Clutch Hydraulics

Clutch Hydraulics

Author
Discussion

Sandgrounder

Original Poster:

563 posts

143 months

Saturday 10th October 2020
quotequote all
Picked up my S3 from mechanic today, hopefully that will be the end of my Starter Motor woes. However, when I got in the car, clutch pedal felt lighter than usual, and couldn't engage 1st gear, so car went straight back on the ramp for clutch bleeding.
There was definitely some air in the system, which was a surprise, as Slave cylinder was replaced a couple of thousand miles ago, and at the same time, master cylinder had a refurb kit installed.

Has anyone else had this, and is it a sign of pending failure? My mechanic played it down, but I struggle to see how air can get into a 'healthy' system?
I guess time will tell!

phillpot

17,105 posts

182 months

Saturday 10th October 2020
quotequote all
Sandgrounder said:
but I struggle to see how air can get into a 'healthy' system?
I guess time will tell!
Yes, but no more reason how air would get into a faulty system unless reservoir is allowed to empty?

Sandgrounder

Original Poster:

563 posts

143 months

Sunday 11th October 2020
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Morning Mike. Reservoir was full.

tvrgit

8,470 posts

251 months

Sunday 11th October 2020
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If there are no fluid leaks, then sounds like either master or slave cylinder is drawing in air past the piston seals on the return stroke when you lift off the pedal.

phillpot

17,105 posts

182 months

Sunday 11th October 2020
quotequote all
Sandgrounder said:
and at the same time, master cylinder had a refurb kit installed.
Hi, just read your post again, for what a master cylinder costs I wouldn't have bothered fanny around with a seal kit wink


Cheap as chips Land Rover master cylinder

Sandgrounder

Original Poster:

563 posts

143 months

Sunday 11th October 2020
quotequote all
Mike, is that a straight swap, ie. will my copper pipe screw straight into that part without any adapter?
I can recall lot's of chat on here about alternative set ups, but fairly sure mine is the original.

Just planning ahead incase of repeat failure!

SS2.

14,455 posts

237 months

Sunday 11th October 2020
quotequote all
Sandgrounder said:
Mike, is that a straight swap, ie. will my copper pipe screw straight into that part without any adapter?
I can recall lot's of chat on here about alternative set ups, but fairly sure mine is the original.

Just planning ahead incase of repeat failure!
When I had a clutch cylinder problem on my S2, the guys at Powertrack were great - very knowledgeable, and knew exactly what parts were required to save new unions having to be made.

phillpot

17,105 posts

182 months

Sunday 11th October 2020
quotequote all
Sandgrounder said:
Mike, is that a straight swap, ie. will my copper pipe screw straight into that part without any adapter?
I can recall lot's of chat on here about alternative set ups, but fairly sure mine is the original.

Just planning ahead incase of repeat failure!
No, if yours is still using the original pipe I suspect not?

But why not get it sorted out with cheapo Land Rover bits and a new pipe then any future issues are no problem?


Presumably this one from TVR Parts is correct thread for original pipe?

Or PowerTrack look like a good contact thumbup


Edited by phillpot on Sunday 11th October 09:36

Sandgrounder

Original Poster:

563 posts

143 months

Sunday 11th October 2020
quotequote all
Thanks both. Glad I asked! smile

v8s4me

7,234 posts

218 months

Sunday 11th October 2020
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Why not replace the copper with stainless braided while you're at it? You can check the fittings at each end before you make up the hose.

magpies

5,129 posts

181 months

Sunday 11th October 2020
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v8s4me said:
Why not replace the copper with stainless braided while you're at it? You can check the fittings at each end before you make up the hose.

This is the way to go cool

Sandgrounder

Original Poster:

563 posts

143 months

Sunday 11th October 2020
quotequote all
v8s4me said:
Why not replace the copper with stainless braided while you're at it? You can check the fittings at each end before you make up the hose.
V8S4me, if I had any idea what connectors to ask for at each end of the braided hose, I probably would do!? They are just connectors to me, so no idea what thread, or size to ask for.....

As it turns out, I will definitely have to sort it asap, as I went to take it for a test drive this morning, and clutch was soft. Definitely air in system again, so Master cylinder and hose need swapping out.

I'll give the company identified above (Powertrack) a call this week.

v8s4me

7,234 posts

218 months

Sunday 11th October 2020
quotequote all
Sandgrounder said:
....V8S4me, if I had any idea what connectors to ask for at each end of the braided hose, I probably would do!? They are just connectors to me, so no idea what thread, or size to ask for.....
Simples...
1. Take your new slave cylinder to your local friendly motor factor and ask him for the correct fitting.
2. Buy this and a corresponding fitting in the the opposite thread ie. if the slave was metric buy an imperial or vice versa.
3. Take your fittings home and see which one fits the the master cylinder.
4. When you know what you need order the bits from HERE.

If you want to be really clever you can plumb in a remote bleed screw with an extra bit of braided hose.

GreenV8S

30,149 posts

283 months

Sunday 11th October 2020
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v8s4me said:
If you want to be really clever you can plumb in a remote bleed screw with an extra bit of braided hose.
^^^ That! yes

Sandgrounder

Original Poster:

563 posts

143 months

Sunday 18th October 2020
quotequote all
Quick question for those of you who have messed with the clutch/brake hydraulics, is the pipe nut half inch?

I am assuming so as 12mm doesn't fit and 13mm is loose.

Thanks

phillpot

17,105 posts

182 months

Sunday 18th October 2020
quotequote all
Sandgrounder said:
is the pipe nut half inch?
Stands a good chance I'd say.

Sandgrounder

Original Poster:

563 posts

143 months

Sunday 18th October 2020
quotequote all
Cheers Mike. I have ordered a flare spanner off tinternet, as nut already looks like a previous owner has attempted to tighten it with a 13mm!