HELP! - New Clutch fitted but NOT disengaging!

HELP! - New Clutch fitted but NOT disengaging!

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Discussion

Montauge

Original Poster:

87 posts

157 months

Wednesday 15th July 2015
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I'm well hacked off and only effectively have 24 hours to sort this, or I may be returning to the UK in a boring car at the end of this week - so any help would be much appreciated.
Received new uprated Helix clutch and uprated slave to fit. First problem though was we discovered the supplier did not include the alignment tool that was meant to be includedfurious
Managed to eventually align things but without the tool we were unable to check it by pressing the clutch to see if the tool would spin, before inserting the gearbox. We therefore assumed it was all ok and put everything back.
HOWEVER one can select gears when the engine is not running (with or without the clutch depressed) but when engine is running cannot select any gear. The clutch is not disengaging.
I will ring Helix tomorrow to see if it is possible we organised plates incorrectly that would cause this (this is my first assumption since we had them in and out so many times trying to align them), but otherwise has anybody got any other ideas????
Bled a good 1.5litres through the system until there were no air bubbles.
The pedal feels great. Great rebound and a good feel depressing it.
There are no leaks anywhere on the system.
Thanks in advance for any experiences that might help me, Regards, John.

Session

252 posts

180 months

Wednesday 15th July 2015
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My mechanic has just tried fitting 2 of the latest batch of helix clutches with no joy.tvr parts have looked into it and accepted there is something wrong with the batch and they won't have
it rectified anytime soon. Mine is a speed six clutch so if yours is too I think you'll need to get another.

I had previously had a supposedly updated AP clutch from racetech that only lasted 14k so wanted to try the helix in the hope it wasn't the usual crap quality we get fobbed off with in the tvr world.

Means I'm going to miss this weekends tvrcc event afater waiting 6 weeks for a clutch!

Session

252 posts

180 months

Wednesday 15th July 2015
quotequote all
My mechanic has just tried fitting 2 of the latest batch of helix clutches with no joy.tvr parts have looked into it and accepted there is something wrong with the batch and they won't have
it rectified anytime soon. Mine is a speed six clutch so if yours is too I think you'll need to get another.

I had previously had a supposedly updated AP clutch from racetech that only lasted 14k so wanted to try the helix in the hope it wasn't the usual crap quality we get fobbed off with in the tvr world.

Means I'm going to miss this weekends tvrcc event afater waiting 6 weeks for a clutch!

rev-erend

21,415 posts

284 months

Wednesday 15th July 2015
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It is always worth taking a few minutes to assemble old and new clutchs and take measurements on a bench.

Replacement clutches can have different heights.

RichV6

383 posts

207 months

Wednesday 15th July 2015
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Had something similar but not quite as bad as yours. Basically the clutch would not fully disengage, but I could get into gear, from there the clutch action was smooth, progressive and very light. Bled the clutch a number of times including taking it to a garage and resorted to some heavy footed behaviour to try and "wear it in" no difference. Left the car for a couple of weeks while at work and the TVR fairies got to work, resulting in quite a heavy pedal action but again a very smooth progressive action. Only thing I can think of is that for some reason there was air in the system, perhaps in the pipework which did not bleed out and gravitated out to the master cylinder while standing? The slave is the correct way around and the master cylinder was replaced to try and solve the problem. Sorry if not much help but seems to be a common occurrence at the moment with the Helix clutch and Raceproved slave combination.

Montauge

Original Poster:

87 posts

157 months

Wednesday 15th July 2015
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Session - thanks so much for your email. Have just finished on the phone with Helix and I strongly suspect that my clutch maybe from the same batch as yours. Am going to dismantle it and if on measuring the thickness of the plates they are over-spec then I too will be in the same boat as you. Hopefully it is something else but my instinct tells me not.
I too wanted to be at Millbrook with the car, leaving from France this Friday. If it is an out if spec clutch I will try fitting the old one again (since it was the slave that was the real problem), but it means the whole operation will then need to be done again once I have a corrected clutch!
Are you still going to be at Millbrook, in another car? If so and I am there we can have a rant together!

Byker28i

59,804 posts

217 months

Wednesday 15th July 2015
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Mines just been fitted with a Helix. The flywheel had to be machined 3 times before it worked properly. Sorry but no idea why, but it was done at Neil Garners. You could ring to ask?

