fisha Posted August 22, 2006 Share Posted August 22, 2006 If you listen to this sound file, you should be able to hear a sound from my engine going whu whu whu hwu whu, which has developed recently. The sound is here: V8 If you use a screwdriver to the ear method, the sound is most noticable when you listen to the top of the rocker cover above cylinder #4. You cant hear it as much if you listen to the inside of the cylinder head at #4 (you hear the injectors instead ) and nor can you hear it as clearly if you listen to the exhaust manifold bolt of #4. The sound isn't there when cold, but is there once the engine is warm and your sitting at idle. Obviously, there are 2 prime causes running through my mind. One not too terrible, the other serious. - rocker shaft / rockers - dropped liner. Based on listening to the sound file, do people think its likely to be one or the other . . . . if so which? I have to say that i would have assumed that a slipped liner would make a definitive clicking / tapping / knocking sound as the liner slaps off the cylinder head / block. This seems to be more of a rubbing sound , almost like a dry pulley going round. I'm going to take the rocker cover off at the weekend, but thoughts in advance are gratefully welcome. Quote Link to comment Share on other sites More sharing options...
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