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-   -   clutch helper spring replacement. another way (https://www.ft86club.com/forums/showthread.php?t=92679)

Sandy 08-01-2015 04:47 PM

clutch helper spring replacement. another way
 
Having had no luck removing the clutch pedal spring, I decided to try another way.The spring has been replaced and the clutch pedal feels more normal. All very easy, 1. Under the hood, remove the two 12 m nuts on the clutch master cylinder. It will just hang there no problem. A long extension is used. A piece of plastic tape in the socket will keep the nut from falling out after it comes off the bolt. 2. Under the dash on your back,Two electrical plugs...Squeeze and pull. The pin for the clutch rod.and another 12 m bolt are all easy to get to. The pin has a plastic barb on the end you need to squeeze and pull it out Take the bolt out last and ease the complete peddle assembly out. 3. Now on the work bench.Move the peddle up and down and you will see why the clutch felt so strange. Remove the clips and pins .Pry the hole thing out. This is a very strong spring, I replaced it with a much softer one.Got it at a local automatic trans shop. Exact same size.Now put the ends on the new spring clamp it in a vice and squeeze.Put a tie wrap around the ends and pull . Put in the pins and clips.Try the pedal again.Big difference but it does hold the pedal to the upper stop. I think this spring is necessary. If it were not used the heavy pedal could cause clutch bearing to ride on the pressure plate.Not good Especially if you tend to rest your foot on it. Now ease the assembly back into place.Make sure the cleaves is over the peddle as you slide it into place.Put the 12m bolt in . All easy as Cheers Sandy in Nelson NZ

Ultramaroon 08-01-2015 05:46 PM

I figured the only way to get at that spring on a RHD car would be to remove the whole assembly. Kudos.

The spring, however, is not necessary. The geometry of the linkage is such that the spring puts very little return force on the pedal when released. The master cylinder has a perfectly good return spring. Why on earth would anyone rest their foot on the pedal? No no no...


Now, when you realize the clutch still feels like stirring rice pudding, do this. :D

Sandy 08-01-2015 06:15 PM

See if you still think the spring does nothing after you take the petal box out and try it with a soft spring.

Ultramaroon 08-01-2015 06:51 PM

I removed mine long ago. It does plenty but only through the bottom third of the arc. I was referring to the top where the crest of the over-center is very flat.

sprinter64 08-02-2015 04:12 AM

Good work Sandy, glad you didn't quit on it, the result is a massive difference,
and a clutch you can feel.
I agree with Ultramaroon too, no replacement is needed.
I've been considering the slave cyl mod too but think the better option may be a different pressure plate with shorter springs.

Ultramaroon 08-02-2015 05:32 PM

Quote:

Originally Posted by sprinter64 (Post 2343393)
Good work Sandy, glad you didn't quit on it, the result is a massive difference,
and a clutch you can feel.
I agree with Ultramaroon too, no replacement is needed.
I've been considering the slave cyl mod too but think the better option may be a different pressure plate with shorter springs.

The engagement arc is much shorter but full engagement still doesn't happen until very nearly the top of the stroke. I would like it to grab deeper and would be keenly interested in your observations should you decide to explore this option.

It's not rocket science but those who baulk at replacing the slave cylinder would never dream of dropping their transmission.


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