Brake Master Cylinder

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Johnny 216GSi
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Re: Brake Master Cylinder

Post by Johnny 216GSi »

RMS1974 wrote: Sun Jan 21, 2024 1:57 pm Hi, it is a puzzle identifying parts, isn't it.

I believe that putting:-

https://www.niparts.com/index.aspx?acti ... 1=C21B86EB

brings up the part I'm after, Aisin, Apec or Girling.
Yes, sorry. Those are plastic blanking plugs on the ports I'm seeing, not a machined/cast end with the ports on the other side. My mistake.

I think perhaps you may need to stick with trying to find a 15/16" part with the ports twisted. There's one garage I know in the West Mids. and the guy can make up brand new brake lines in copper nickel flawlessly. I'm wondering if you do find a part with twisted ports, someone such as this could make up some newly routed fixed brake lines to go between the master cylinder and the balancer valve.

As in: https://www.ebay.co.uk/itm/224751668850
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Johnny 216GSi
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Re: Brake Master Cylinder

Post by Johnny 216GSi »

RMS1974 wrote: Sun Jan 21, 2024 2:42 pm
I think I'm going to see how much play I have in the lines, and see if the angled one would work, as there are a few to chose from.

That's it, I'm off to the pub now to refresh my few remaining brain cells!!

Cheers all.



Try this link: https://www.rockauto.com/en/catalog/hon ... inder,1836

Rock Auto only these days list US model data (they used to list UK and European models too but there was a high-level management decision to delete all of them... :o )

I think I just went to Honda as the manufacturer in the list, then chose 1993 as the date, and a Civic model with 1.6L engine.

You can obviously have a poke around several different years and models to see if you can find the right part. I've notice on the link I provided, some parts are specifically labelled at 15/16" bore.

I haven't found anything with straight ports yet, but who knows... The website also gives you a huge number of alternative parts and they're in stock too :clapping

Another eBay part: https://www.ebay.co.uk/itm/184836187423

And another with the ports on the wrong side but they'3re in-line, and it does have the correct bore size as the link above does: https://www.ebay.co.uk/itm/266593549961

It's like you can't get a combination of the uptilted mounting bracket, ports on the right side and untwisted :slapme It's really annoying me now...
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RMS1974
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Re: Brake Master Cylinder

Post by RMS1974 »

Hi, Thanks for all your assistance in links etc.

Interestingly this link that you provided, was the one that started my search at the beginning of this post.

https://www.ebay.co.uk/itm/184836187423

Last night I started to look at servo's with masters attached, just change the whole thing, but it's still a used part!
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Johnny 216GSi
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Re: Brake Master Cylinder

Post by Johnny 216GSi »

RMS1974 wrote: Tue Jan 23, 2024 10:32 am Last night I started to look at servo's with masters attached, just change the whole thing, but it's still a used part!

I had that thought too.

I also came across a master cylinder repair kit: https://www.autodoc.co.uk/autofren-seinsa/7875398

It even states it's for the Concerto.

However, looking at the construction of the cylinder, how do they come apart to fit the repair kit??
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GTiJohn
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Re: Brake Master Cylinder

Post by GTiJohn »

Sorry to be late to the party... The following is mainly my recollections, with a bit of EPC searching, so I may not be correct :laughing2

R8 master cylinder parts variety is complex. Unfortunately, so is the servo...

The most recently posted pic shows a single diaphragm Nissin servo which I don't believe was fitted to any Longbridge-built R8 or Concerto. It could be a Civic or Japanese-built Concerto part.

ALB-equipped cars had a twin diaphragm servo. Its Rover part number is GSM149. It is stepped and longer. It might even not be black...

If you find the correct master cylinder fitted to the 'wrong' servo, you should be able to swap it onto your servo, taking car to ensure the pushrod length is correct.

Should you wish to rebuild the master cylinder, this is possible but usually these parts are pretty durable and it does need care not to mess it up. There should be a circlip visible in the neck of the master cylinder, when it's separated from the servo. Removing this allows for the internals to be removed. There are springs but not strong ones. The rebuild kits are part numbers FDU3135EVA and FDU3136EVA.

All other Longbridge-built R8 or Concerto was fitted with a Lucas Girling servo and master cylinder, of several different types.
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Johnny 216GSi
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Re: Brake Master Cylinder

Post by Johnny 216GSi »

As usual, John knows more!

Watch the servo then - it has to be one from another ALB-equipped R8 or Concerto I suppose.

Just for completeness, the ALB master cylinder part number was GMC249 in "old money" (the original Rover / Unipart part codes before Xpart).

Similarly, the "old money" part codes for the ALB master cylinder repair kits were GRK1075 and GRK1076.

Also, I'm not sure if that repair kit aftermarket part I gave the link to above is for the ALB master cylinder.

Using John's part codes, there's the full repair kit (the latter code) available from Spain here: https://recambiosenriquesanchez.com/pro ... ion-bomba/

See if they'll ship to the UK for a reasonable price?

All of the parts you need (master cylinder, servo, repair kit) are not currently available from Xpart, it seems. But it may still be worth a phone call to Motaclan to see if they do actually have any of them in stock.

Also, you could try Lings Honda for Honda parts. Quote them the 803 Honda part code, as that is definitely the correct one for an ALB RHD Concerto. It was common to the D16Z2, D16A8 and D16A9 engines. All ALB 1.6 models had the 803 master cylinder fitted.
Last edited by Johnny 216GSi on Wed Jan 24, 2024 11:30 pm, edited 2 times in total.
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961tat
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Re: Brake Master Cylinder

Post by 961tat »

GTiJohn wrote:
The most recently posted pic shows a single diaphragm Nissin servo which I don't believe was fitted to any Longbridge-built R8 or Concerto. It could be a Civic or Japanese-built Concerto part "

I had two of these one off a R8 cabriolet and the other of a concerto 1.6 both cars had Nissin servo , whether they were on from new who can say but two is a coincidence and i remember selling RMS1974 has a Nissin on his cabriolet also .
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Johnny 216GSi
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Re: Brake Master Cylinder

Post by Johnny 216GSi »

RMS1974 wrote: Tue Jan 23, 2024 10:32 am Last night I started to look at servo's with masters attached, just change the whole thing, but it's still a used part!

Don't think this helps much, but there's someone selling an ALB servo on eBay: https://www.ebay.co.uk/itm/362631836375

Now this is the ALB part, but for cars from 1989 to 1992. Others and I have provided the later part codes for ALB servos for cars from 1993 to 1995.
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RMS1974
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Re: Brake Master Cylinder

Post by RMS1974 »

Thanks to all for their contributions.

I believe enough time has been devoted to finding a completely identical body replacement, therefore I have sourced a complete rebuild kit, although I can't be 100% sure the innards are like for like, at least the seal dimensions should be ok.

If it is like for like, a straight swap, if not I'll just use the seals, as these are likely to be the culprit anyway, I hope.(it wasn't expensive!)

Pic's attached of the kit bought and the only body complete from Kuala Lumpur!, but there is doubt whether it is an ABS version!
Screenshot 2024-01-26 at 16.16.20.png
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RMS1974
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Re: Brake Master Cylinder

Post by RMS1974 »

I DON'T BELIEVE IT!!

I just found this on Autodoc.
Screenshot 2024-01-26 at 16.48.04.png
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