280zx brake master

Karljsw · Post by **Karljsw** » Tue Jun 28, 2016 3:05 pm

hey guys

my brake master cylinder is leaking where it joins onto the booster.

just wondering if anyone has rebuilt one before or know where to get a kit to rebuild one? have done a Google search to no prevail.

other wise I'll have to get a new unit off ebay which might end up being the cheaper option

merlin · Post by **merlin** » Tue Jun 28, 2016 6:33 pm

Try Just Brakes in Penrose. I used them for a kit 2 years ago. It is easy to it yourself.
Stirling Brakes in Onehunga are good for service, advice and supplies as well.

maaaaark · Post by **maaaaark** » Wed Jun 29, 2016 6:37 pm

they are still a standard stocked part I believe, otherwise I'm pretty sure I have one sitting in the garage

Karljsw · Post by **Karljsw** » Tue Jul 05, 2016 6:23 pm

Just took the master off the car. Looks like it is a 7/8 master with a 280zx booster.

Should I replace this with a 15/16 or the wilwood 1" for front and rear discs?

Andy · Post by **Andy** » Wed Jul 06, 2016 2:34 pm

Start with the 15/16" (if you can find one) there are many variables, engine weight, swept area, calliper piston size, pedal ratio, proportioning ratio etc.

The 15/16" swap appears most common and is the easiest, your results may differ.

A twin master cylinder setup is the most configurable but is far from stock.

bernjean · Post by **bernjean** » Wed Jul 06, 2016 3:02 pm

I have a 15/16 in my car. Toyota Calipers, non vented but slotted and drilled discs, Maxima calipers on the rear, again only slotted and drilled discs. Brakes work great, need good foot pressure though.

merlin · Post by **merlin** » Wed Jul 06, 2016 5:08 pm

I have a similar set up as Bernjean. Toyota 4pots and vented Honda Legend rotors. I used a 1 inch m/c from a Nissan patrol. Straight bolt on and way less pedal travel.