When
Before reinstalling a piston that you removed
Items required
Dry, lint-free tissue
Light source
Isopropanol
Follow these steps
Inspect the piston for signs auf damage.
TIP
Hold the rear side of the piston into the light. The refraction of the light makes dirt particles appear larger.
Even if the piston seems to be clean: Hold the piston and carefully move your fingernail over the piston surface. You should not feel inconsistent or rough areas.
Depends on the situation:
Situation | Action |
---|---|
No damage visible, no inconsistent or rough areas | 1. Carefully rinse the piston, using isopropanol. 2. With a dry, lint-free tissue, rub the piston several times. 3. Reinstall the piston. |
Piston is scratched or scored | Install a new piston. |