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Superspec clutch


deano266
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well i spoke to someone at GBS today and good news gentlemen, they still have clutch parts for the rover t series non turbo, they also noted that they still have loads of parts left for superspecs but not just on the website

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2 hours ago, alanrichey said:

I wish they would list them so we could buy what we think we might need.  At the moment it’s guesswork.

They must have them hid in one of their storage containers

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Well good and bad news. So bad news first. My clutch was smashed to pieces and looked like it had exploded.

 

Good news is it can be fixed and the mechanic seems sure he can sort the rattle. He said with the mt75 needle roller it's too small for the gap in the brass bushing, however with some epoxy or metal putty he can place the needle roller in secure it with that in the bushing and this should stop the rattle. 

 

He did note its not advisable but its the best solution in a bad fitting hole.  He did mention that if the resin fails then it will most likely rattle still and go to the back of the bushing causing no damage so its worth a punt

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Wow, I wonder what caused that.   Was it just the clutch plate, or the pressure plate, or both ?  Good news that a new clutch should fix it.  

I don't fully understand his comment about the MT75 needle roller, I have never seen anything like that on an MT75 and it doesn't match up with anything else that has been reported.   Maybe he is talking about the bearing that was originally fitted to the gearbox input shaft to match the hole in the output shaft of the Granada engine.   We know that didn't fit the Rover engine, which is why RHE machined the phosphor bronze (I think) bush as a replacement.   But even though we know the tolerances were a bit iffy I don't understand why a slightly loose fit of the gearbox input shaft into a phosphor bronze bush would create a metallic rattle.   I would have thought it would just wear away the bush.   But I am prepared to eat my words if his fix works. 😀

Is he using the old home made release bearing or a proper new MT75 one?  And could you ask him if the release bearing should actually be clipped into the release arm ? 

Fascinating stuff, keep the information coming, it's incredibly useful for other Superspec owners.

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the reason the metallic rattle happens is due to the play in the shaft that goes in to the bushing. The shaft has a bit of slop in the gearbox, so as it is rotating its hitting and making that noise (or thats at least what he thinks it is). When the bearing is in place we will most definitely find out. In terms of release bearing i have got a proper mt75 release bearing so should be clipped in properly now

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OK, that theory has been advanced before.  I am still a bit sceptical as if that was the case I would expect the rattle to be there all the time, whereas we know it disappears the moment you press down on the clutch pedal and force the release bearing against the pressure plate.  Hence  my theory that it is related to the release bearing.  Unfortunately if your mechanic fixes the bush and clips the bearing into the release arm we will never know which of the two caused the rattle 😀  But regardless, it’s good news for you as you will have the quietest Superspec on the road 😀

I gather you posted a picture of the broken clutch on another site, can you post it on here ?  Or PM me a copy ?

Cheers

Al

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Posted (edited)

Okay, the pressure plate is from a rover 420 however the clutch material is where I'm struggling now.

The original was a borg and beck 53131 and struggling to find what that came out of. 

 

Searching for the exedy mzk 2100 I can't determine what that is from either

Edited by deano266
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Hi Deano

 There's a place in leeds not to far from me that recondtion's clutch plates and dmf i got my sierra plate reconed for £12 quid , They are a clutch specialist

The place is called CG Motorsport  opens 9am while 6pm mon to fri.

phone number  0113 2426359

 

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I've seen the pictures, it would need a miracle to recondition that plate😀.  

Dean: The code I passed you before (Exedy MZK2100) is the one that Chris used to replace his clutch plate.   Have you tried that ?  Euro Car Parts carry it, you should get a discount with the Club membership.

Edited by alanrichey
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3 hours ago, alanrichey said:

I've seen the pictures, it would need a miracle to recondition that plate😀.  

Dean: The code I passed you before (Exedy MZK2100) is the one that Chris used to replace his clutch plate.   Have you tried that ?  Euro Car Parts carry it, you should get a discount with the Club membership.

Yeah I tried but they couldn't find it on the system

And the rimmerbros one didn't go over the splines properly.

 

Fortunately I went to a local clutch place and he had a Ford spline 215mm clutch so got that.

 

In terms of the release bearing I asked the mechanic and he said it was clipped in as he had to unclip it out. He is going to modify the arm slightly to accommodate the mt75 release bearing from kitspares as we can get them easily

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@alanricheythe car has come back and I can confirm the 'superspec rattle' is no more. The mechanic said it was the spigot bearing as when he placed it in when determing the fit he could see it moving (as there was no bearing) along with all the scoring on the shaft and the bushing. Once placed in with a bearing there was very little to no movement and span cleanly in the bearing. 

 

I would definitely recommend doing it but due to the way the engine and gearbox come out I would only do it when gearbox is coming off anyway 

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