84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

brake master cylinder fitting

Old Jun 14, 2007 | 08:18 AM
  #1  
deserttoy84's Avatar
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From: san diego
brake master cylinder fitting

Well i started leaking out of the fitting on the top front of the master cylinder . Its the fitting with 2 coppers washers sealing it. Is there an alternative i can use like a 90 degree elbow? I think the threads are 3/8 npt. what could you use to seal it because im pretty sure a pipe compound or teflon was getting eaten up by brake fluid. Also what kind of hose do i buy to replace that small hose from the reservoir to that fitting?
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Old Jun 14, 2007 | 08:41 AM
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michalik_piotr's Avatar
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From: Seattle
i just replaced my both my brake and clutch masters.....can't remember what they look like right now though.......

cut and flare the line?

as long as its the right diameter any automotive house should work (thats designed to withstand brake fluid).

if you buy a new master take a good look at it and make sure it will all bolt up as far as the lines go.

i thought i'd spend a bit more and get a better one from napa, took my old one out then realized it would NOT work. had to get friend to drive me to shucks to buy another one that would work.
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Old Jun 14, 2007 | 08:58 AM
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locked stock 84's Avatar
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From: Northglenn, CO
Originally Posted by deserttoy84
Well i started leaking out of the fitting on the top front of the master cylinder . Its the fitting with 2 coppers washers sealing it. Is there an alternative i can use like a 90 degree elbow? I think the threads are 3/8 npt. what could you use to seal it because im pretty sure a pipe compound or teflon was getting eaten up by brake fluid. Also what kind of hose do i buy to replace that small hose from the reservoir to that fitting?
there should only be one copper washer
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