Noisy Fuel Pump

Posted by Pipesargent On 2023/9/23 13:26:46

Have a 48 Packard Deluxe with 288 engine. When running get a constant tap like a valve needs adjusting. That said went in and adjusted the valves to spec but still get that annoying tapping sound. Used a stethoscope and not hearing any particular noise valve but when put by the fuel pump it’s tapping is in sink with engine tap. So questions are… am I heading in the right direction and when mechanical pumps start to wear do they start tapping loudly?