Clutch Master Upgrade Options for Elise/Exige? - LotusTalk - The Lotus Cars Community
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post #1 of 35 (permalink) Old 07-04-2016, 05:47 AM Thread Starter
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Clutch Master Upgrade Options for Elise/Exige?

Are there any good upgrades/options for clutch masters other than OEM? Ive been reading through the forums and it seems to be quite an issue, so Id like to avoid putting in a new one that may likely ultimately fail again if there are better options… I see there is what looks like one on elise parts, does anyone know if its any good?

Thanks!

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post #2 of 35 (permalink) Old 07-04-2016, 07:17 AM
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I've never heard of the master cylinder being a problem.
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post #3 of 35 (permalink) Old 03-14-2017, 09:53 AM
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I have a 2008 and mine just sprang a leak from the side of it. Why it was made from plastic is beyond me. It would be cool if there was a metal replacement.
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post #4 of 35 (permalink) Old 03-14-2017, 09:57 AM
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Mine just failed too (I think) anyways I replaced it and damn it's hard to bleed, suggestions welcome... No air is coming out either end for a while now, but still won't release the clutch all the way.

2007 Exige S with almost every track mod...
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post #5 of 35 (permalink) Old 03-14-2017, 10:09 AM
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The Evora people have a replacement, so I would think with a suitable adapter it could be done
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post #6 of 35 (permalink) Old 08-03-2017, 05:43 PM
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Finally found my Clutch issue was a hairline crack in the Master.

Can anyone help with some tips for installing the new one?

The service manual mentions 2 bolts inside the foot well that I don't see.

It appears it would be just the two bolts on the outside.

Mainly I'm not sure how you get the pedal separated from the Master.
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post #7 of 35 (permalink) Old 08-03-2017, 05:59 PM
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There is a clevice on the back of the pedal isn't there?

2007 Exige S with almost every track mod...
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post #8 of 35 (permalink) Old 08-03-2017, 07:01 PM
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I can see the one on the Brakes but not the clutch.
Probably just need to contort more.
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post #9 of 35 (permalink) Old 08-03-2017, 07:24 PM
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https://howtune.com/articles/252-rep...lise-and-exige


Step 12

FYI everyone as a followup to my issue, the end result is that the master failed because the clutch had bound up on the input shaft, apparently a common occurance with our cars and clutchmaster clutches. This is why it wouldn't release

2007 Exige S with almost every track mod...
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post #10 of 35 (permalink) Old 08-03-2017, 09:35 PM
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That was a spectacular write up.
Thanks for the link.
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post #11 of 35 (permalink) Old 08-04-2017, 06:17 AM
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Quote:
Originally Posted by kfennell View Post
https://howtune.com/articles/252-rep...lise-and-exige


Step 12

FYI everyone as a followup to my issue, the end result is that the master failed because the clutch had bound up on the input shaft, apparently a common occurance with our cars and clutchmaster clutches. This is why it wouldn't release

Did you have an external leak on your Master Cylinder?
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post #12 of 35 (permalink) Old 08-04-2017, 06:19 AM
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There was a leak somewhere, but i never could be sure if it was the hose, or the MC, or something else? Maybe the quick connect or the O-Ring. Just one day I hit the clutch in the paddock and fluid went everywhere out the drivers wheel well.

2007 Exige S with almost every track mod...
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post #13 of 35 (permalink) Old 08-12-2017, 04:12 AM Thread Starter
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Sorry to revive an old thread, but for the second time in only 3k miles of driving Ive now blown a SECOND brake master. Exact same thing happened; Hairline crack/pinhole in the plastic of the brake master's housing.

Does anyone know of ANY kind of upgrade/metal/ alternative versions?

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post #14 of 35 (permalink) Old 08-12-2017, 07:00 AM
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Tilton Makes one but I'm not sure sure how much work it will be to install or if it will fit for sure.
Do you have a hydraulic throw out bearing?
Our clutches are supposed to be self adjusting according to the service manual. That's the only thing I could see is if your pedal stop wasn't properly adjusted putting too much pressure back on the MC.
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post #15 of 35 (permalink) Old 03-18-2019, 05:39 AM
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Bumpy bump: I just had my 2nd Elige clutch master cylinder go out. For the record, I'm running and E153 transmission with an ACT HDSS clutch and I think the loads are just too high for the OE plastic master cylinder.

I have heard from a reputable source that the 1996-2000 Honda Civic master cylinder will work with some slight modifications. I'll be trying this out.
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post #16 of 35 (permalink) Old 03-18-2019, 07:33 AM
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Quote:
Originally Posted by glagola1 View Post
Bumpy bump: I just had my 2nd Elige clutch master cylinder go out. For the record, I'm running and E153 transmission with an ACT HDSS clutch and I think the loads are just too high for the OE plastic master cylinder.

I have heard from a reputable source that the 1996-2000 Honda Civic master cylinder will work with some slight modifications. I'll be trying this out.
I shift 100x more then you do and I am not having trouble with an HDSS. Are you sure you aren't getting binding on the input shaft/clutch hub? That is what failed mine.

2007 Exige S with almost every track mod...
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post #17 of 35 (permalink) Old 03-18-2019, 07:39 AM
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Originally Posted by kfennell View Post
I shift 100x more then you do and I am not having trouble with an HDSS. Are you sure you aren't getting binding on the input shaft/clutch hub? That is what failed mine.
Do you have an E153 transmission? It's much larger than the C61 and is built for much more engine load, ie clamping force. My pedal is quite stiff.

Also, I spend a lot of time navigating grid and on the start line. My clutch is often fully depressed.

I just rebuilt my whole set up and everything looked great except I had to relube the TO bearing surface since it was getting a little gummy.
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post #18 of 35 (permalink) Old 03-18-2019, 08:35 AM
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Quote:
Originally Posted by glagola1 View Post
Do you have an E153 transmission? It's much larger than the C61 and is built for much more engine load, ie clamping force. My pedal is quite stiff.

Also, I spend a lot of time navigating grid and on the start line. My clutch is often fully depressed.

I just rebuilt my whole set up and everything looked great except I had to relube the TO bearing surface since it was getting a little gummy.
Ah, no, but the difference is not in the transmission, is the pressure plate you use stiffer, and is the clutch slave bigger/smaller?

2007 Exige S with almost every track mod...
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post #19 of 35 (permalink) Old 03-18-2019, 12:53 PM
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Originally Posted by kfennell View Post
Ah, no, but the difference is not in the transmission, is the pressure plate you use stiffer, and is the clutch slave bigger/smaller?
Kevin,

Doesn't BOE's pedal box replace the clutch master?

Later,
Eldon
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post #20 of 35 (permalink) Old 03-18-2019, 01:01 PM
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Originally Posted by eldonz View Post
Kevin,

Doesn't BOE's pedal box replace the clutch master?

Later,
Eldon
No, it's not a pedal box at all. It just replaces the booster with a bracket that holds a balance bar. It also replaces the bar from the pedal to the booster. That is it.

2007 Exige S with almost every track mod...
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