S2000 Under The Hood S2000 Technical and Mechanical discussions.

Wheels continue to turn while clutch depressed

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Old Dec 9, 2020 | 08:51 AM
  #31  
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Sorry team, thought it was OE disc. It is indeed exedy.

Maybe that's part of the issue and does need to be thrown out. Edit, it's an exedy OEM replacement kit but oem nichi bearing.
​​​​​​
Also thanks re anti seize, it does look like it's spitting. The intention is to use MOTUL tech 300 while we wait.


Last edited by yemodat; Dec 9, 2020 at 10:05 AM.
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Old Dec 9, 2020 | 09:11 AM
  #32  
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Originally Posted by yemodat
Hi team
Brand new gearbox rebuilt (AP1), OEM clutch (approx 12,000kms), OEM release bearing (12,000kms), OEM clutch slave cylinder and confirmed non-leaky clutch master cylinder (but unknown how long/when they were replaced).

Long story short, when the car is on and the clutch pedal is depressed (pushed in) but not in any gear, the rear wheels will continue to turn slowly as if its catching/dragging. It won't go into reverse either. It goes into every gear when the engine is off though.

Any ideas?
Probably been said already but with clutch disengaged the throwout bearing and pilot bushing still transmit a small amount of torque to the transmission input shaft.

Regarding not getting into reverse, this may not be what you are getting, but the early AP1 has deliberately light synchros in lower gears to produce very light shift effort. When I first start my model year 2000, reverse or first may feel blocked out when I try to select them. Not grinding, just won't go. All I have to do is double clutch. Always works. That is, engage the clutch (let the pedal up) in neutral to spin the gears then release the clutch (press pedal) again to shift into first or reverse. Once the gears are moving the synchros do the job.

Later cars (2002?) got heavier synchros because of complaints about gear crunch from customers who only knew how to slam shift.

From my archives:


PII: S0389-4304(99)00085-5


PII: S0389-4304(99)00085-5

PII: S0389-4304(99)00085-5
.
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Old Dec 9, 2020 | 12:11 PM
  #33  
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Thank you!

Okay, this forum is amazing but also incredibly difficult to find the right things. Does anyone know where appropriate grease points are on the gearbox?

Input shaft, throwout/release bearing, clutch fork... where else?
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Old Dec 9, 2020 | 04:27 PM
  #34  
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Originally Posted by Gregg Lee
Probably been said already but with clutch disengaged the throwout bearing and pilot bushing still transmit a small amount of torque to the transmission input shaft.

Regarding not getting into reverse, this may not be what you are getting, but the early AP1 has deliberately light synchros in lower gears to produce very light shift effort. When I first start my model year 2000, reverse or first may feel blocked out when I try to select them. Not grinding, just won't go. All I have to do is double clutch. Always works. That is, engage the clutch (let the pedal up) in neutral to spin the gears then release the clutch (press pedal) again to shift into first or reverse. Once the gears are moving the synchros do the job.

Later cars (2002?) got heavier synchros because of complaints about gear crunch from customers who only knew how to slam shift.

From my archives:


PII: S0389-4304(99)00085-5


PII: S0389-4304(99)00085-5

PII: S0389-4304(99)00085-5
.
Very nice! Thanks, for posting this.
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Old Dec 9, 2020 | 04:31 PM
  #35  
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Originally Posted by yemodat
Thank you!

Okay, this forum is amazing but also incredibly difficult to find the right things. Does anyone know where appropriate grease points are on the gearbox?

Input shaft, throwout/release bearing, clutch fork... where else?
And try to wipe off excess.

https://www.s2ki.com/forums/s2000-un...ch-job-935955/
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Old Dec 9, 2020 | 06:14 PM
  #36  
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pack the groove in the bearing's sliding surface well.

Splines get a thin coat

Release guide gets a thin coat

Release bearing face where it grabs the clutch gets a thin coat.

The fork's machined parts get a generous coat.
Pack the fork's pockets
wipe off whatever oozes out once pre-assembled.

A little paint brush and your finger tips work as spreader tools.
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Old Dec 9, 2020 | 06:46 PM
  #37  
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Thank you everyone. Might be speaking prematurely but we seemed to have fixed it...

Video below - handbrake on, car on the ground. Goes into every gear and reverse!
https://streamable.com/reqkuu

The gearbox was reassembled today using Motul Tech 300 high temp grease. It looks like anti-seize was actually used in places where it shouldn't have been and caused a bind up. Time will tell whether this has fixed it for good. However, I only need it good for 4-5 weeks while I wait for my new OEM clutch set up (safe than sorry). Urea grease also on its way here.

Last edited by yemodat; Dec 9, 2020 at 06:59 PM.
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