Valve Tap?
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Joined: Sep 2009
Posts: 11
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From: Montclair New Jersey
Car: 1987 Trans Am GTA
Engine: 5.7 Liter 350 V8 TPI
Transmission: Automatic
Valve Tap?
My '87 GTA has a noise coming from the engine when it is running that sounds like a valve tap. What could be causing this? Could it be something other than a valve tap?
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Joined: Jul 1999
Posts: 17,271
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Valve Tap?
With hydraulic lifters, you shouldn't have any noise as the rockers have zero lash. It's possible that you have a collapsed lifter that's causing the noise.
Without pulling the rocker covers for a basic inspection, there's no way to pinpoint where the noise is coming from.
Without pulling the rocker covers for a basic inspection, there's no way to pinpoint where the noise is coming from.
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