FarmyardPants

4,108 posts

218 months

Wednesday 15th July 2015
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Have you tried adjusting the bar at the pedal end to get max possible throw? Not saying it'll work but worth a go ?

skidoo

400 posts

190 months

Wednesday 15th July 2015
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i have no dealings with the helix clutch but i remember fitting an ap clutch and had the exact same thing only to find out that the three little star washers were not in the box so i never fitted them.had to take the box out again and fit them and all was well but as i say not sure how the helix clutch is set up but if it has the washers i take it you fitted them

Session

252 posts

180 months

Wednesday 15th July 2015
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I won't be at the tvrcc event now I'm afraid as I don't see the point without my car to go in. I have cancelled my tickets and hotel this morning so someone on the reserve list can make the most if their car instead.

I heard from my mechanic this afternoon that tvr reckon it'll be at least 2 weeks to get it sorted so that's 2 months of the summer without the car. In 2013 I had to wait 4 months for ACT to supply a replacement part so not all that impressed with supply of parts for the marque to be honest.

you would like to think that as soon as they are aware of an issue they would contact everyone that had also taken delivery of potentially affected units to let them know.

I hope that tvr can do a better job with the new cars than they can with their parts especially when they couldn't even manage to call me back like they said they would.

Montauge

Original Poster:

87 posts

157 months

Wednesday 15th July 2015
quotequote all
I can unfortunately confirm that my instinct was right. Following receiving the disc thicknesses spec, direct from Helix, and taking everything apart for a SECOND time I measured the discs and they are out of spec - simply too thick - no way they were going to disengage!
I've been "lucky" enough to be able to put back my old clutch in order to be able to get from France to the TVR meet this weekend since the new slave works fine and that was the key problem that needed fixing. That's hardly the point though as I will have to have all the work re-done for a 3rd time when TVR send me a working clutch!
My order was a disaster from the word go. More than one piece missing (including the lack of alignment tool which alone cost my mechanic a lot of time - twice!), one ARB bush sent instead of two - who at the end of the day would want one?!, exhaust bolts that were too short, and to finish off a clutch which is way out of spec. Thank christ the slave was 1) sent and 2) worked!
Thanks again to Session who pointed me in the right direction and my heart goes out to you because I know what this big meet at Millbrook means to lots of enthusiasts like me and him.
If anyone else has recently bought a Helix clutch from TVR parts and has not yet fitted. DON'T!! First find out if it is in spec. TVR ought to be contacting clients immediately that they have sold these to since there is known problem - I'd be interested to know if they are because ether sure as hell told me nothing yesterday when I called them to complain about the fact that they have forgotten to include the alignment tool.mad
Contact me if you need specs of what the discs should measure.

ukkid35

6,175 posts

173 months

Wednesday 15th July 2015
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This should be on the General TVR forum as it is not Cerb specific, I'm sure others will be grateful for the info.

Montauge

Original Poster:

87 posts

157 months

Wednesday 15th July 2015
quotequote all
I agree but I'm not sure how I can change it now as I'm a newbie to all this inline chat stuff. If someone can direct me what to do I will happily do so in order to assist others.
John.

Session

252 posts

180 months

Wednesday 15th July 2015
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I have put a post up in the general section. Hopefully it helps prevent other poor souls wasting time and money attempting to fit, remove and refit, adjust and diagnose.

Saw another thread of an owner in Australia with the same issue, now that is hassle to ship back and wait for a replacement!

Montauge

Original Poster:

87 posts

157 months

Wednesday 15th July 2015
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Thanks Session. Please email me directly info@gourmet-touring.com

msmith0592

299 posts

144 months

Thursday 16th July 2015
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I've been on the phone recently with TVR Parts and they've supplied me new plates and have agreed to cover the cost of the labour refitting the correct sized plates.

Out of interest what is the correct thickness of the plates, I'll check them this evening to confirm that the new plates are actually correct?

Phone up Martin at TVR parts and demand that they send new plates and cover the labour cost of fitting them.

Michael

Jhonno

5,774 posts

141 months

Thursday 16th July 2015
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Is TVR Parts a new thing since the revival of the brand then?! Or a rebrand after the revival.. Never heard of them before.

Jhonno

5,774 posts

141 months

Thursday 16th July 2015
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Didn't realise the Helix was only £60 cheaper than the AP either.. Thought it was a better deal than that!

Tvr Power

1,076 posts

206 months

Thursday 16th July 2015
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Jhonno said:
Is TVR Parts a new thing since the revival of the brand then?! Or a rebrand after the revival.. Never heard of them before.
AP clutches rule smokin revival or burial ?

Dom

Jhonno

5,774 posts

141 months

Thursday 16th July 2015
quotequote all
Tvr Power said:
Jhonno said:
Is TVR Parts a new thing since the revival of the brand then?! Or a rebrand after the revival.. Never heard of them before.
AP clutches rule smokin revival or burial ?

Dom
Lol..

It could very much go either way I guess..