Engine Tapping Noise
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Engine Tapping Noise - 10/2/2006 2:22:32 PM
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audiadi
Posts: 1
Joined: 10/2/2006
Status: offline
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Hello everyone!
I need your help. I have 1992 Audi 100S with 2.8L V6 12V with engine noise problem. This only occurs on cold start-up or when car sits for a long time (i.e. over the weekend); it sounds like valve/lifter tapping (after warm-up it goes away; oil pressure very good too). So I did some research and it sounds to me that I have bad oil check valves in engine valley and heads. I cannot find any aftermarket vendor that has them in stock, is this a dealer item? I hope not, lol. Can anyone help?
Thanks, Adis
P.S. Car had 102K miles on it.
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RE: Engine Tapping Noise - 10/2/2006 7:08:19 PM
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kakarot
Posts: 1561
Joined: 8/24/2005
From: Brooklyn, NY
Status: offline
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102K ye probably lifetes. use syntetic and go one value below 15W use 10W etc...
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RE: Engine Tapping Noise - 10/3/2006 12:18:11 AM
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InExile
Posts: 854
Joined: 3/1/2006
From: Black Mountain, NC
Status: offline
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the ifamous hydraulic valve lifters
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RE: Engine Tapping Noise - 11/6/2006 12:15:17 AM
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TommyL
Posts: 196
Joined: 11/5/2006
From: Surrey
Status: offline
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maybe its time for an engine flush?
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RE: Engine Tapping Noise - 11/8/2006 10:38:54 AM
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InExile
Posts: 854
Joined: 3/1/2006
From: Black Mountain, NC
Status: offline
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engine flush is a myth ... used by bad mechanics to scam you out of money
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RE: Engine Tapping Noise - 11/8/2006 6:10:18 PM
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TommyL
Posts: 196
Joined: 11/5/2006
From: Surrey
Status: offline
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when my valves start ciking, i add a bit of auto tranny fluid to oil, and that flushes it good and stops the ticking.
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RE: Engine Tapping Noise - 11/8/2006 6:49:05 PM
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Ninam
Posts: 273
Joined: 11/8/2006
Status: offline
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I think I had the same problem ('93 audi 90s). It was actually the water pump bearing, but I started noticing leaks after a month or two.
I took her to AutoZone and the guy said: "It sound like a normal BMW motor!"  ...wtf?
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RE: Engine Tapping Noise - 11/10/2006 12:06:57 PM
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kakarot
Posts: 1561
Joined: 8/24/2005
From: Brooklyn, NY
Status: offline
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you can use tranny oil to flush the engine, but that wont help the lifters, the oil will not clean out the lifters. Nothing does. I use 0w-40 and that keeps my lifters quit, even on cold days, I will hear 2 3 clicks and its gone. thats after parked for a week.
_____________________________
http://www.geocities.com/kakarot1232001/art/index.htm
Go here to check for Updates
New Videos and Article.
Also for DIY on Heater core and timing belt
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