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How Hot Should A Fuel Pump Get...?

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    How Hot Should A Fuel Pump Get...?

    I've been experiencing running problems over the last few days (in so much as it doesn't...).

    Well it starts, but after a short period, it stops again.

    I've traced it to the fuel pump - a gentle tap and it 'ticks' back into life, and you can see the fuel level in the fuel filter rise.

    Although I 'broke down' 5 times on my journey to work this morning, at least it was a quick, albeit temporary, fix to continue my journey...:?

    However, I also noticed the fuel pump was very hot to the touch. Almost to hot to touch. Surely not a good thing, what with the fuel and all...

    Anyway, does anyone know:

    a) should the pump get this hot - I suspect not
    b) would an overhaul kit resolve my issues or am I looking at a new pump
    c) removing the end of the pump and liberally spraying the electrics/mechanism with WD40 got me to work. I might have it fixed (?) - journey home will tell I guess.

    Just off for a few laps of the office car park now...

    Roger

    #2
    imported post

    Roger

    My pump certainly gets warm, but I wouldn't describe it as 'hot'. If it gets too hot, vapourising fuel in the pump will cause it to cavitate and you'll come to a spluttering halt. If your existing pump is of unknown vintage, for peace of mind, I'd be inclined to go for brand new SU electronic pump, but overhaul kit is probably a third of the price.

    Comment


      #3
      imported post

      At the risk of asking something stupid, what is the difference between the 'original' pump and the newer electronic pumps (apart from price...)?

      Mine is original, I assume, as it clicks. But it is electricas in wires go to it...




      Comment


        #4
        imported post

        Usually when the fuel pump sticks it can be revived by cleaning the points and resetting, on a slow afternoon I got four non working pumps out of that spares box we all have, and an hour or so later they were all working again Follow the rebuild and resetting procedure in the operations manual and you should be fine. I would try a clean and reset first, before buying a rebuild kit.

        What is the difference in the electronic pump? It costs lots more and when it don't work you cannot fix it yourself! :?
        Standard stag thrashed and enjoyed, Nissan Murano ( very underrated, very thirsty, very fast)

        Comment


          #5
          imported post

          Convincing arguement...!!

          Guess that's Saturday sorted then.

          Appreciate your comments.

          Roger

          Comment


            #6
            imported post

            Chris810 wrote:

            What is the difference in the electronic pump? It costs lots more and when it don't work you cannot fix it yourself! :?
            An alternative view could be.....if you had an electronic pump (like the one inevery modern car) you wouldn't have broken down 5 times on your way to work.


            Comment


              #7
              imported post

              Having tried and failed to get Chris Liles going at national day I would much prefer to have a pump I can understand and fix, not one which either works for 1000 years or doesn't and is then scrap. I can fiddle with the old pump and get it going again you can't do that with the electronic one.

              Luddites Rule!
              Standard stag thrashed and enjoyed, Nissan Murano ( very underrated, very thirsty, very fast)

              Comment


                #8
                imported post

                I don't trust either of them. One's notoriously unreliable and the other can't be fixed if it fails (and they do).

                I always have a spare in the boot.

                Pete

                Comment


                  #9
                  imported post

                  Just a final update to close this post, I didn't completely strip the pump down, but I removed the plastic end cover and gave the exposed parts a liberal spray with WD40.

                  Touch wood, this has resolved my woes, but time will tell how permanently...

                  I now listen for the click when I turn on the ignition - this was my first warning - no click.

                  Also, the pump is not anywhere near as hot now - I'm assuming with the contacts failing to open, this was causing the heating.


                  Comment

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