treebloke Posted November 27, 2013 Share Posted November 27, 2013 I have a 110 fire engine which will not pump water, I engage the pto and the impeller turns but nothing comes out the hose and yes there is water in the tank, any ideas?. Its a Godiva pump. Quote Link to comment Share on other sites More sharing options...
western Posted November 27, 2013 Share Posted November 27, 2013 is the water pick up in the tank clear & connected ? Quote Link to comment Share on other sites More sharing options...
ejparrott Posted November 27, 2013 Share Posted November 27, 2013 Is it a self priming pump? Quote Link to comment Share on other sites More sharing options...
B reg 90 Posted November 27, 2013 Share Posted November 27, 2013 Is the impeller turning? If so then it will pump is flooded with water. However it needs to be flooded with a clear suction line from the tank. I the pipe rubber lined and coming off/closing the flow? Valves open (handles or balls in the valves on the wrong way will make them 'look' open when closed. Make sure the tank is full and check you have water at the suction of the pump. Then try again. However don't run it dry to mutch as the wear rings may pick up. Adrian Quote Link to comment Share on other sites More sharing options...
treebloke Posted November 27, 2013 Author Share Posted November 27, 2013 is the water pick up in the tank clear & connected ? yes Is it a self priming pump? I am afraid I don't know the difference but I would assume it is Is the impeller turning? If so then it will pump is flooded with water. However it needs to be flooded with a clear suction line from the tank. I the pipe rubber lined and coming off/closing the flow? Valves open (handles or balls in the valves on the wrong way will make them 'look' open when closed. Make sure the tank is full and check you have water at the suction of the pump. Then try again. However don't run it dry to mutch as the wear rings may pick up. Adrian The impeller turns, valves are open, water is at the impeller but it will not pump it out, it dribbles out. I took the cover off the impeller thinking I would find some thing wrong but it all seems fine in there. Quote Link to comment Share on other sites More sharing options...
Team Idris Posted November 28, 2013 Share Posted November 28, 2013 Sounds like it needs filling with water first to me? We often primed 3" diaphragm pumps. Water is way thicker and heavier than air, so most pumps need head, or a good filling. Quote Link to comment Share on other sites More sharing options...
ejparrott Posted November 28, 2013 Share Posted November 28, 2013 A self priming pump will literally start pumping as soon as there's water at the suction hose, whereas a pump that isn't either needs the pump to be lower than the water source so that it fills with water naturally, or you need to fill the pump case manually just before you start the pump. I'm afraid I don't know whether its self priming or not. Quote Link to comment Share on other sites More sharing options...
tacr2man Posted November 28, 2013 Share Posted November 28, 2013 IIRC the godiva was a developement of the coventry climax , and will need priming , and it doesnt take much air leak on the suction hoses to loose the prime . Pumping using the onboard tank should be pretty straight forward , just check that you dont have a leak on the inlet side , and prime well and of you go . HTSH Quote Link to comment Share on other sites More sharing options...
treebloke Posted November 28, 2013 Author Share Posted November 28, 2013 IIRC the godiva was a developement of the coventry climax , and will need priming , and it doesnt take much air leak on the suction hoses to loose the prime . Pumping using the onboard tank should be pretty straight forward , just check that you dont have a leak on the inlet side , and prime well and of you go . HTSH with water in the on board tank, the valves open and pump pto in gear you can actually hear the water swishing around the impellor, it just doesn't seem to pick up suction. I will take another look to see if theres anyway to prime it manually? Quote Link to comment Share on other sites More sharing options...
ejparrott Posted November 29, 2013 Share Posted November 29, 2013 Is there an air bleed on the top of the impellor housing? Have similar issues on occasion with a self primping coolant pump at work, usually its an air lock. Quote Link to comment Share on other sites More sharing options...
Phil Hancock Posted November 29, 2013 Share Posted November 29, 2013 Is the water tank above pump outlet level? if it is with the tanks full, the supply valve open and the tank should gravity feed thro the pump when the branch valve is opened even with the pump not turning as its a centrifugal pump not a displacement pump. Do the branch valves actually open when the handles are turned to open? Quote Link to comment Share on other sites More sharing options...
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