There are a number of websites on the internet that offer Brake Master Cylinders for sale online. Some websites you may be interested in include Auto Parts Warehouse and Pep Boys.
The clutch master cylinder and the brake master cylinder are part of the same system . Both can be filled at the brake master cylinder using brake fluid
You ONLY lose brake pressure if you have a leak somewhere ! - This can be in any wheel cylinder , the master cylinder, or a fractured brake line. Till you find the leak, keep your master cylinder topped up daily.If the brake fluid reservoir remains full and the brake pedal sinks to the floor as you are waiting at a stop light, the master cylinder is at fault.
The brake master cylinder would be bolted to it.
you look for it.
Look in the engine compartment on the firewall. If not there look under the floor on the drivers side. If not there crawl under the motor home and follow the brake lines and they will lead you to the master cylinder.
In a Classic Beetle, it's screwed into the master cylinder. New Beetles will have it in the vicinity of the brake pedal lever.
On some pre 60s cars it is located under the vehicle below the driver's position floor. There is normally a panel you remove to access the master cylinder. The brake pedal lever connects to the master cylinder so just see where the brake lever is connected and see where the lever goes. Follow that and you will find the master cylinder.
Sure. Sometimes it's integral to the master cylinder. But some master cylinders have a separate brake fluid reservoir that is connected by either a fluid tube or fit into an "O" ring seal on the master cylinder. You need to find out what kind you have and what you'll need to replace it. If you can't find a replacement master cylinder reservoir any other place, you'll need to get one either from a dealer or a wrecking yard.
Follow lines from master cylinder through ABS control to each individual wheel cylinder
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.
Find the source of the leak. Most likely areas are a brake line at the wheels, or the master cylinder at the upper part of the firewall in the engine compartment.
It is located on the engine bay's firewall, very close to where the brake's master cylinder is mounted.