Right .. im sorry this isnt regarding my WRX, its my wifes Audi Cabriolet ( i think its an Audi 90 ? ) .. Anyways, there seems to be a tapping or knocking thats only really noticed at low revs or a standstill ?.. does anyone know if these Audi's have hydraulic tappets or none adjustable ones ?.. or even if it could be something else ?

Im a novice under the bonnet .. i just know how to drive them well.. any help would be appreiciated greatly !!

Matt

 

Im prity sure they're hydrolic mate, how old is the car?

 

Hi sorry bout the delay mate... its a 93 cabriolet mate.. just had a thaught though as it sounds like its misfireing.. took distributor cap off but couldnt pull the rotor arm out ? would pinking or det sound fairly loud ? like a tapping.. sounds like its comming from the rocker cover, but i guess it could be a combustion problem ?

 

Its very hard to hear det with the naked ear, if its missing, have you tried looking at the plugs? R they fouled or are the gaps right? Did the cap have any cracks or discolouration? or maybe check the leads. The early audis do suffer with oil feed problems to the hydrolic bukets, so maybe an engine flush and oil and filter change may help.

 

cheers chap, ill try that... the knocking is prett loud, in which case it probably isnt Det, ill replace the sparkys and try some flush .. the tappets are definatly hydrualic... am i looking at an expensive job do u rekon if thats the problem ? any one know of any reasonable garages that'll work on an Audi Cabrio ( 1993 ) that wont try to make me sell my daughter to pay for the work ?

 

Hi mate,what engine is in the car,Is it the 20 valve?