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 Trendy
Commited Dubber
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| posted on July 11th, 2015 at 09:16 PM |
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Washer missing from master brake cylinder. Single early style
Washer missing from top intake grommet. I fitted up my brake lines but found a washer missing. It now leaks. What material is it made from.
Using new brake components!
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1960 Beetle sedan (Bubbles)
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Trendy
Commited Dubber
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| posted on July 11th, 2015 at 09:18 PM |
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Number 11
Tell me what it is and looks like.
I obviously need it as my new cylinder leaks
1960 Beetle sedan (Bubbles)
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psimitar
Son of Jim - Creator of Good
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| posted on July 11th, 2015 at 11:18 PM |
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More than likely a fibre washer. The red colour ones you can get packs of at Supercheap.
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 vw54
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| posted on July 12th, 2015 at 02:45 AM |
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no its a special tell washer with a rectangle hole to allow fluid flow to the cylinder
had to find not fibre as it will deteriorate with the brake fluid and clog up the ports
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psimitar
Son of Jim - Creator of Good
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| posted on July 13th, 2015 at 12:12 AM |
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I've not had a red fibre washer disintergrate on me but if it happens then best you use a copper washer or if you no any english people ask for an
old penny and file that down to fit.
As far as I can tell all the washer is doing is helping take up slack between the rubber seal and bottom of the hole in the MC so the rubber pushes up
against the rim of the MC and hence forms a good seal. You could even make the penny slightly convex to help push the rubber bung upwards 
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Trendy
Commited Dubber
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| posted on July 14th, 2015 at 09:39 PM |
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Awesome idea with penny. I have about half a kilo of the things coming back from a trip to the states. Thought the copper was useful for something.
Fortuneately I found a real washer from my old part. Helps to look with a screw driver. However after installing this again today it all still leaks.
Rubber grommet still not sealing. Hose into grommet still leaking and grommet looks like it's just poorly made. All in all I will try a slightly
larger hose in and file down a penny.
If that doesn't work I will just upgrade to something better.
1960 Beetle sedan (Bubbles)
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grumble
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| posted on July 14th, 2015 at 10:21 PM |
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Did you use a new rubber seal?
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vw54
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| posted on July 14th, 2015 at 10:43 PM |
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hopefully you have new ATE brand master cylinder and not chinese rubbish
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psimitar
Son of Jim - Creator of Good
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| posted on July 15th, 2015 at 06:12 PM |
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Are you using the original solid pipe from the reservoir? Was it's surface still nice and smooth or rusty and pitted?
I've got some left over kunifer 3/16 pipe and a sykes flarer so could make you up a new pipe if needed
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Old Dubber
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| posted on July 17th, 2015 at 12:34 PM |
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Trendy,
In my opinion the metal washer was there to keep the 6mm pipe from coming into contact with the bottom of the recess in the master cylinder.
This could potentially restrict the fluid flowing from the reservoir.
In approx 1967 the connecting line from the reservoir to master cylinder was increased from 6mm to 8mm
and a new rubber plug with a plastic elbow installed. With this set up the metal washer is not installed.
Grahame
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Trendy
Commited Dubber
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| posted on July 17th, 2015 at 02:15 PM |
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Thanks for your input people.
I am using cheap crap master cylinder you know the ones you get with a pack with other brake bits and brake lines for a few penny's.
I have used old brake line which is a little smaller in diameter to new rubber plug. New rubber plug is deteriorated and as I did find old washer it
slips in fine. Hence leak
However as I tried to fill fuel lines with fluid it leaked. Not knowing other issues like bench bleeding would have helped.
I will look online for a new set up and parts.
I like old dubbers input and I might go down that road for know. New bung and lines.
From a learner dubber thanks all.
1960 Beetle sedan (Bubbles)
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psimitar
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| posted on July 17th, 2015 at 07:16 PM |
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Don't buy steel line as they rust externally and internally. Kunifer, Copper/Nickel alloy, is far superior and complies with Oz standard J1047
N omore rust issues 
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65standard
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| posted on August 24th, 2015 at 06:41 AM |
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The new cylinders don't need the washer as the machining within the cylinder allows for the brake fluid to return to the reservoir. This is what the
washer used to do.
[size=4]If it ain't broke, fix it till it is![/size]
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