<div dir="ltr">Hey friends.<div>Just wanted to give an update on the clutch thing.</div><div> I took some wise advice and sucked all the black crap out of the master cyl. then wiped it clean and ran about a cup of fresh fluid through. I opened up the slave cyl. and drained out as much as I could. then refilled and bled everything.</div><div> Seams perfect now but then it felt perfect before too. </div><div>There was no sign of leakage anywhere so the external seals must be fine. I'm a bit suspicious of the slave cylinder I replaced last fall as it was a BP Northwest product. Some sort of Asian knockoff. I guess we will see what comes to pass.</div><div> Thanks for the replies.</div><div> P.J.</div><div>Looking forward to seeing you all at the K cup<br><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, May 27, 2023 at 6:12 PM Bob Kramer Gmail via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I don’t know why the fluid in the clutch master cylinders gets nasty so quickly, but it does. I start my CMC bleeding process by sucking out all the old fluid from the reservoir, wiping it out and filling with fresh fluid. I make sure to use all the first fill in the bleeding process so I know all the older fluid has passed out of the slave cylinder. <br>
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Sent from my iPhone<br>
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> On May 27, 2023, at 1:46 PM, J Wagner via Fot <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>> wrote:<br>
> <br>
> <br>
> <br>
> Yes, assuming the seals are sound, as suggested, simple bleeding could be the fix. Water/Air in the system, expanding with heat, could be taking up some of the pressure required to release the clutch. (Think brake fade.)<br>
> <br>
> And how old are the seals in the cylinders? Maybe the general thermal expansion in the cylinders and/or heated fluid and rubber, is just enough to cause some failure of aging seals?<br>
> <br>
> While it’s messy, and it’s been a while for my 4A, after an initial bleed at the slave to just get the system filled with fresh fluid, I used to bleed the master before a final bleed of the slave, by loosening the line ahead of the slave (with the slave nipple closed) as if it were a bleeding nipple. (loosen, push, hold, tighten, repeat… clean up fluid as it’s a blind bleed into a rag) Then do a final bleed at the slave nipple. That always seemed to make it all go faster, relatively effortless. (I always thought to make some sort of custom bleed screw between the master and slave, but never did.) <br>
> <br>
> Between owning British cars, doing my own plumbing for decades, and working water gag special fx in the film buiz, I feel like I should get an honorary PhD in general hydraulics, though, I am quite aware, I still only know .002% about them. Ok, even less. <br>
> <br>
> —Justin <br>
> <br>
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>> On May 27, 2023, at 9:36 AM, Philip Gott via Fot <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>> wrote:<br>
>> <br>
>> Have you tried bleeding it?<br>
>> <br>
>> Sent from my iPhone<br>
>> <br>
>>>> On May 27, 2023, at 11:16 AM, McKearn McKearn via Fot <<a href="mailto:fot@autox.team.net" target="_blank">fot@autox.team.net</a>> wrote:<br>
>>> <br>
>>> <br>
>>> Hi all.<br>
>>> Got the GT6 out a few days ago and remembered that I was going to fix the clutch problem I had last fall before I stored it away but did'nt ..<br>
>>> So long story short, I don't know if it's the slave cyl or master cylinder but it works fine at first few shifts but as you drive it you get less and less clutch movement.<br>
>>> Seems like if you let it set a while it will work again..<br>
>>> Any ideas?<br>
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