Brake master cylinder leaking, to cut or not to cut.

Brake master cylinder leaking, to cut or not to cut.

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Major Fallout

Original Poster:

5,278 posts

231 months

Thursday 5th March 2015
quotequote all
The brake master cylinder has given up so its time to replace it, and since its leaking through the servo thats will need to come out as well.

Now having done a bit of reading you all say its a pig of a job, fine if you're a Chinese gynaecologist with no thumbs but not for us.

Now I'm very tempted to turn this inspection plate into a useful size. If I cut from the plate towards the wing then down to the rubber grommets then back to the plate. this should give me a dirty great big hole to work through.
But would I just be looking at the wrong side of the servo and master, would it actually help or would I still need to take it out through the footwell?

Would it be sacrilege?


SteveSPG

2,120 posts

202 months

Thursday 5th March 2015
quotequote all
I've only done the job on a griff, but the master was easy enough to do if you have a good assortment of tools. i can't recall what i did, but i remember I used most of the combinations of ratchet extensions and flexible joints available. the access hole is not ideal, and could readily be made bigger which would improve things a lot.

a hole big enough to get the servo through is a bloody big hole though!




Major Fallout

Original Poster:

5,278 posts

231 months

Thursday 5th March 2015
quotequote all
I think I'm going to wait till my new one arrives then have another think about it.

TJC46

2,148 posts

206 months

Thursday 5th March 2015
quotequote all
A hole big enough for the servo would be huge. Would also leave you with a bigger problem of water and fumes in the drivers foot-well.
If as you say you need to renew both the master cylinder and servo then the pedal box out is the only way to go.
It is a nasty job but if you take your time it can be done.

I removed the clutch master cylinder as well as this gives a little more room, it was leaking slightly, as they all do, and a small amount of fluid was running down the arm of the clutch pedal and onto the carpet.

You only want to do this job once. So once out, clean and paint the pedal box, renew the master cylinder and servo, and renew the clutch master cylinder.

Good luck......you going to need it.

pb450

1,303 posts

160 months

Thursday 5th March 2015
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Forgive my ignorance but what is the 'normal' route in and out for the brake MC and/or servo?

Was looking vaguely at this last weekend but couldn't figure it out.

SteveSPG

2,120 posts

202 months

Thursday 5th March 2015
quotequote all
pedal box out with the servos and cylinders attached.




Major Fallout

Original Poster:

5,278 posts

231 months

Wednesday 11th March 2015
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What st sick sadistic 6 elbowed double jointed rubber boned bd freak that put it there in the first place!

After about 9 hours its out, and I didnt cut the wing out. But boy I wish I did!

What a awful job, I removed the bonnet release cable and the accelerator cable! And the bracket that holds the accelerator cable and mechanism on the plenum.

Seriously who's idea was that? I need to put a face to who fitted this, did TVR keep you folded in a suitcase in the attic and bring you out just to fit servos?

TJC46

2,148 posts

206 months

Wednesday 11th March 2015
quotequote all
Major Fallout said:
What st sick sadistic 6 elbowed double jointed rubber boned bd freak that put it there in the first place!

After about 9 hours its out, and I didnt cut the wing out. But boy I wish I did!

What a awful job, I removed the bonnet release cable and the accelerator cable! And the bracket that holds the accelerator cable and mechanism on the plenum.

Seriously who's idea was that? I need to put a face to who fitted this, did TVR keep you folded in a suitcase in the attic and bring you out just to fit servos?
Well done ...clap.....welcome to the pedal box removal club.......just wait till you try and put it all back....hehe........hehe.........hehe.........hehe

Fibre-ron

112 posts

237 months

Wednesday 11th March 2015
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I have done it and it looked good. will try to get pics on here.

portzi

2,296 posts

175 months

Wednesday 11th March 2015
quotequote all
Major Fallout said:
What st sick sadistic 6 elbowed double jointed rubber boned bd freak that put it there in the first place!

After about 9 hours its out, and I didnt cut the wing out. But boy I wish I did!

What a awful job, I removed the bonnet release cable and the accelerator cable! And the bracket that holds the accelerator cable and mechanism on the plenum.

Seriously who's idea was that? I need to put a face to who fitted this, did TVR keep you folded in a suitcase in the attic and bring you out just to fit servos?
There is a certain satisfaction of doing this job yourself, I reckon you could do it in in half the time now? but whats the labour charge for a TVR garage to do the job? I would say more than 4 hours for someone who's done it before?

Barreti

6,680 posts

237 months

Wednesday 11th March 2015
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Complete bd of a job which I swore I wouldn't do again without cutting the wing.

Very well done thumbup