JamesyCottony
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| posted on 8/9/15 at 07:03 PM |
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Austin Metro 1984 Hose assembly brake vacuum
Anyone have any idea where I can get a Brake servo pipe for a Austin Metro 1L 1984? Looked at local scrapie and online and no luck 
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minitici
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| posted on 8/9/15 at 07:29 PM |
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The metal pipe with the banjo which screws into the manifold?
eBay Item
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britishtrident
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| posted on 8/9/15 at 07:40 PM |
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Do a search on eBay UK for brake servo hose.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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JamesyCottony
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| posted on 8/9/15 at 08:43 PM |
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Thanks for the replies, the thing is im not really sure how it fits on and work, there is a hole in the servo with a rubber grommit in and the other
end is a threaded hold on the inlet manifold?
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JamesyCottony
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| posted on 9/9/15 at 02:30 PM |
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Anyone? 
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JamesyCottony
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| posted on 9/9/15 at 02:42 PM |
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This is the manifold end with the banjo nut in:
and this is the Servo end, just a hole with rubber grommit:
Does the ebay item posted fit this? and if so what else do I need for it as the Haynes manual shows the servo end with a plastic plug that goes in to
the grommet then a rubber pipe attaches to that
[Edited on 9/9/15 by JamesyCottony]
[Edited on 9/9/15 by JamesyCottony]
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rash12
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| posted on 9/9/15 at 05:09 PM |
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try rimmer bros they are online im sure they will sort you out
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JamesyCottony
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| posted on 9/9/15 at 05:16 PM |
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Called them, they dont have any and say that there is no chance I can get new ones anymore, thinking of making my own
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rash12
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| posted on 9/9/15 at 05:29 PM |
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the steel banjo bit on ebay 121749847605 and might be able to doctor this 381390804591 for the rest
[Edited on 9/9/15 by rash12]
[Edited on 9/9/15 by rash12]
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rusty nuts
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| posted on 9/9/15 at 05:50 PM |
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The part that fits into the servo is a one way valve, without the valve you will have problems . I would have thought the valve would be available
from suppliers of classic car parts, the banjo fitting from eBay or possibly a hydraulic specialist, you don't need to use a metal pipe just use
a length of servo hose DO NUT USE normal hose , it will collapse
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JamesyCottony
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| posted on 9/9/15 at 07:43 PM |
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Anyone know where I can get that non return valve? If I got eBay item: 381390804591 would it work as it is for a MPI 1998 mini whereas my metro engine
is carb and 1984? I could just ad a one way valve in the line but how would I attach the servo pipe to the servo? Dad also suggested I use a bsp 90
degree taper instead of the banjo, surely this would work?
[Edited on 9/9/15 by JamesyCottony]
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rash12
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| posted on 9/9/15 at 07:53 PM |
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maybe one of these ebay 251931228730
[Edited on 9/9/15 by rash12]
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JamesyCottony
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| posted on 9/9/15 at 08:08 PM |
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quote:
Originally posted by rash12
maybe one of these ebay 251931228730
[Edited on 9/9/15 by rash12]
Legend, this may work?! Thanks for everyone's help. Is there a point to using the banjo or could I use and tapered 90 degree connector and use a
one way valve? Also which way would the one way valve work? I'm guessing it would be to lock pressure in the servo....
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rusty nuts
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| posted on 10/9/15 at 05:32 PM |
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The servo should not have any pressure, the servo woks on vacuum
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JamesyCottony
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| posted on 10/9/15 at 06:19 PM |
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So which way would the non return valve go? Also can i use any non return valve or does it have to be specific to gas (air)?
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rash12
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| posted on 10/9/15 at 06:41 PM |
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rusty nuts
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| posted on 10/9/15 at 07:21 PM |
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quote:
Originally posted by rash12
WRONG WAY
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JamesyCottony
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| posted on 10/9/15 at 07:23 PM |
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What's the physics behind which way it goes? Please
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Dick Axtell
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| posted on 10/9/15 at 07:27 PM |
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Servo NRV
That shwn in the photo was produced by Alfmeier Prazision AG. Check out their web page here :-
http://www.afrna.com/Pages/EngineSystems.aspx
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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adithorp
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| posted on 10/9/15 at 07:36 PM |
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quote:
Originally posted by Dick Axtell
That shwn in the photo was produced by Alfmeier Prazision AG. Check out their web page here :-
http://www.afrna.com/Pages/EngineSystems.aspx
Rusty is right though, the picture is wrong. Air is sucked out of the servo into the manifold. The valve stops it returning so holding the vac'
in the servo. The arrows (just visible on the yellow bit) on the valve shows the direction the air can pass.
You should be able to find a servo pipe (usually plastic) at the scrappers with both the servo fitting and an in-line valve. You'd just need the
modify the other end with a bit of servo hose and a banjo.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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rusty nuts
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| posted on 10/9/15 at 07:37 PM |
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The depression in the inlet manifold draws air out off the servo creating a vacuum ,
Must type quicker
[Edited on 10/9/15 by rusty nuts]
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JamesyCottony
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| posted on 10/9/15 at 07:40 PM |
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Thanks everyone for that, so go to the scrappys and look for any 1980's/1990's car and it should have a servo pipe on that I can just
modify and use on the metro?
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Dick Axtell
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| posted on 10/9/15 at 07:57 PM |
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James, I may have one such NRV knocking about my lock-up. Will hopefully get it tomorrow.
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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JamesyCottony
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| posted on 10/9/15 at 07:59 PM |
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Also if I cannot find one with a non return valve and so I need to make my own these are the parts I would need:
Plastic barbed elbow connector to go into servo (as posted by rash12 thank you)
Vacuum hose
Non return valve (can any valve be used for this? or does it have to be air specific?)
Banjo Tail (already have banjo bolt)
washers for Banjo
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JamesyCottony
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| posted on 10/9/15 at 08:01 PM |
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quote:
Originally posted by Dick Axtell
James, I may have one such NRV knocking about my lock-up. Will hopefully get it tomorrow.
Ahh cool, ok well no need to make a special trip just for it but if you have a working one that might be perfect. Thank you
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