[Fot] Clutch issue - guesses? Answer!
Tony Drews
tony at tonydrews.com
Sat May 8 17:58:12 MDT 2021
And... the picture...
Cheers, Tony
On 5/8/2021 6:43 PM, Tony Drews via Fot wrote:
> 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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