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Discussion Starter #1
Hi guys

Don't know if somebody can help me out.

Basically spent the whole day wrestling with my gearbox, now have badly bruised shoulders and my pride a little dented lol.

I have an R33 GTR, I've upgraded to a HKS triple plate (pull type) clutch, I can get the box spline into the plates but no further, it's just won't go.

What am I doing wrong.
 

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Hi guys

Don't know if somebody can help me out.

Basically spent the whole day wrestling with my gearbox, now have badly bruised shoulders and my pride a little dented lol.

I have an R33 GTR, I've upgraded to a HKS triple plate (pull type) clutch, I can get the box spline into the plates but no further, it's just won't go.

What am I doing wrong.
have you put the release bearing on the wrong way round??
 

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Discussion Starter #3
Not 100% certain as to which way it should be.

As it is, I have it with ring on the release bearing towards the gearbox/pressure plate hence only one plate between pressure plate and ring on the release bearing. The other two plates are below the ring.

Hope that makes sense.
I will take it off again tomorrow and get some pics.

Any help appreciated.
 

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The release bearing should be on the gearbox not the clutch!!
 

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no i'm confused
will wait for pics
did you line all plates up with spline tool?
 

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Discussion Starter #6
Ron do you mean the thrust bearing? If so This can only go on one way.

The plates are aligned, although these don't require to be done individually as the centre spline is one that lines up the plate and slides onto the gearbox spline us actually one piece.

Will get done pics up.

The thing is, the box lines up, slips on to the dowls, but the tip of the gearbox spline just won't go far enough (into crank spigot bearing), and there is a gap between the bell housing and block, about a cm.

If I try to bolt it up, the engine locks, I can only assume the spline is off centre and is catching, hence lock up.
 

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Discussion Starter #8
The thing is, it's the same box which fits no problem without the clutch on, so nothing on that side should need to be trimmed down.

The issue in my opinion is the clutch. I've aligned the plates, gearbox shaft/spline slips through the plates, but then won't go any further. It's literally a cm away.

The release thrust bearing, which is obviously fitted to the fork prior (pull type) lines up and slots in.

Looking through the box, there doesn't seem to be any space for the fork to operate correctly.

It's a big clutch and just getting the box on/off is a horrid task.
 

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Discussion Starter #10
I'm 100% it's aligned properly, had it in and off a good few times

Just won't go. I'm thinking my realise/thrust/throwout bearing (whatever you want to call it) might be incorrect.

I didn't get one with the clutch, I'm using one I removed from a nismo twin plate that came in the car when I purchased it.

That being said it looks like a standard pull type bearing.
 

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If it's a push type you may need to trim the release bearing tube part of the gearbox front bearing cover.

Also need to get the correct release bearing carrier. They come in about 5 different thicknesses.

What exact clutch is this?
 

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He said at the top it's a hks triple pull type.
If everything lines up and it all goes together it should go in. Mine was a bugger last time. I had it ever so slightly out of line and wouldn't go in that last bit. To be honest though I knew it was slightly out and just wound a bolt in and it closed up fine.
Either your release bearing is to big or the clutch has come out of line as you have tried getting it in there.

I had a war with mine!!

Try what Jim said, but dont force it.
 

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might sound a bit daft here but did your clutch come with the flywheel and u sure its not a 34 flywheel i have had this in past
 

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Discussion Starter #15
might sound a bit daft here but did your clutch come with the flywheel and u sure its not a 34 flywheel i have had this in past

No idea in honesty, how can I tell and what difference would it make?

I purchased it from a member on here, as a complete unit minus release bearing.

I used the bearing that was on the car and previously used on a nismo twin plate.

I'm losing hope. Another day of fighting, rechecking, refitting, still 1cm off.

D-Ranged- in my opinion it's perfectly aligned, I've fitted many clutches but this is ridiculous.

I suspect the release bearing but not 100% what to compare against.
 

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Discussion Starter #16


Centre spline and ring I mentioned


This is how I have started it with the ring flywheel side down (google pic)


Gearbox spline minus bearing


With bearing fitted



 

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looking at pic 2, does the HKS have its own release bearing on the Pressure plate?

then you have one on your box aswell,

also does the inner ring of your bearing(on the box) fit into this Pressure plate?

you may need to turn the Prop side a bit whilst fitting on. worked for my mates car I helped him with
 

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Discussion Starter #18
I hear what you are saying and could explain why it's catching and leaving me with a gap of 1cm.

Only thing is the part on the clutch is a locking spring not a release bearing as such.

There is no way the fork could physically attach and pull anything on that part.
 

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when I did mine on the GTSt I had the friction plate the wrong way around.
 

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Discussion Starter #20
Just to add, the clutch was previously removed from an R34 GTR.

Is this an issue. Is it 100% compatible with an R33 Gtr?
 
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