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For your own safety replace, do not repair
It's on the master cylinder on the firewall. If you do not know what a master cylinder is do a google on it and get some pics.
Under the hood at the top right corner. The brake master cylinder is also there, but the clutch is the smaller of the two.
go to autozone.com,enter vehicle info.look up brake master cylinder,then to right of screen,click on repair guide and it will show and tell you how.
theirs not 1
3/16
Master cylinder should be located at the driver's side firewall
A brake master cylinder? If you are losing brakes or brake fluid.
Check the fluid level in the master cylinder.
Add brake oil
You can find where you need to put the brake fluid on a 1987 Nissan by lifting your hood. The brake fluid reservoir is in the engine compartment, on the drivers side, attached to the master cylinder.
Brake master cylinder repair is where someone or some body fixes the master cylinder on your brakes. It is the main line to your brake apparatus. Also the master cylinder is the container for the fluid and the piston, forming part of a device such as a hydraulic brake or clutch.