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Old 07-28-2017, 04:59 AM   #26
Boog
laying low
 
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Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,007
Re: Engine issue tap, tap, tap tap, tap, tap

Worth mentioning here is the mechanical fuel pump can peck too and sound just like a lifter. In my many years I have had two pumps do this. The spring inside gets weak on some allowing the slack at the pushrod causing the peck. Since the fuel pump is located directly under #2 cylinder it is easily missed as the cause. AC pumps usually last longer than others.
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Boog
69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver
primer is finer
91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said.

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