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Old 02-01-2008, 08:57 PM   #1
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Default Floated lifter?

Is there a way to distinguish a floated lifter, vs lets say a bent rod?
I ask because I get this tapping noise when the car first start and when I accelerate, barely hear it at idle....have not lost any power, but the tapping is getting louder.
thanks for any info
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Old 02-02-2008, 12:57 AM   #2
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an audio/video clip would help... the depth of the pitch is what will tell ya.
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Old 02-02-2008, 02:53 AM   #3
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do a oil change, then report back
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Old 02-02-2008, 12:41 PM   #4
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With the car idling put a stick or pipe to the cam cover with your ear cupped on the other end and move it around. That's an easy way to pin point a bad lifter - you'll know when you get to it, sounds like somebody tapping on the other end of the stick/pipe.

If you move your stick down to the block, the tapping SHOULD get weaker.
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Old 02-02-2008, 03:49 PM   #5
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does it stop after the car warms up?
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Old 02-02-2008, 04:16 PM   #6
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What a lot of people are hinting at is you should search HLA noise here or m.net
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Old 02-02-2008, 05:19 PM   #7
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Quote:
Originally Posted by SamS View Post
What a lot of people are hinting at is you should search HLA noise here or m.net
exactly, lifter tap sucksto hear, but its nothing to worry about
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Old 02-04-2008, 01:36 AM   #8
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I tried the screwdriver tip and sure enough I can hear the tapping as described. the tap is very consistent with the spinning cam shaft very regular...I believe a rod is not as steady but has an irregular pattern...the tapping is much louder when the car is cold, and when you first begin to accelerate. I managed to hear an audio of both off of youtube and it seems a lifter tap is audible at idle unlike a bent rod...I've since ordered the upgraded lifters and will be installing them in a week or so. Tried the Atf and lucas oil trick as well as changing the oil... didn't make a huge difference will try to get a video up in the next couple of days. Thanks all for replying.
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