An inclinometer also known as a clinometer is an instrument for measuring angles of slope (or tilt), elevation or inclination of an object with respect to gravity. Also known as a tilt meter, tilt indicator, slope meter, slope gauge, gradient meter, gradiometer, level gauge, level meter, pitch & roll indicator. This page will help you fix your inclometer.

In the Daihatsu-Feroza, it is located at the center of the dashboard, in between the voltmeter and the digital clock.
dettach face
get inclinometer (unplug wire)
unscrew and dettach everything

puncture a small hole
inject oil
plug hole with hot glue
change bulb if necessary

assemble everything and attach to dashboard.