piccio
30 posts
Joined: 14/12/2004 22:04:39
Location: Olgiate Comasco (CO) Italy
What brake master cylinder
Ok everybody is it possible to fit a originally diagonal split master cylinder to a front to back system or is there something i should know about? cheers
Posted: Jan 24, 2005 12:13 AM
C. Kolios
6 posts
Joined: 08/04/2006 20:15:55
Location: Nicosia Cyprus
Need Brake master cylinder?
've noticed that i'm loosing a great amount of brake fluid from the brake master cylinder.It seems to be leaking from somewhere(probably the brake pedal) and ending on my carpet. The thing is I have a 1979 Austin Mini 998 with a Dual line Brake master Cylinder. Minispares do not have this cylinder for some reason (I've asked them by email). Does anyone know where to get one from (preferably new)?
Posted: Jul 17, 2006 05:59 AM
Tim
1850 posts
Joined: 18/10/2004 09:40:59
Location: Bournemouth United Kingdom (Excluding channel Islands)
Provided there's no internal damage (worn or scratched bore) you should be able to rebuild it easily with a kit.
Posted: Jul 17, 2006 09:08 AM
clubby man
3 posts
Joined: 24/06/2006 16:50:21
Location: United Kingdom (Excluding channel Islands)
1973 clubman brake master cylinder reapir kit
Looking for a seal kit for the brake master cylinder on my 1973 clubman. It’s a Lockheed cylinder but I cant seen to find a kit. I found a possibility on the site - part number GRK1009 van anyone confirm that this is the correct kit.
Posted: Aug 19, 2006 08:43 PM
Wanted Brake master cylinder
Wanted dual line brake master cylinder or just a plastic dual line output brake fluid container with 81mm apart holes.
Posted: Sep 18, 2006 09:06 AM
Nicky
4 posts
Joined: 23/09/2004 18:23:15
Location: DESTELBERGEN Belgium
brake circuit => master cylinder + bias valve + servo
Dear Mini friends,
I'm currently rebuilding the Mini with Metro callipers and a type 4 master cylinder + bias valve + servo which were sourced from a nineties Mini. See pictures.
Before final assembly and actually bleeding the brakes, I want to make sure I've got everything connected the right way round...in other words which port of the master cylinder connects to which one on the bias valve. I've managed to sort out the front and rear port on the bias valve based on some pictures from the internet...I guess. I would appreciate it should one of the Mini friends have a quick look under their bonnet.
Here in Belgium it's not always easy getting answers to technical questions, most enthousiasts mainly care for driving around on Sundays and barbecues.
Thanks,
Nicky.
Posted: Mar 19, 2007 10:38 PM
taffy1967
1783 posts
Joined: 27/09/2006 18:58:07
Location: Rhondda-Cynon-Taff United Kingdom (Excluding channel Islands)
Have you sorted this yet Nicky?
I'll check under the bonnet of my Mini when I get a chance anyway mate.
Posted: Mar 22, 2007 05:54 PM
Right after having to lift out my windscreen washer bottle and peering under my brake servo armed with a torch, this is how my brake bias valve is connected up on my 1990 Rover Mini Cooper (Mainstream Carburettor Model): -
First of all the pipes running from the bottom of my brake bias valve are in a different order to yours?
Namely the lower left brake pipe runs to the FRONT on my car and the lower right runs along and disappears beneath the bulkhead, no doubt heading for the REAR of the car. So I think mine are in reverse to how you have labelled yours?
Going by your numbers, number 3 on my brake bias connects to number 2 on my master cylinder and then of course number 4 on my brake bias connects to number 1 on my master cylinder.
I've double checked and that's exactly how my Minis braking system is connected, but it did have some engine/gearbox work done by a gearbox specialist a few years back. But I assumed they connected everything back right when they refitted my engine?
Well it's worked okay so far anyway, so good luck Nicky and I hope your Minis running again soon!
Posted: Mar 22, 2007 07:37 PM
Hi,
Thanks a lot for your reply!
I know the bias valve is positioned differently on my bulkhead. The "shiny nose" - with the spring located in it - is pointing on my car versus the engine, whereas in a nineties mini it's mounted on the bulkhead the other way round (facing towards the body of the car). Does that add up with what you're seeing on your car?
These parts were sourced separately (loose parts in a crate), so no way of telling how they were originally connected. My Mini originally had none of this, drum brakes all around and a very simple brake circuit.
Appreciate your help!
Posted: Mar 22, 2007 10:10 PM
To be honest Nicky I couldn't tell because my brake servo was in the way and I had a job just trying to see where the pipes went.
I'll have another look, but I'd like to know whether mine is connected up right too.
So can someone else here give us a second opinion perhaps?
Posted: Mar 23, 2007 05:42 PM
I've checked it again today Nicky and your right, my brake bias valve is facing the other way around, with the "shiny nose" part facing towards the inner wing.
Anyway you know how mine is connected now, so I guess you just have to connect yours more or less in reverse?
Posted: Mar 25, 2007 06:26 PM
Thanks a lot!
It's now perfectly clear to me how to proceed with connecting the brake circuit. Really appreciate your reply.
Regards,
Posted: Mar 25, 2007 06:37 PM
miniclare
14 posts
Joined: 29/03/2005 11:32:29
Location: Flitwick United Kingdom (Excluding channel Islands)
Brake Master Cylinder
Hello, Just wondered if anyone could help me, as I am a bit confused over all the Brake Master Cylinder repair kits available!
I need one for a 1978 Mini Saloon. My Master Cylinder has Lockheed written on it, so I think I probably need the one for a GMC 153. Although it says this type was fitted to early Mini's and Coopers?
Can anyone help?
Thanks.
Posted: Aug 19, 2007 12:02 PM
No, assuming you don't have dual circuit brakes, I think the part you need is this one: GRK1028
Posted: Aug 19, 2007 01:00 PM
Thats strange, cause when I do a search under Brake Master Cylinder's GRK1028 doesn't come up, but when I put it in on a search it does - how wierd!
Thank you, I'll give this one a try. Mine is currently leaking into the footwell of my Mini - not good! I take it the actual Master Cylinder unit is now obsolete?
Clare.
Posted: Aug 19, 2007 05:42 PM
I expect you'll be able to find one somewhere, but with luck your old one will be OK with new seals.
Posted: Aug 20, 2007 09:22 AM
Thanks Tim
Posted: Aug 20, 2007 11:09 AM
André Ferreira
1 posts
Joined: 20/02/2009 00:41:04
Location: Torres Vedras Portugal
Brake master cylinder
Hello. I am going to fit a complete 4 pot setup with 3/4" bore drum cylinders in the rear, all new. My big doubt is relative to the master cylinder. A cooper S 3" master cylinder will do, or i swould aply a dual line master without the PDWA? This is for a fast road car use. Thank you. Regards,
André André Ferreira
Posted: May 03, 2009 05:15 PM
daveyk1976
2 posts
Joined: 11/11/2006 16:42:43
Location: Ely United Kingdom (Excluding channel Islands)
Brake master cyliner bleeding
I have recently bought a seal kit for my dual circuit master cylinder (yellow band type) and was wondering if this needed to be "bench bled" prior to fitting to the car . Apparently air can become trapped between the 2 cylinders but when checking online (and in Haynes manual) I can't find any reference to this.
Any advice would be appreciated
Posted: Jan 21, 2010 04:33 AM
woodruff
29 posts
Joined: 18/02/2007 17:02:36
Location: Rome Italy
TBH i flush the complete system, then fill with brand new fluid, then bleed all brakes. I know its a long annoying work, but definately worth it.
Posted: Jan 21, 2010 05:22 PM