
Robert Boardman Posted April 7, 2013 Author Share Posted April 7, 2013 (edited) I bet it wasn't april though. lol That pump is the same. Managed to get mine open and repair the plastic bit that drives the pump. Am sure mines working now. Hasn't anyone tried a pump on the bench in some liquid and a voltage supply? Or is their anyone who has a pump that could try this test. Or even anyone know if you short the fuses out to get pump running in car with the fuel line disconnected where it come through the wing, does fuel squirt out constantly. cheers so far Edited April 7, 2013 by Robert Boardman Quote Link to comment Share on other sites More sharing options...
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