84 GL wagon 1.8 non-turbo 4x4.
The past few days when I start the motor, it sounds like the starter motor gears aren't fully engaging, kinda goes in and out and I hear the sound of metal teeth grinding. So far, it seems to be worse when the car is cold. I have been parking on hills just in case, but it has started the last 10-15 times, sometimes with noise, and sometimes with none. The starter is hardwired to a push button toggle on the dash as the ignition switch went out 10 years ago.
Do I need a shim job, or a complete overhaul. Could it be an electric problem? More importantly, is this something that needs immediate attention? - Will I do unrepairable damage if I let it go too long? I have a hunch, but would like to hear the voice of experience.