Mk 2 Master Cylinder

Everything that keeps your car in contact with the road, and from contacting other road users.
Message
Author
Forkie
Senior Member
Senior Member
Posts:905
Joined:Thu May 03, 2007 10:31 pm
Location:Cornwall
Mk 2 Master Cylinder

#1 Post by Forkie » Fri Sep 20, 2019 10:42 pm

As I have been out of the fold for a while, just thought I would check that I assume Mk 2 M/C are still unavailable ? Re - establishing the braking system on mine I must admit is my main concern.
Member Number 7392 04/07

1975 TRIUMPH 2500S AUTO ESTATE IN BRG!

DON'T TIDY UP - LEAVE IT WHERE IT FELL!!

tony
Senior Member
Senior Member
Posts:799
Joined:Sun Jun 14, 2009 5:35 am
Location:New Zealand

Re: Mk 2 Master Cylinder

#2 Post by tony » Sat Sep 21, 2019 3:32 am

Rimmers have reconditioned ones listed as available. Or you could be like us and convert your car to tandem cylinder :shock:
Tony.
1976 2500 TC. converted to S specs.

Lots of bits

1999 BMW Z3.
2006 BMW 325ti.
Hopefully not needing too many bits.




.

User avatar
Alec
Senior Member
Senior Member
Posts:2511
Joined:Sat Feb 07, 2004 7:23 pm
Location:Oswestry, Shropshire

Re: Mk 2 Master Cylinder

#3 Post by Alec » Sat Sep 21, 2019 6:51 am

Hello Forkie,

I found that they were not available some time back and a kind member sent me a second hand one which I then had reconditioned.

I didn't think about going the twin route but assume it still uses the same servo?

Alec
0465

MK1.5 2.5 P.I.
Jaguar MK 2 (Long term restoration.)
Hymer 564 Motorhome.

tony
Senior Member
Senior Member
Posts:799
Joined:Sun Jun 14, 2009 5:35 am
Location:New Zealand

Re: Mk 2 Master Cylinder

#4 Post by tony » Sat Sep 21, 2019 8:01 pm

Alec,
No, looking at Rimmers listing it seems that servo's are different.
Tony.
1976 2500 TC. converted to S specs.

Lots of bits

1999 BMW Z3.
2006 BMW 325ti.
Hopefully not needing too many bits.




.

User avatar
Alec
Senior Member
Senior Member
Posts:2511
Joined:Sat Feb 07, 2004 7:23 pm
Location:Oswestry, Shropshire

Re: Mk 2 Master Cylinder

#5 Post by Alec » Sun Sep 22, 2019 7:40 am

Hello Tony,

in that case it sems the reconditioning of the master cylinder is a cheaper solution?

Alec
0465

MK1.5 2.5 P.I.
Jaguar MK 2 (Long term restoration.)
Hymer 564 Motorhome.

johnnydog
Senior Member
Senior Member
Posts:1624
Joined:Tue May 14, 2013 12:33 pm
Location:Lancashire

Re: Mk 2 Master Cylinder

#6 Post by johnnydog » Sun Sep 22, 2019 8:34 am

Forkie wrote:
Fri Sep 20, 2019 10:42 pm
As I have been out of the fold for a while, just thought I would check that I assume Mk 2 M/C are still unavailable ? Re - establishing the braking system on mine I must admit is my main concern.
What is the problem with your old one? As long as the internal bore is not rusted or scored, I would fit new seals which are readily available. I was going to fit a new old stock item on my PI, but decided to reseal the existing one which now works perfectly, leaving the spare nos cylinder in stock for 'another day'. In the past, I have saved good used hydraulic cylinders (brake master and clutch master and slave) off breakers, but unless you totally clean them of old brake fluid and protect the internals, after a year or so, you might as well throw them, as the moisture absorbed into the old brake fluid rusts the bore rederring them virtually scrap. So if the internals are good on your old one, then I would reseal that so that it lives for another day.
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

Forkie
Senior Member
Senior Member
Posts:905
Joined:Thu May 03, 2007 10:31 pm
Location:Cornwall

Re: Mk 2 Master Cylinder

#7 Post by Forkie » Sun Sep 22, 2019 9:16 pm

Ok so basically along with everything else the M/C was worn out when I bought the car in 2006 ( which I obviously did not realise at the time). I quickly realised back then replacements were a no -go so I re sealed it - which was the only option. At that time I also did not know that my car would hold the record for the longest ever rebuild :roll: So as that brake pedal has not had a foot on it now for 11 years ( she went into hibernation in 2008 for a full underbody stripdown ) I have to assume the worst.....
Member Number 7392 04/07

1975 TRIUMPH 2500S AUTO ESTATE IN BRG!

DON'T TIDY UP - LEAVE IT WHERE IT FELL!!

tony
Senior Member
Senior Member
Posts:799
Joined:Sun Jun 14, 2009 5:35 am
Location:New Zealand

Re: Mk 2 Master Cylinder

#8 Post by tony » Mon Sep 23, 2019 4:34 am

Over the years I have had 2 master cylinders (Mk2 tandem ones resleeved in stainless steel). The people who did mine did the lot, resleeved and kitted out with new seals so it came back as new and ready to fit. Probably not much cheaper than a new one but I know that the stainless bit won't rust.
Also bear in mind that it's recommended to change the brake fluid every couple of years or so as it's hygroscopic (absorbs water, for the uninitiated) :roll:
Tony.
1976 2500 TC. converted to S specs.

Lots of bits

1999 BMW Z3.
2006 BMW 325ti.
Hopefully not needing too many bits.




.

Forkie
Senior Member
Senior Member
Posts:905
Joined:Thu May 03, 2007 10:31 pm
Location:Cornwall

Re: Mk 2 Master Cylinder

#9 Post by Forkie » Tue Sep 24, 2019 8:09 pm

Ok so what is recommended here then - bearing in mind that it was 10 odd years ago I re - sealed the M/C', AND fitted recon front calipers, AND new discs. Been dry stored since. But seen no action as it were since. I assume this is all now scrap....


I know nothing regarding the ' tandem' set up.


Obviously at the time I did not envisage this taking so long. But that's life ! Life situations change. But hey - the car is still here and so is the keenness :P
Member Number 7392 04/07

1975 TRIUMPH 2500S AUTO ESTATE IN BRG!

DON'T TIDY UP - LEAVE IT WHERE IT FELL!!

johnnydog
Senior Member
Senior Member
Posts:1624
Joined:Tue May 14, 2013 12:33 pm
Location:Lancashire

Re: Mk 2 Master Cylinder

#10 Post by johnnydog » Tue Sep 24, 2019 10:13 pm

The brake fluid shouldn't absorb moisture on an inactive car to the same extent as one in use.
My PI had been standing in a garage since 1993, and earlier this year I removed the brake master cylinder, and the internal bore was perfect. With new seals, it works fine.
The calipers were ok too - the only items that required replacing were the rear wheel cylinders which had seized, and the brake hoses. The fronts had collapsed internally and even with a compressor, I couldnt blow air through them.
I would remove it, check the bore and if not rusted or scored, reseal it. It should be fine.
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

Post Reply

Who is online

Users browsing this forum: No registered users and 15 guests