[Fot] Clutch issue - guesses? Answer!

[Tony Drews]

That was fun to see the wisdom of the list.

Problem was...: pressure plate.  Apparently the diaphragm broke. Not all 
fingers line up.

That was really fun to take apart (not!!!).  I'll send a pic on the next 
reply.

So...  Any "better than the others" choices for a TR-6 stock style 
pressure plate?  I probably should go ahead and do the disc while I'm at 
it - and I'm looking for good sources for that too. This is the TR-7 
splined disk (1" 18 spline?).  I need something beefy of course.

The disc actually looks pretty good, but while I'm in here I might as 
well see about doing the whole schmeer.  I'm going to rebuild the slave 
too just because, although the more I replace the more my new parts can 
catch me out too.  One more local race before the 4 day tow to the Cup 
in Portland, would much prefer not to break it again there.

Clutch fork is pinned to the shaft with an extra through bolt. Clutch 
fork fingers are stock, would be a good opportunity to try Glen's grade 
8 bolt trick.  Glen, can you describe how you do that in a little more 
detail?

Time for shower number 2 for the day.  :)

Cheers, Tony Drews

On 5/8/2021 1:39 PM, Tony Drews via Fot wrote:
> I had an issue last weekend that I'm going to dig into shortly. I 
> thought it would be fun to see what the guesses on the root cause are 
> before I take things apart and really figure it out...
>
> Setup:
>
> TR-4, stock style clutch (diaphragm pressure plate), stock-ish linkage 
> and slave cylinder
>
> Issue:
>
> Sudden change in clutch engagement point on clutch pedal and slipping 
> clutch when pedal is up.  Engagement point moved from near the floor 
> to near the top of pedal travel.  Happened suddenly.  Clutch fluid is 
> at normal level.  Clutch will still engage, but not completely - like 
> I'm not fully releasing the pedal.
>
> Guesses?  I'm suspecting something with the clutch fork (maybe a pin 
> came out and jammed in the throwout)?  Slight chance of hang up in 
> slave cylinder, but those are so simple it seems unlikely. Of course 
> I'll report back when I know the actual cause.
>
> Cheers, Tony Drews
>
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