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To get a new clutch, or not to? That is the ???

Posted: Fri May 09, 2014 9:24 pm
by revhead
(long but please read)
Just picked up my second mx5, an na8 this time, that I have owned (wrote off my s15 :( ). Pretty clean car, needs a good tidy up so will be fun to work on. Now, my previous mx5, an na6, apparently had an aftermarket clutch in it but previous owner could not recall what it was, and it felt great. Had a really low friction point with a slightly firm pedal which is just how I like it (the s15 was the same). Now with the na8, the friction point is waaaaay at the top of the pedal and I just can’t take it anymore. I struggle to drive it properly and there is just not enough feel for my driving style.

The clutch doesn’t seem to slip, but it could be getting old? I have heard that there is some level of peddle adjustment that can be done but I can’t find a detailed picture filled guide or a diy fix. I was thinking about just having my mechanic install a new clutch for me as I would like a better than oem performing one anyway. I am interested in getting on the track this time. And I do like spirited driving. No major engine mods, just the fun stuff like full exhaust and intake. I am looking at this clutch here: http://www.mx5mania.com.au/product983.htm

Can I have my fly wheel machine to suit it? Or does the above link say that an already machine fly wheel being machined again to suit this new clutch will not suffice? It is a bit misleading. I am assuming that I can request my mechanic to set it up for a low down in the pedal friction point? What other bits and bobs could use an update and replacement while the box and clutch is out? I want to get as much out of this potentially costly install as possible (my mechanic is good and has only quoted me about 350 including machining of flywheel, loyalty discount I guess)

Any help would be realty appreciated, I have no mechanical experience when it comes to clutches and only basic knowledge of the install process for a clutch.

Thank you :D

Re: To get a new clutch, or not to? That is the ???

Posted: Fri May 09, 2014 9:48 pm
by cookie
Shove your head under The dash. There's a lock nut. Loosen that off. Wind threaded rod and 're tighten nut. Takes 30 seconds. Worth trying before a new clutch. Maybe bleed it too

Re: To get a new clutch, or not to? That is the ???

Posted: Fri May 09, 2014 10:48 pm
by revhead
cookie wrote:Shove your head under The dash. There's a lock nut. Loosen that off. Wind threaded rod and 're tighten nut. Takes 30 seconds. Worth trying before a new clutch. Maybe bleed it too


does changing that threaded portion alter the pedal position, or the friction point of the clutch? i will try to do some googling for an instruction break down with pictures.

Re: To get a new clutch, or not to? That is the ???

Posted: Sat May 10, 2014 12:11 am
by green_comet
It adjusts only the friction point, like cookie said it takes 30sec to adjust.

http://miata.net/garage/adjust_clutch/index.html

Re: To get a new clutch, or not to? That is the ???

Posted: Sat May 10, 2014 1:51 am
by revhead
Awesome, thank you for that. I will have a crack at it. Is the free play adjusted by separate mechanism or via the same shaft?

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Re: To get a new clutch, or not to? That is the ???

Posted: Sat May 10, 2014 11:26 pm
by cookie
Just play with it . You'll discover what it does quicker than I'd explain it again lol.

Re: To get a new clutch, or not to? That is the ???

Posted: Sat May 10, 2014 11:58 pm
by davekmoore
Dunno if NAs suffer the same cooked left driver's leg but if you do take the gearbox out you might want to get some heat insulation thrown on the underside of the transmission tunnel before you refit the gearbox.

Re: To get a new clutch, or not to? That is the ???

Posted: Sun May 11, 2014 12:59 am
by revhead
thanks guys. being at uni 5 days a week and in exam period i have almost no time to work on my car, and it is a fixer upper :( just wanting to be as educated as possible to be efficient when it comes time to dig into it.

Re: To get a new clutch, or not to? That is the ???

Posted: Sun May 11, 2014 3:37 pm
by Mr Morlock
Best thing to do is get a reference book from a library that explains car mechanics- there are very good guides which explains how things work.

Re: To get a new clutch, or not to? That is the ???

Posted: Sun May 11, 2014 8:18 pm
by revhead
Ahhh, I just remembered! ! My last mx5 that I had over 2 years ago had a workshop manual under the spare wheel along with a wiring manual!! I hope o can find it, I'm sure I didn't give it to the new owner with the car.

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