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TR6 Brake MC

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Pleask

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I have a new (? I think) TR6 brake MC, the port on the front (rear brakes) fits the normal size 3/16" brake lines, the port on the rear fit's a bigger size (1/4" ?) - why?

The fittings in to the front calipers uses the standard 3/16" , so that cancels out using the 1/4" fitting/line from the MC to the front calipers.

The PDWA has the same size (feed) port (1/4") as the rear port on the MC - ah ha, a match! However, the PDWA has four ports for four individual lines to four wheels so this cancels out the use of a PDWA with a split MC in use.

Do I need an adapter from a 1/4" port that fits a standard 3/16" fitting/line? And if so where can I get one (Moss does not show one)

Many thanks all, Pat
 
A bit confused; unless there are PDWA changes between years, the PDWA has 2 lines in from the MC, and 2 lines out, one to the front, 1 to the rear.
P1020405RS.JPG
 
I know the PDWA is a safety thing, or so they say. But as the MC splits the front to rear brakes in case of failure, realistically how important is the PDWA to use as to going directly to the front/rear directly off the MC?

And secondly, is there a way to test the PDWA is working correctly?
 
Pleask said:
I know the PDWA is a safety thing, or so they say. But as the MC splits the front to rear brakes in case of failure, realistically how important is the PDWA to use as to going directly to the front/rear directly off the MC?

And secondly, is there a way to test the PDWA is working correctly?
Click to expand...
 
The only issue I am aware with the PDWA are the seals on the shuttle deteriorate and leak. Usually if that happens you can pull the connection for the warning light and see brake fluid in the switch. As far as your question about the need of the PDWA, that is entirely up to you. But just what benefit would you have by removing it?

P1020430RS.JPG
 
Thanks, there would be no benefit in removing it I agree with you, but as I am restoring the car and it's all in box's I have to ask the same question in reverse. And that is what is the benefit of installing it other than to know the fluid is leaking? And I'm pretty on top of leaking fittings, and maintaing the car in this regard.
Pat
 
Well, lets say your driving down this curvy mountain road and have to apply the brakes to make the next hairpin, but the seals on a rear brake cylinder let go about 10 miles back. Bad things might happen. With the PDWA, the little red light would have been on 9 miles back. Having said that, some folks have eliminated it. Your car, your call.
 
RGK said:
Well, lets say your driving down this curvy mountain road and have to apply the brakes to make the next hairpin, but the seals on a rear brake cylinder let go about 10 miles back. Bad things might happen. With the PDWA, the little red light would have been on 9 miles back. Having said that, some folks have eliminated it. Your car, your call.
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Pretty much all European cars were never fitted with PDWA's and you don't see us flying off the road all the time ;)

I'm not suggesting you should remove it as you have one already fitted, but in my very humble opinion it's another thing that can go wrong.

Cheers, Robert
 
rwest said:
I'm not suggesting you should remove it as you have one already fitted, but in my very humble opinion it's another thing that can go wrong.
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If we removed items that might go wrong we soon would not have a car ;)
 
RGK said:
If we removed items that might go wrong we soon would not have a car ;)
Click to expand...
But if we remove that which is unnecessary to the operation of the vehicle, it may actually become more reliable.
 
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