<div dir="ltr"><div>Johnnie -</div><div><br></div><div>I would suspect that the seal at the end of the piston assembly is leaking - a common failure that results in ineffective clutch but no leaking fluid. That seal is what is supposed to keep fluid (fluif) from being pushed back into the reservoir (and thus causes pressure to move the slave). Item 28 in this drawing:</div><div><br></div><div><a href="http://www.revingtontr.com/CatalogueImages/TR4/W.jpg">http://www.revingtontr.com/CatalogueImages/TR4/W.jpg</a></div><div><br></div><div>The seal (like a little cap) is a part of the usual rebuild kit.</div><div><br></div><div>Geo</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 31, 2015 at 6:40 PM, John & Pat Donnelly <span dir="ltr"><<a href="mailto:pdonnel1@san.rr.com" target="_blank">pdonnel1@san.rr.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" vlink="purple" link="blue"><div><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">Symptom - the clutch pedal fades in pressure to where's there is none. Observing the master cylinder fluid level in the reservoir, after depressing the pedal it rises as the pedal pressure fades, and almost overflows. When the pedal is released the fluid level goes back down to it's original starting level. Dot 4 brake fluid. Has HVDA transmission conversion. Fluid bled multiple times. Same results.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">What's happening to make the fluid level go up? <u></u><u></u></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">Johnnie<u></u><u></u></span></p><p class="MsoNormal"><span style="font-family:"Arial","sans-serif";font-size:10pt">'67 TR4A<u></u><u></u></span></p></div>
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