You can make an oil seal for almost any hydraulics with your own hands, the main thing is to have perseverance and a great desire. To ensure that the oil seal does its job perfectly and that the brake fluid does not leak, take it seriously.
Instructions
Step 1
First, pick up the rubber. You can use regular water faucet rubber gaskets, which are easy to bend and are quite sturdy, but keep in mind they should be made of oil resistant rubber. Otherwise, your packing life will end too quickly.
Step 2
Take a drill, clamp the rod on which the gasket is placed. Turn on the tool and use a sharp knife to work on the rubber band so that it looks like a standard one. Make the bottom part about the thickness of a plastic washer, you can add a little thickness under the piston.
Step 3
Sand the edges of the piston with a zero so that they are sufficiently even and smooth. This will ensure it works well in the future. Grind down from the inside at the top of the piston wall to an acute angle. The outside of the piston should expand upward in approximately the same way as a standard piston.
Step 4
Make sure that the gland is firmly seated with a spring-loaded plastic cap to prevent possible leaks. The hole in the middle should fit snugly around the aluminum piston.
Step 5
If the piston stroke is tight, then try to disassemble the structure and pump with lubricant, the piston should begin to move effortlessly. If you have not found any leaks, and your piston stroke is not too tight, then you can leave everything as it is. However, be extremely careful: too heavy a piston stroke can damage it, which will entail the purchase of a new one.
Step 6
If you notice a leak, then most likely you will have to work on the piston more. This may be due to damage to the piston during assembly, for example, it may have holes or curvatures. Such a piston is not suitable for further use.
Step 7
If the handle moves easily enough, no leaks are observed, then you can be congratulated on a good result. You did everything right.
