<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body><div><div style="font-family: Calibri,sans-serif; font-size: 11pt;">No Bob it is an electrical solution.<br>All the little wire does is provide a solid electrical path between the float arm and the body which is part of the circuit to the gauge.<br>It turns out that the "jiggling" of the needle is caused by the circuit making and breaking at the arm pivot probably because of a build up of fuel "varnish" on the bearing surfaces.<br>I intend to do a blog post with a video...<br>When I can find the time.<br><br>Michael S<br>BN1 #174</div></div><div dir="ltr"><hr><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">From: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;"><a href="mailto:rchaskell@earthlink.net">Bob Haskell</a></span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Sent: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;">26/08/2015 6:16 p.m.</span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">To: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;"><a href="mailto:michaelsalter@gmail.com">Michael Salter</a>; <a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a></span><br><span style="font-family: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Subject: </span><span style="font-family: Calibri,sans-serif; font-size: 11pt;">Re: [Healeys] Gas Gauge</span><br><br></div>Michael,<br><br>Do you think the link you added helps from an electrical point of view, <br>or from motion/vibration point of view? I'm thinking the latter - less <br>bounce, less movement across the wire wound resistor - less motion of <br>the gauge needle.<br><br>Cheers,<br><br>Bob Haskell<br>AHCA 3000 Mk I registrar<br>http://www.ciahc.org/registry_3000mk1.php<br><br>On 08/26/2015 07:27 AM, Michael Salter wrote:<br>> Actually a Healey fuel gauge can be made to work very accurately. The<br>> gauge in my 100 is as steady as a rock and a very accurate indicator of<br>> the tank contents.<br>> The only change I made was to add a tiny connecting link between the<br>> float arm and the body of the gauge sender as in the attached pic.<br>> Prior to doing this I had no idea that a gauge of this type could work<br>> so well.<br>><br>> Michael S<br>> BN1 #174<br>><br>> On Wed, Aug 26, 2015 at 1:18 AM, John Spaur <jmsdarch@sbcglobal.net<br>> <mailto:jmsdarch@sbcglobal.net>> wrote:<br>><br>> Yes! Will you ever be able to adjust it so it works even remotely<br>> close to<br>> accurate? I don't think so. There are many posts covering issues<br>> with the<br>> fuel gauge and tank unit. My gauge and sender were "calibrated" by a<br>> couple<br>> of shops. The sender is a restored original. Afterwards, it would still<br>> stick on full, then when over half a tank was used it would drop to 1/2,<br>> then 1/4 and stop.<br>><br>> I finally calibrated my gauge, with a little more success than the<br>> professionals, using the calibration unit in this link:<br>> http://mgaguru.com/mgtech/electric/fg_01.htm BTW, I pulled the<br>> sender out of<br>> the car and calibrated it on the bench. You will need to approximate the<br>> high and low limits which are determined by the depth of the petrol<br>> tank.<br>><br>> Be warned, it still is almost fruitless. I believe the problem is<br>> caused by<br>> how the fuel gauge T and B coils line up with the armature. The fuel<br>> gauge<br>> needle is connected to the armature and swings based on the magnetic<br>> current<br>> supplied by the sending unit. Over the years the coils have tilted and<br>> cannot be properly aligned with the armature when the nut is<br>> tightened. This<br>> throws off the adjustment.<br>><br>> Let me know how it goes.<br>><br>> Regards,<br>><br>> John Spaur<br>> '62 BT7<br>><br>> _______________________________________________<br>> Support Team.Net http://www.team.net/donate.html<br>> Suggested annual donation $12.75<br>> Archive: http://www.team.net/archive<br>> Forums: http://www.team.net/forums<br>><br>> Healeys@autox.team.net <mailto:Healeys@autox.team.net><br>> http://autox.team.net/mailman/listinfo/healeys<br>><br>> Unsubscribe/Manage:<br>> http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com<br>><br>><br>><br>><br>> --<br>> /If you can't fix it with a hammer, you've got an electrical problem./<br>><br>><br>><br>> _______________________________________________<br>> Support Team.Net http://www.team.net/donate.html<br>> Suggested annual donation $12.75<br>> Archive: http://www.team.net/archive<br>> Forums: http://www.team.net/forums<br>><br>> Healeys@autox.team.net<br>> http://autox.team.net/mailman/listinfo/healeys<br>><br>> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/rchaskell@earthlink.net<br>><br></body></html>