Master cylinder repair kits???

roverbarmy · 7th September 2016, 15:48

Does anyone know if the seals in this kit would fit the OEM master ( ie 5/8")?
Repair kit.

T-Cut · 7th September 2016, 20:34

Which master?
I suspect it's a negative for either though.

TC

roverbarmy · 7th September 2016, 22:03

The original plastic master cylinder for a 1.8 NA. I would have thought that there should be a supplier for standard sizes of piston seals somewhere out there. It's usually the piston seal that goes. I can remember buying piston seal kits years ago but repairing things seems to have gone out of the window in modern times. (Unit replacements only).

T-Cut · 8th September 2016, 09:57

Quote:

Originally Posted by roverbarmy

The original plastic master cylinder for a 1.8 NA.

I guess you mean the clutch master?

If so, I think you'll find it difficult to find a seals kit. It they were availble, everyone would fit them rater than buying expensive cylinders complete.

TC

roverbarmy · 8th September 2016, 16:03

Quote:

Originally Posted by T-Cut

I guess you mean the clutch master?

If so, I think you'll find it difficult to find a seals kit. It they were availble, everyone would fit them rater than buying expensive cylinders complete.

TC

Difficult ...... but maybe not impossible. All I need is the inner and outer measurement but I don't have a stripped OEM clutch master. Does anyone have an old OEM master they are throwing away please?

Mike

T-Cut · 8th September 2016, 19:41

I think it's a well trodden path, but remember to report back if you succeed.

TC

FrenchMike · 8th September 2016, 19:51

Quote:

Originally Posted by roverbarmy

Difficult ...... but maybe not impossible. All I need is the inner and outer measurement but I don't have a stripped OEM clutch master. Does anyone have an old OEM master they are throwing away please?

Mike

Not so simple ...

Good luck however

Mike

roverbarmy · 8th September 2016, 22:20

Thanks for the pics. It's the front seal that is under the greatest pressure. The rear is just a wiper. If I can get the measurements (or an old cylinder to measure), I may be able to source seals from a hydraulic seal manufacturer. The piston looks fairly simple to dismantle and reassemble, so if the cylinder bore is not worn, the seals should be replaceable. The seal should be the first to wear, being the softest material.

klarzy · 8th September 2016, 22:24

beware the dreaded insurance wiggle should they discover a non oem service kit or work done on a non user serviceable part...

I know, but it has to be said these days

FrenchMike · 9th September 2016, 06:52

Quote:

Originally Posted by roverbarmy

Thanks for the pics. It's the front seal that is under the greatest pressure. The rear is just a wiper. If I can get the measurements (or an old cylinder to measure), I may be able to source seals from a hydraulic seal manufacturer. The piston looks fairly simple to dismantle and reassemble, so if the cylinder bore is not worn, the seals should be replaceable. The seal should be the first to wear, being the softest material.

The front seal is made of plastic and has a very special shape ...not easy to replace

To me the weak point is the valve which may collect débris from the slave (the pressure returns to the reservoir)

After cleaning ,no more leak :

Mike

7th September 2016, 15:48	#1
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	Master cylinder repair kits??? Does anyone know if the seals in this kit would fit the OEM master ( ie 5/8")? Repair kit. __________________ Oil in my veins!

7th September 2016, 22:03	#3
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	The original plastic master cylinder for a 1.8 NA. I would have thought that there should be a supplier for standard sizes of piston seals somewhere out there. It's usually the piston seal that goes. I can remember buying piston seal kits years ago but repairing things seems to have gone out of the window in modern times. (Unit replacements only). __________________ Oil in my veins!

8th September 2016, 22:20	#8
roverbarmy This is my second home Roverless + 1.7D Sportage Join Date: Aug 2014 Location: East Norfolk Posts: 7,050 Thanks: 729 Thanked 2,021 Times in 1,449 Posts	Thanks for the pics. It's the front seal that is under the greatest pressure. The rear is just a wiper. If I can get the measurements (or an old cylinder to measure), I may be able to source seals from a hydraulic seal manufacturer. The piston looks fairly simple to dismantle and reassemble, so if the cylinder bore is not worn, the seals should be replaceable. The seal should be the first to wear, being the softest material. __________________ Oil in my veins!

8th September 2016, 22:24	#9
klarzy This is my second home none but not gone Join Date: Mar 2013 Location: March, Cambs Posts: 16,437 Thanks: 894 Thanked 4,247 Times in 3,025 Posts	beware the dreaded insurance wiggle should they discover a non oem service kit or work done on a non user serviceable part... I know, but it has to be said these days __________________ [SIGPIC][/SIGPIC]….All praise Bananaswan….

7th September 2016, 20:34	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	Which master? I suspect it's a negative for either though. TC

8th September 2016, 19:41	#6
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	I think it's a well trodden path, but remember to report back if you succeed. TC