Fuel pump lost prime
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=33370
Printed Date: November-17-2024 at 4:53pm
Topic: Fuel pump lost prime
Posted By: Chris9304
Subject: Fuel pump lost prime
Date Posted: April-18-2014 at 12:43pm
| Guys I have lost prime to my fuel pump and unable to get any gas to pump into my carb. This is after my brother in law overheated my boat. Don't think they are related as I did get it to run after I changed the thermostat and impeller. Thoughts on this would be great |
Replies:
Posted By: IAughtNaut
Date Posted: April-18-2014 at 1:04pm
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Did you flick it? ------------- bring the ruckus http://www.correctcraftfan.com/diaries/details.asp?ID=5347" rel="nofollow - 2000 Pro Air |
Posted By: phatsat67
Date Posted: April-18-2014 at 1:48pm
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More info? Boat? Fuel coming out of the accelerator pump nozzles when you pump the throttle? Symptoms? ------------- |
Posted By: backfoot100
Date Posted: April-18-2014 at 2:00pm
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More info would be nice. How are you so sure it's the fuel pump? Sure you have spark? What about compression? It overheated. How bad are we talking? Overheats can cause all sorts of issues that may manifest themselves long after the fact. Having it running after the impeller and thermostat change is a good sign though. ------------- When people run down to the lake to see what's making that noise, you've succeeded. Eddie |
Posted By: Chris9304
Date Posted: April-18-2014 at 7:20pm
| If I pump the throttle no fuel is being squirted from the needles. If you pour fuel into the carb it will start. It did run after the overheat but in the process of finding all of the cooling issues it ran out of gas. It is an 86 Nautique 351 motor. Boat has spark and will run just no fuel delivery. I have a lot of experience with carbs and fuel systems but less with engine driven fuel pumps |
Posted By: GlassSeeker
Date Posted: April-18-2014 at 7:54pm
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Pull the fuel line and see if the pump is pumping fuel. Turn it over it should squirt so be careful ------------- This is the life |
Posted By: gun-driver
Date Posted: April-18-2014 at 11:21pm
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You emptied your fuel line when you ran it out of gas. Pressurize your tank with an air compressor while someone cranks it. Or you can disconnect the fuel line after the filter then pressurize untill you get flow. |
Posted By: Chris9304
Date Posted: May-12-2014 at 10:51pm
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any new tricks i have replaced the water separator validated that everything else vent pipe etc is working but still not getting the fuel pump to prime. any other thought before i put a new fuel pump in it? thank you Chris |
Posted By: KRoundy
Date Posted: May-14-2014 at 5:41pm
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Sounds to me like you need a new fuel pump. That may have been the problem all along. ------------- Previous: 1993 Electric Blue/Charcoal Ski Nautique Current: 2016 Ski Nautique 200 Open Bow |
Posted By: JoeinNY
Date Posted: May-14-2014 at 5:52pm
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Put a vacuum pump on the fuel line, a brake bleeder available from the harbor freight should do it. There is an anti siphon valve on the top of that tank, which should be checked. If it were me I would first take that fuel hose off the pump, if it were full of gas then its not a problem with the pump, if it isn’t full of gas blow through it either with your mouth our a little compressed air, it should allow air through. If it does then move to the vacuum pump or try an external tank to see if the boat will run on that. But I wouldn’t replace the pump all haphazard like until I was convinced that the tank/antisiphonvalve/hose assembly was all acceptable. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |
Posted By: backfoot100
Date Posted: May-14-2014 at 6:29pm
+1 You gotta make sure that gas is even getting to the pump first. If you ran this dry and now the fuel filter/water seperator was changed, everything from the fuel tank all the way up to the fuel bowl is now potentially dry. I would fill the fuel bowl with gas before starting so as soon as the engine fires it'll charge the complete fuel line before the bowl runs out of fuel. Just like you would have to do the first time you started up an engine after a rebuild. ------------- When people run down to the lake to see what's making that noise, you've succeeded. Eddie |
JoeinNY wrote:Posted By: Chris9304
Date Posted: May-14-2014 at 8:30pm
| thanks i went ahead and changed the fuel pump out as i have a full tank of gas and also had pressurized the system with no luck. of course i had a dead battery from the last time i messed with it so it is currently on the charger and will update after the next test |
Posted By: jimsport93
Date Posted: May-14-2014 at 9:53pm
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Had a strange thing happen to me this past Sunday. Boat cranked and then died after my wife was backing her off the trailer. Cranked and cranked. Would not restart. Thought about my Pro Tec set up. Turned out that my spin on fuel filter/water separator had vibrated loose and was sucking air and loosing prime ( guess I had not over tightened after I had to put it in a vice to get it off last time). First time that has happened to me. Got her started after tightening it up. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=2798 - 93 Sport Nautique |
Posted By: kytom2
Date Posted: May-15-2014 at 12:21am
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Do you have a fuel shut off valve in your fuel line? If so could it have gotten turned to off? ------------- |