Materials:
* Sheet of cardboard 0.5-1 mm thick
* Release paper
* Adhesive for gaskets
* Scissors
* Ruler or square
* Pencil
Tools:
* Sharpening machine (for sharpening a pencil)
* Marking awl
* Press (for squeezing out the gasket)
Instructions:
1. Preparing a gasket template
* Clean and degrease the old gasket.
* Place the old gasket on a piece of cardboard.
* Trace the outline of the gasket with a pencil, leaving a small gap (1-2 mm) around the perimeter for free movement of oil.
* Cut out the cardboard template according to the drawn outline.
2. Making a new gasket
*Apply a thin layer of spacer adhesive to the cardboard template.
* Place a sheet of release paper over the template, making sure it lies evenly across the entire surface.
* Smooth out the paper to remove any air bubbles.
* Trim off excess paper around the perimeter of the template.
3. Squeezing out the gasket
* Place the assembled gasket into a press with a guide ring slightly larger in diameter than the inner hole of the gasket.
* Press the press with enough force to press out the gasket of the required thickness.
* Remove the spacer from the press and remove it from the template.
4. Final processing
* Clean off any glue from the protruding edge of the gasket.
* Check that the gasket is properly manufactured, making sure that it matches the contour of the valve body surface.
* If necessary, trim the edges of the gasket in place.
Adviсe:
* Use a sharp, finely-sharpened pencil to accurately trace the outline of the gasket.
* Apply a thin layer of glue to avoid squeezing it out from the edges of the gasket.
* Press the press evenly over the entire surface of the gasket.
*Allow the gasket to dry before installing.
Warning:
* Be careful when working with knife and scissors.
* Wear safety glasses when working with the press.