tapping sound on startup 93 90q

[achoeypatkul@hqfaus01.unicef.org (Amnat Choeypatkul)]

     Hi Audi Gurus,
     
     My car--'89-90, also has exactly symptom below.  (It sounds like a 
     stuck/bad "valve lifter."  But, I'm not so sure about it.)  Is this a 
     common problem of the 90 series?
     
     Did anyone has it fixed?  And, how much did it cost you?
     
     'enjoy cruising,
     Nat
     Internet: achoeypatkul@unicef.org
     
     '89-90 (68+K miles)/2nd owner
     '82-Maxima (198+K miles)
     
     
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     >Date: Mon, 14 Jul 1997 19:11:40 -0400
     >From: "Paul Dansereau" <ojpdanse@mb.sympatico.ca>
     Subject: tapping sound on startup 93 90q
     
     I have a 93 90scq with the 2.8l v6 and when i start it from dead cold 
     it makes a sound almost like the valves are rattling. This sound goes 
     away about thirty seconds after startup and doesn't come back until i 
     leave it overnight. My oil pressure (when cold) stays at 5bars, is that 
     where it should be? when it warms up the oil pressure comes down to 
     2bars and stays there until i rev it up, at highway speeds (3000 rpm) 
     it stays at 5 bar. this seems a little high to me . if anyone has any 
     ideas please feel free to voice them. Thank you all.<
     
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