The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Ticking/tapping noise, 305 Chevy, Can't Figure it Out!

Rust-O-Matic · 04-04-2017, 09:45 AM

Update:
The ticking is gone! It was the fuel pump itself. I replaced it with a new ACDelco unit (which happens to come in a plain white box and has the same part number as a cheaper Airtex pump) and the noise vanished. I could feel the slop on the old one where the arm pivots once it was removed.

Apparently the noise and rubbing of my rocker arms against the valve cover was a separate issue altogether. Now to find some better fitting covers...

Thanks for all the input and suggestions, I'm super glad to get this resolved.

04-04-2017, 09:45 AM	#20
Rust-O-Matic Registered User Join Date: Apr 2015 Location: Gallatin, MO Posts: 295	Re: Ticking/tapping noise, 305 Chevy, Can't Figure it Out! Update: The ticking is gone! It was the fuel pump itself. I replaced it with a new ACDelco unit (which happens to come in a plain white box and has the same part number as a cheaper Airtex pump) and the noise vanished. I could feel the slop on the old one where the arm pivots once it was removed. Apparently the noise and rubbing of my rocker arms against the valve cover was a separate issue altogether. Now to find some better fitting covers... Thanks for all the input and suggestions, I'm super glad to get this resolved.