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Hello! 
i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box 
When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk

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https://www.sau.com.au/forums/topic/486443-squeaking-clutchthrow-out-bearing/
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When you say it is smoking from the gearbox area....is the clutch also slipping? On an uphill put it in a high gear and see if the revs rise faster than your speed does.

It is possible that the pedal or slave cylinder needs adjustment; have someone make sure that when the clutch pedal is up that there is some movement in the fork; if it is preloaded then you either need to back off the pedal length under the dash or use a shorter clutch slave rod.

If the fork is not preloaded but the clutch is still dragging you might have an issue with the release bearing size, that would be box out to measure and fix

Thanks for the reply. Yes the fork is preloaded. I also want to ask there is only one way for the throw out bearing to go on right? The flat side should go towards the gearbox. I am using an 18mm clutch release bearing sleeve.

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  • 4 weeks later...
1 hour ago, jayden_l33 said:

I am getting the same issue. Did you resolve it? I just got it after installing my new super coppermix and literally the same issue, new fork, new 18mm carrier, release bearing that came with the kit and replicated the exact same sound. 

Is your clutch fork also preloaded like OPs was?

14 hours ago, MBS206 said:

Is your clutch fork also preloaded like OPs was?

How would you even adjust the clutch if the pedal already has the correct free play? The operating cylinder has no adjustment in mounting position or rod length. On pull style clutches there is also no ability to adjust the bearing carrier. Push type I can see how adjusting the carrier height makes it all work.
 

15 hours ago, jayden_l33 said:

I am getting the same issue. Did you resolve it? I just got it after installing my new super coppermix and literally the same issue, new fork, new 18mm carrier, release bearing that came with the kit and replicated the exact same sound. 

If this is the twin plate clutch did you verify that your friction disks were oriented correctly? It's not mentioned in the directions at all you just have to notice that one side the friction disks have a part number on the hub fingers and a subtle coning to those fingers. Another thing that I noticed was if you put the friction disks in backwards the pressure plate fingers will not be even and flat when the clutch is installed.

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