[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

RE: Engine Still Knocking 4kq

You say that the noise seems to be coming from the cylinders, but the
arrow on the picture points to the valve cover. If the noise comes from
the top of the engine, I would suspect dead hydraulic tappet. If it
comes from the cylinder area, you may have piston problem. The vacuum
pump is a good suspect, too. 

Aleksander Mierzwa
Warsaw, Poland
87 Audi 5000CS turbo (mine)
88 Renault Medallion wagon (mom's)
91 mountain bike (just in case both cars broke at the same time :-)

> -----Original Message-----
> From:	David Thoresen [SMTP:epicfoto@lava.net]
> Sent:	Monday, December 08, 1997 8:05 AM
> To:	quattro@coimbra.ans.net
> Subject:	Engine Still Knocking 4kq
> Thanks for all your replies to my question of engine knocking noises.
> I checked everything and the knocking is getting worse... even when 
> idling and standing still it will make a knocking noise, it seems to 
> be coming from the cylinders around the middle of the engine...  
> If I rev the engine it will go away or get worse (sometimes) then 
> come back, other times  it will not knock at all...  when it does it
> does get pretty loud.  It does not sound like a valve problem,  more
> like a loose piece of metal banging against metal.
> I have a photo on the web of my engine I shot with an arrow pointing
> to where the knocking is coming from if that helps...  
> http://www.lava.net/epicfoto/4kqeng.jpg
> Thanks!
> David Thoresen
> '85 4kq (and maybe soon an engine transplant?)