Brake Pipes (layout/connections)

Technical Help for the A & K Series Metro. Please state what year and model you're referring to for better responses.
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gazza82
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Brake Pipes (layout/connections)

Post by gazza82 »

Anyone have a diagram of how the brake pipes fit to a Metro/Rover with the black tag master cylinder vertically mounted to a servo? Single connection to the calipers, not twin hoses/4-pots.

My Haynes manual doesn't mention, or show, the pipework at all!
My "Bitza" A35 contains some Metro parts ... ;)
Dave VVC
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Location: West Mids

Re: Brake Pipes (layout/connections)

Post by Dave VVC »

I'm pretty sure they are diagonally split, ie master cyl to tee piece which is screwed into restrictor valve,
side exit from tee piece to front caliper, bottom of restrictor to rear brake,.
Diag split being left front caliper to right rear brake. Right front caliper to left rear brake.
there are 2 restrictor valves, to serv each rear brake.
The master cyl has 2 exit connections, one for left end right,
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gazza82
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Re: Brake Pipes (layout/connections)

Post by gazza82 »

Cheers!
My "Bitza" A35 contains some Metro parts ... ;)
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gazza82
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Re: Brake Pipes (layout/connections)

Post by gazza82 »

Just to update everyone Dave VVC is correct.

This is one of the later split circuit type (Rover 111/114 1992-96) and feeds diagonal brakes. Unlike the early tandem type which feeds the front and rears from the lower outlet and the second front pipes from the upper. I later found a diagram that was exactly what I needed on the Rimmer parts site ..

I'm on the hunt for those real restrictor valves as new they are £140 each!! (The car this brake servo is going in isn't a Metro .. it's an Austin, but a lot older! 1959 vintage and a resto-mod so very non-standard! You'll get an idea from my avatar!)

I've also discovered that there is a difference when it comes to the vacuum hose connector as the one I bought was too big for my servo. I've found a Land Rover 200/300 non-return valve fits perfectly! (My hose connector was missing when I bought the servo/master cylinder and assumed it would be easy to find!). So that's another box-ticked on the long "to-do" list.
Last edited by gazza82 on Wed Apr 13, 2022 5:15 pm, edited 2 times in total.
My "Bitza" A35 contains some Metro parts ... ;)
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gazza82
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Re: Brake Pipes (layout/connections)

Post by gazza82 »

As mine is the later model, are the brake pipe connectors metric or imperial?
My "Bitza" A35 contains some Metro parts ... ;)
Dave VVC
Posts: 80
Joined: Thu Mar 16, 2017 7:40 pm
Location: West Mids

Re: Brake Pipes (layout/connections)

Post by Dave VVC »

I have 2 restrictors, they came off my R100 prior to my 20v conversion, I can
bring them to POL this Sat.
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gazza82
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Re: Brake Pipes (layout/connections)

Post by gazza82 »

That's for the message .. Very Interested .. but would need to be posted as I'm not going to POL.

TIA
My "Bitza" A35 contains some Metro parts ... ;)
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gazza82
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Re: Brake Pipes (layout/connections)

Post by gazza82 »

gazza82 wrote: Wed Apr 13, 2022 5:14 pm As mine is the later model, are the brake pipe connectors metric or imperial?
Answering my own question here.

They are 10mm metric pipe nuts on the master cylinder. 3/8" fit but aren't tight in the cylinder threads :?


And thanks to DaveVVC who is posting off two rear restrictor valves to me today!! ;) Which duly arrived this week (27th April). Now to find a suitable place to mount them on the Austin!
My "Bitza" A35 contains some Metro parts ... ;)
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