I own an old Proton Iswara manual 1.5. At times, I have problem starting the engine. It gives a tick sound but it doesn't work. I need to turn the key a few times to get it running. My car has already installed with a starter relay long time ago. In fact, I have just replaced a new relay. But the problem still persists.

I read somewhere that by giving a knock on the starter could probably fix the problem; that if the starter has no problem. Could someone tell me where exactly where is the...