Tapping noise from engine. - ZR-1 Net Registry Forums

robbz28 · 09-20-2012

hen i crank up my car there is a distinct tapping noise that sounds like a lifter ( trying to give a comparison for sound) it does increase with rpms but gets unnoticeable after about 1200 rpms. I need to run the engine a while and let it get up to operating temp to see if it remains. Any clues? Is this a "normal" sound for these engines? Its not real loud but you can hear it clearly at idle tat-tat-tat-tat-tat...

09-20-2012	#1
robbz28 Join Date: Aug 2012 Location: Louisiana Posts: 74	Tapping noise from engine. hen i crank up my car there is a distinct tapping noise that sounds like a lifter ( trying to give a comparison for sound) it does increase with rpms but gets unnoticeable after about 1200 rpms. I need to run the engine a while and let it get up to operating temp to see if it remains. Any clues? Is this a "normal" sound for these engines? Its not real loud but you can hear it clearly at idle tat-tat-tat-tat-tat... __________________ [SIGPIC][/SIGPIC] 1991 ZR1 #144 421 rwhp 392 rwt 2012 Toyota Tundra Crewmax 4x4 5.7 liter 1967 Ford Mustang resto-mod coupe 289 (Sold) Last edited by robbz28; 09-20-2012 at 12:11 PM.