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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>If this works as intended, my comments are inserted in red font.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Steve Byers<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>HBJ8L/36666<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>BJ8 Registry<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>AHCA Delegate at Large<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Havelock, NC USA<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p> </o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Healeys [mailto:healeys-bounces@autox.team.net] <b>On Behalf Of </b>ph<br><b>Sent:</b> Tuesday, May 16, 2017 6:06 PM<br><b>To:</b> healeys@autox.team.net<br><b>Subject:</b> [Healeys] Carb tsunami<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div id=divtagdefaultwrapper><p><span style='font-family:"Calibri","sans-serif";color:black'>We are working on my early phase 2 BJ8. Very standard car.very standard fuel pump and system.<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>So, we've noticed that petrol was initially seeping out of the front carb, HD8. Then the seepage seemed to get worse, almost as we looked at it. The leak is on the front carb and the fuel seems- it's not easy to be sure- it seems to be coming out from where the choke cable hits the lever. Given sufficient time and particularly a few attempts to start the car, then the fuel comes out of the manifold overflow pipe. Plenty of it too.</span><span style='font-family:"Calibri","sans-serif";color:red'> The diaphragm is probably cracked and leaking. If you are going to change one, you may as well change both of them.<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>Some observations:-<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>1) both of the floats are good. 100%</span><span style='font-family:"Calibri","sans-serif";color:#002060'>. </span><span style='font-family:"Calibri","sans-serif";color:red'>If the floats spring a leak, they will fill up with fuel and sink to the bottom of the float chamber. Then you will have fuel coming out of the overflow pipes.<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>2) no fuel at all ever comes out of the float chamber overflow pipes</span><span style='font-family:"Calibri","sans-serif";color:#002060'> </span><span style='font-family:"Calibri","sans-serif";color:red'>This only happens if the needle valve does not shut off the flow of fuel into the float chamber, which can happen if the needle valve leaks, or the float sinks to the bottom of the float chamber.</span><span style='font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>3) the connections at the banjos are sound.no leaks there<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>4) the jets??I don't know, are they Grose? They are kind of octagonal in their long profile. They have a little spring inside, with traditional cone shape at the top and little short, spring loaded, needle sticking out of the bottom. One of these things appears to be white nylon/plastic plus brass and the other appears to be some low grade silver coloured alloy. Both springs appear to be functional and both jets can entirely stop fuel coming out. (ie when I close them/push them home by hand). But we know nothing of these things. Never seen one before.</span><span style='font-family:"Calibri","sans-serif";color:#002060'> </span><span style='font-family:"Calibri","sans-serif";color:red'> What you describe is the typical nylon-tipped needle to shut off fuel flow to the carbs. They are not Grose Jets, which have balls to shut off the flow.</span><span style='font-family:"Calibri","sans-serif";color:#002060'> </span><span style='font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>5) Not withstanding my suspicions of these seemingly complex little jets, we think they are correctly setup. They are not dropping so far that they can jam. No, we think that the jets are probably, note probably!!, OK.</span><span style='font-family:"Calibri","sans-serif";color:#002060'> </span><span style='font-family:"Calibri","sans-serif";color:red'>The jets of the carbs are the brass gizmos that the needle attached to the big piston fits into. What you are referring to is the port in the float chamber cap that the needle valve closes off to shut off the flow of fuel into the float chamber.<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>6) My uncle, who is over from England, is more used to HS4s and Webers but he is wondering if the problem could be from the diaphragm. If it splits, that's it, right? Fuel in the manifold, fuel on the floor??</span><span style='font-family:"Calibri","sans-serif";color:#002060'> </span><span style='font-family:"Calibri","sans-serif";color:red'>I think your problem is a split/cracked diaphragm.</span><span style='font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'>We'd really appreciate your accumulated wisdom. If we're to get the parts over from the UK, we've got to order them yesterday!!<o:p></o:p></span></p><p><span style='font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:black'>Pierre-Henri <o:p></o:p></span></p></div></div><div id=DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellpadding=0 style='border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=55 style='width:41.25pt;border:none;padding:9.75pt .75pt .75pt .75pt'><p class=MsoNormal><a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0in;text-decoration:none'><img border=0 width=46 height=29 id="_x0000_i1025" src="cid:image001.jpg@01D2CE7E.A2F71A70" alt="Image removed by sender."></span></a><o:p></o:p></p></td><td width=470 style='width:352.5pt;border:none;padding:9.0pt .75pt .75pt .75pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#41424E'>Virus-free. <a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><span style='color:#4453EA'>www.avg.com</span></a> <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>