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Model specific boards => Golf mk2 => Topic started by: Mattyj on 13 October 2016, 15:56

Title: Brake master cylinder size
Post by: Mattyj on 13 October 2016, 15:56

As above for an 89 16v got home and measured with a vernier no help apparently its 22mm bore? Where is this measurement taken from?

Title: Re: Brake master cylinder size
Post by: h8v on 14 October 2016, 07:49

This seems to be the correct one...https://www.vwheritage.com/shop/mk2-golf/1H1611019B/master-cylinder-mk2-golf-gti-16v-g60-t4-90-95-no-abs/?crumbStartPage=1&crumbStartRow=1

22.2mm is the diameter of the piston and bore in the middle of the thing.  You won't get to see it unless you take it all apart.

The 22mm one is both better and cheaper than the other 20.64mm mk2 master cylinder.

Title: Re: Brake master cylinder size
Post by: lemski on 14 October 2016, 08:21

If you ring up euro car partsand ask for a g60 master cylinder thats the better one. Fits direct. They may ask 2 or 4 port. If they dont itll be a 4 port but you just need two planking plugs or two bleed nipples in the ones you dont use. Well worth the upgrade though

Title: Re: Brake master cylinder size
Post by: Mattyj on 14 October 2016, 09:43

Thought mine had 4 but only has 2

Title: Re: Brake master cylinder size
Post by: lemski on 14 October 2016, 18:29

Yeh mk2 has 2 but g60 master cylinder has 4

Title: Re: Brake master cylinder size
Post by: Mattyj on 14 October 2016, 19:31

How come the g60 has 4?

Title: Re: Brake master cylinder size
Post by: gazareth on 14 October 2016, 20:04

what kind of difference does it make to the brake feel when you fit a g60 one?

Title: Re: Brake master cylinder size
Post by: lemski on 15 October 2016, 09:16

The brakes come on a little sooner. Better feel to the pedal.
Less pressure is needed to slow the car.
A must have upgrade especially when you put 288mm discs up front

Title: Re: Brake master cylinder size
Post by: gazareth on 15 October 2016, 20:06

I always thought that a wider bore master cylinder would make the pedal harder with less travel.

Title: Re: Brake master cylinder size
Post by: lemski on 16 October 2016, 07:58

Thats what ive just said. Brakes come on sooner...
My explanation may not have been the best. Haha

Title: Re: Brake master cylinder size
Post by: Mattyj on 16 October 2016, 11:33

Made sense to me 🙈