Author Topic: Brake Pressure Regulator  (Read 2046 times)

Offline philstar

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Brake Pressure Regulator
« on: 26 June 2018, 13:34 »
I have a constant ratting coming from the NSR of my (slightly lowered) 16v - when I apply brake pressure it stops which leads me to believe it is the brake pressure regulator.

I had a look and the spring was indeed loose - so I moved the bottom bolt to the very end of the adjuster slot (only about an extra 10mm) but I can still hear the ratting.

The regulator itself opens and closes very easily. I cannot find any pictures of the correct operation of these components - the problem being that I don't know which position is open and which is closed. Does anybody have any photos they can share that will clear things up? All the posts I've found on the internet no longer have the photos attached.
1988 Atlas Grey VW Golf Mk2 16V GTi [F748 FGT]
Rebuilt: fuel pump housing | suspension | gear linkage | aluminium radiator

Offline philstar

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Re: Brake Pressure Regulator
« Reply #1 on: 26 June 2018, 19:15 »
...so the rattling was actually a loose rear wheel bearing, it keeps coming loose for some reason. I have new discs pads and bearings to go on during the weekend so I'll inspect everything then.

However, my initial confusion still stands regarding the operation of the brake pressure regulator, if anyone has any detailed labelled photos I would be most appreciative!
1988 Atlas Grey VW Golf Mk2 16V GTi [F748 FGT]
Rebuilt: fuel pump housing | suspension | gear linkage | aluminium radiator

Offline gazareth

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Re: Brake Pressure Regulator
« Reply #2 on: 29 June 2018, 10:44 »
when you lower the car it puts more tension on the spring. so ideally you want to adjust the bolt slightly up from its original position. depends how much its lowered by though. and i'm not sure how sensitive the valve are to minor adjustments.

Offline th3_f15t

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Re: Brake Pressure Regulator
« Reply #3 on: 02 July 2018, 08:04 »
Handy information as I need to replace mine on my GTI as it's failed. Cheers for posting this up.

Moving over to Flickr, sorry for the broken picture links!