JChase

Are mechanical fuel pumps suppose to be REALLY noisy. I recently noticed my fuel pump making alot of noise while it's pumping. I can hear it with my hood closed from 30 feet away. My car isnt stalling or surging so it doesnt seem to be malfunctioning, its just f*ckin' loud!!! By the way this is my first carb/mechanical engine. The only other classic Ive owned was a '64 Impala w/ a fuel injected LT1, so sorry about the dumb questions.

Starfury

Generally, no. What kind of sound is it? If the return spring fails (which isn't uncommon) they can make a loud tapping. Are you sure it's coming from the fuel pump?

JChase

It is a loud tapping noise. Sounds like a noisy old pump and when I put my hand on it you could feel the tapping.

67mustang302

It shouldn't be doing that

Starfury

Nope, I bet the return spring busted. Noise should go away when you replace it

67mustang302

Get it fixed before it bashes the eccentric out of round

mat11089

just replace it theyre like 15 bucks from an auto parts store.