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    <div class="moz-cite-prefix">The original sender/bi-metal gauge
      combination of this kind should work fine and is reasonably
      accurate. The earlier coil gauge is a different matter. It does
      not really give a steady reading. You cannot mix the sender for
      the coil gauge with the bi-metal gauge and v.v. <br>
      The sender can have the rare fault with earthing or a broken coil
      but it is easily replaced. Another often overlooked problem is the
      10V voltage stabiliser that serves the fuel gauge and the
      temperature gauge. This is a small metal box usually attached to
      one of the instruments. The bi-metal keeps the average voltage at
      10V. It is not very stable but fairly durable. If faulty it can
      better be replaced by a solid state device. If both temperature
      gauge and fuel gauge are erratic, replace the voltage stabiliser.<br>
      Kees Oudesluijs<br>
      <br>
      <br>
      Op 28-11-2017 om 22:27 schreef Roger Grace:<br>
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                          <div>For interested listers ...</div>
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                                              <div>Ever since I acquired
                                                my BJ8 I have been
                                                frustrated with the fuel
                                                sender unit and gauge
                                                performance and
                                                reliability. Changed out
                                                the sender 2x and many
                                                hours fiddling with
                                                gauge adjustment that
                                                really with the dual
                                                attracted armature
                                                mechanism is a
                                                challenge. The MS sender
                                                ground strap solution
                                                helps if you have a
                                                problem with crud in the
                                                shaft bushes but doesn't
                                                help for bad sender coil
                                                winding or slider
                                                contact malfunction. </div>
                                              <div>So. I embarked on a
                                                mini science type
                                                project to do a full
                                                replacement with a
                                                capacitive electronic
                                                fuel probe and a modern
                                                stepper motor type of
                                                gauge. The biggest
                                                challenge was getting
                                                the probe to fit into
                                                the original sender unit
                                                opening. Our tanks have
                                                a 6 hole flange and
                                                modern cars use a 5 hole
                                                SAE bolt pattern and an
                                                adaptor wasn't feasible.
                                                In the end used a probe
                                                with 1/8 npt and remote
                                                electronics. With
                                                careful arrangement of
                                                the Al mounting flange
                                                that had to be made, was
                                                able to get the probe to
                                                also measure the fuel in
                                                the small well at the
                                                bottom of the tank
                                                before recording E. Next
                                                time would do slightly
                                                differently to account
                                                for the dead zone at top
                                                of the tank that caught
                                                me out.</div>
                                              <div>I had a Smiths look
                                                alike gauge built but
                                                with a modern 5V stepper
                                                motor drive. After
                                                numerous hiccups along
                                                the way, have now got it
                                                working satisfactorily
                                                ... after spending far
                                                too much time (and $) on
                                                it as well ! Will verify
                                                final accuracy on the
                                                road next Spring !</div>
                                              <div>See a few pix; if
                                                anyone wants more
                                                details - contact me
                                                directly.</div>
                                              <div>gauges are:
                                                original/new
                                                sm/aftermarket sm cheepo
                                                for testing </div>
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