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Spigot Bush Or Input Shaft

DC33VN
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DC33VN Experienced

DC33VN

Posted
Posted

Recently i have bought a r33 gtst and it has shot spigot bush or input shaft.

The car had its clutch changed at 97.255kms which consisted of the clutch being changed , pressure plate and thrust bearing and also the flywheel was machined.

The car now sits on 118xxxkms and i dont see a point in taking out the gearbox to change the bush if its not serious.

So i was just wondering if its a good idea to ignore the problem or should it be attended to asap and also whats the worst that could happen if its not replaced and something does go wrong?

Thanks Con

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bubba Grand Master

bubba

Posted
Posted

Which one is it? they are completely different problems..

Spigot bush sounds like a really high pitched squeal whenever clutch is pushed in (flywheel now turning at a different speed to the input shaft, dry bearing catches). Box out, fit $10 spigot bush.

Input shaft bearing, when mine went, was a pretty severe rythmic thumping when accelerating in all gears. New box or recon.

DC33VN Experienced

DC33VN

Posted
  • Author
Posted

Tt would be the spigot because everytime i turn the car on the noise comes on about 10 seconds after and when i press the clutch in a little bit or all the way it goes away but when my foots taken off it comes back within 2 seconds

Would you recommend changing it asap or just see how far i can go with it?

Birds Grand Master

Birds

Posted
Posted

If the noise goes away when you put a tiny bit of pressure on the clutch pedal, i.e. pushing until the point where you start to get some resistance from the clutch pedal, then it will be a thrust bearing issue. Noisy thrust bearings are very common in Skylines, particularly if you have an aftermarket clutch. My Exedy clutch used to do it...but a bit of grease sprayed on the input shaft retainer/thrust bearing and it doesn't make the noise anymore. The noise itself isn't much to worry about unless your thrust bearing starts making noise when the clutch pedal is completely pushed in. Unfortunately gearbox has to come out to replace thrust bearing, so maybe try the grease thing or just live with the noise.

DC33VN Experienced

DC33VN

Posted
  • Author
Posted

it sucks now cos theres no reason to pull out the gearbox other then this stupid bearing. clutch is like new and synchros and bearings are all fine inside the box..

would there be anything else worth changing while im at it so i dont have to take the box out other then if anything goes wrong?

Birds Grand Master

Birds

Posted
Posted

Did you attempt my diagnosis? It may tell you if there is a thrust bearing issue. Gearbox labor isn't something I'd want to pay for if I didn't have to. It coud be as simple as spraying grease on the input shafter retainer and you're going to pull out your gearbox to replace a spigot bearing that may or may not be responsible for it.

There are logical steps to this!

If pulling out your gearbox, replace your clutch arm pivot ball for a Nismo item. They cost about $70, a good investment given how weak the factory item is.

LANDSCRIBBLE Mentor

LANDSCRIBBLE

Posted
Posted

Ive got the same problem (excedy clutch installed 15,000kms ago), although mines gotten to the point where it makes the ticking noise even with the clutch dis-engaged. Also told it was the thrust/spigot bearing and that its not really a problem until it starts messing with clutch feel etc.

Birds - "bit of grease sprayed on the input shaft retainer/thrust bearing". is this accessible from underneath the car? Sorry bit of a noob here.

Birds Grand Master

Birds

Posted
Posted

Thrust and spigot bearing are very different parts. Spigot sits inside the engine block at the end of the crank. Thrust bearing sits on the input shaft retainer and gets pressed up against the pressure plate. Again, if you do my simple test it can often rule out one or the other.

As far as spraying grease goes, that's easy enough, you need to unbolt the slave cylinder...pull off the clutch fork dust cover and shine a torch in there...you'll see the thrust bearing and input shaft retainer. Avoid spraying towards your clutch... you don't need grease in there lol. Put a bit on the clutch fork pivot ball while you're at it.

central coast person Proficient

central coast person

Posted
Posted

Ive got the same problem (excedy clutch installed 15,000kms ago), although mines gotten to the point where it makes the ticking noise even with the clutch dis-engaged. Also told it was the thrust/spigot bearing and that its not really a problem until it starts messing with clutch feel etc.

Birds - "bit of grease sprayed on the input shaft retainer/thrust bearing". is this accessible from underneath the car? Sorry bit of a noob here.

Clicking when dis-engaging the clutch means the clutch pedal box is broken and it needs to be replaced. You should also change the clutch pedal bracket or upgrade to the nismo one.

If you dont fix this the pedal can snap at the welds on the firewall. Look it up in other threads in this section for more info on it.

My exedy is only 10,000km old and the thrust bearing is noisy aswell. You will never break anything by leaving it noisey.

LANDSCRIBBLE Mentor

LANDSCRIBBLE

Posted
Posted

Clicking when dis-engaging the clutch means the clutch pedal box is broken and it needs to be replaced. You should also change the clutch pedal bracket or upgrade to the nismo one.

If you dont fix this the pedal can snap at the welds on the firewall. Look it up in other threads in this section for more info on it.

My exedy is only 10,000km old and the thrust bearing is noisy aswell. You will never break anything by leaving it noisey.

I'll look into this, and i checked that thread out. Thanks.

  • 1 month later...
simpletool Mentor

simpletool

Posted
Posted (edited)

Clicking when dis-engaging the clutch means the clutch pedal box is broken and it needs to be replaced. You should also change the clutch pedal bracket or upgrade to the nismo one.If you dont fix this the pedal can snap at the welds on the firewall. Look it up in other threads in this section for more info on it.My exedy is only 10,000km old and the thrust bearing is noisy aswell. You will never break anything by leaving it noisey.

It CAN mean this but can also just be the springs on the clutch plate itself (not an issue). Define "clicking" noise. The broken clutch bracket is more a cracking sound rather than clicking.

Edited by simpletool

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