Thread: Lifter clacking
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Old 08-01-2020, 08:52 AM   #14
Boog
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Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 12,959
Re: Lifter clacking

Over my many years I have had two fuel pumps start clacking and sound just like a lifter peck. The springs in them some times get weak and the peck starts.
The fuel pump pushrod mates with the cam right next to the #2 cylinder lifter so that's where the sound is.
This does not explain why the pecking subsided when you pushed down on the rocker nut though.
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69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver
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