<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Set up as in the photo the balance bar could bend or fracture if the pedal is pushed hard enough. If the unused master cylinder is filled with fluid its piston will not move at all so the balance bar between the two MC’s will be put under a lot of bending stress when the pedal is pushed — one piston moves and the other one doesn’t, and the pedal would move a lesser distance than if both cylinders are being used. If the unused MC is empty, the piston will easily bottom out, putting stress on the cross balance bar for the same reason as the other scenario. Since the pedal would move a much greater distance with no fluid in the unused MC, I assume it was left filled. Come to think of it, though, leaving the right ratio of air and fluid in the unused MC would allow it to behave like a spring and put a normal level of stress on the balance bar.<div class=""><div class=""><br class=""></div><div class="">Duncan</div><div class=""> <br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Dec 15, 2017, at 2:21 PM, Brad Eells via Fot <<a href="mailto:fot@autox.team.net" class="">fot@autox.team.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi Gang,<div class=""><br class=""></div><div class="">I am trying to understand what may have happened with the duel master set up and it's plumbing. </div><div class=""><br class=""></div><div class="">The front and rear circuits are both coming out of the right hand cylinder while the left hand cylinder is returning to itself. The car does have a prop valve for the rear brakes located in the cockpit.</div><div class=""><br class=""></div><div class="">One person suggested the the driver may have had a problem during a race weekend and simply re-plumbed to make it through a race weekend. The car was last raced in Sept 1976.</div><div class=""><br class=""></div><div class="">Should a line for each circuit simply go to each master cylinder? I have 2 new ones on order.</div><div class=""><br class=""></div><div class="">Your thoughts are appreciated!</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Brad</div><div class=""><br clear="all" class=""><div class=""><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div class=""><div style="font-size:12.8px" class=""><b class=""><font class="">Brad Eells</font></b></div><div style="font-size:12.8px" class=""><b class=""><font class="">Chino CA</font></b></div><div style="font-size:12.8px" class=""><b class=""><font class="">#35 DP 1962 Triumph TR4</font></b></div><div style="font-size:12.8px" class=""><b class=""><font class="">#76 FP 1969 Triumph Spitfire Mk3</font></b></div><div style="font-size:12.8px" class=""><b class=""><font class="">1965 Triumph TR4A IRS...for the road!</font></b></div></div><div style="font-size:12.8px" class=""><b class=""><font class=""><br class=""></font></b></div><div style="font-size:12.8px" class=""><b class=""><font class=""><span id="cid:ii_jb8cyy6q0_1605bd5ff9662a4a"><BCE_0044 (Large).JPG></span><br class=""><span id="cid:ii_jb8cyy721_1605bd5ff9662a4a"><BCE_0046 (Large).JPG></span><br class=""><br class=""></font></b></div><div class=""><br class=""></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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