Twingo C01 drum brakes proportioning valve - Page 2 - Renault Forums :: Independent Renault forum

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post #6 of 15 (permalink) Old 23rd September 2016
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Re: Twingo C01 drum brakes proportioning valve

If not one fitted,, have you checked pistons are moving freely in the wheel cylinders,,
Drum off, press on one of the brake shoes, the piston should move, as one piston moves in, the other side of cylinder, piston should move out ..
Not changed rear cylinders on it ,,, since you have had it,, wheel cylinders can look identical on the outside, and fit , but they use different size pistons,, for different applications

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Re: Twingo C01 drum brakes proportioning valve

If a proportioning valve in system, do we know if a mechanical valve, which would be on rear suspension/arms somewhere.
Or electronic unit, which could be anywhere or even part of ABS unit.
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post #8 of 15 (permalink) Old 23rd September 2016 Thread Starter
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Re: Twingo C01 drum brakes proportioning valve

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Originally Posted by ours2012 View Post
If not one fitted,, have you checked pistons are moving freely in the wheel cylinders,,
Drum off, press on one of the brake shoes, the piston should move, as one piston moves in, the other side of cylinder, piston should move out ..
Not changed rear cylinders on it ,,, since you have had it,, wheel cylinders can look identical on the outside, and fit , but they use different size pistons,, for different applications
Will check that next weekend
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Re: Twingo C01 drum brakes proportioning valve

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Originally Posted by Dancingdad View Post
If a proportioning valve in system, do we know if a mechanical valve, which would be on rear suspension/arms somewhere.
Or electronic unit, which could be anywhere or even part of ABS unit.
It's a no ABS model. I think it has proportioning valve in a master cylinder. That's why i asked if sagging front end can be a problem.
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post #10 of 15 (permalink) Old 23rd September 2016
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Re: Twingo C01 drum brakes proportioning valve

Tried looking at this from the other direction.
The valve number you gave TRW GPV1177 leads me here.
Analog parts of manufacturer: RENAULT - 770832859
Complete with pretty picture.
Which looks like a mechanically operated valve that would normally be on rear suspension somewhere.
Specifically says fitted to the CO6 models but you would need to work out what one of them is.

All I can suggest is looking round the suspension areas and seeing if you can find it.
If not, I reckon there isn't any proportioning valve as standard and any load sharing is down to brake design.
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brakes , c01 , drum , drum brakes , proportioning , proportioning valve , twingo , valve

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