rudypoochris Posted July 25, 2007 Share Posted July 25, 2007 I am rebuilding a 15/16 Nabco 280zx MC (seperate reservoir). It has been sitting fluidless for over a year and had a bit of corrosion on it. Most of that came off with a bit of penatrating oil and fine steel wool. Anyway, to the point. I am sitting here now with a disassembled master, and a rebuild kit. I start feeling around in the bore and notice that there is a spot about halfway down the master. There is slight pitting in the bore in a 1/4" diameter patch opposite the first reservoir. I am basically wondering if this pitting is typical and not to be worried about or if it is acceptable and par for the course. The spot was mostlikely created from metal to metal contact at the end of the first piston. If it is typical there is no point in going to the JY for another used one, I will just cough up the money. Also, my MC bleeders are rusted and need to be replaced. Are they a standard size, is there a metric and an inch version? Where does one order them? Thanks. Quote Link to comment Share on other sites More sharing options...
auxilary Posted July 26, 2007 Share Posted July 26, 2007 I just bought a 5/8 new unit by beck/arnley for 37 bucks. came with reservoir too. sometimes, it's just worth i t to get a new unit (i know you said 15/16) Quote Link to comment Share on other sites More sharing options...
rudypoochris Posted July 26, 2007 Author Share Posted July 26, 2007 Hmm, thats got me thinking. You bought that MC for your Z? I might look into Z32 or Z31 masters, the 17/16 units. Quote Link to comment Share on other sites More sharing options...
Pop N Wood Posted July 27, 2007 Share Posted July 27, 2007 The pitting is no good and will need to be removed with a hone. Just get a new one and be done with it. Quote Link to comment Share on other sites More sharing options...
auxilary Posted July 27, 2007 Share Posted July 27, 2007 Hmm, thats got me thinking. You bought that MC for your Z? I might look into Z32 or Z31 masters, the 17/16 units. yep. brand new, $37 shipped from kragen.com Quote Link to comment Share on other sites More sharing options...
auxilary Posted July 27, 2007 Share Posted July 27, 2007 To clarify, for some reason I thought he meant CLUTCH. I bought a brake MC in 15/16 from kragen for 50 bucks the stock clutch is 5/8ths Quote Link to comment Share on other sites More sharing options...
260DET Posted July 28, 2007 Share Posted July 28, 2007 Can you get them bored and resleeved in the US? This service is available in AU using a SS liner, handy too if you want to change the ID a bit. Quote Link to comment Share on other sites More sharing options...
Trevor Posted July 30, 2007 Share Posted July 30, 2007 http://www.applehydraulics.com/brakes.htm Quote Link to comment Share on other sites More sharing options...
rudypoochris Posted July 30, 2007 Author Share Posted July 30, 2007 Gollumn was able to pull a 280zx master from the JY. The bore was in much better shape and I will use that one. I guess they aren't all pitted. It does have some brown stains from brake fluid though. Quote Link to comment Share on other sites More sharing options...
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