Leaking oil filler cap?

Hi all,
I have a slight problem with my US spec '98 A4 2.8 Quatro.
It seems that the oil pools around the oil filler cap and then will drip down on to both the plastic covers and on to the head and exhaust
manifold.
I've replaced the oil filler cap once, but not the rubber seal that fits under it. Is that rubber seal supposed to be sealed down?
Thanks.
--


Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Paul Dhuse wrote:

The seal is only held on by the tightened filler cap. You can try to replace it again but it is probably a symptom of a bigger issue. You might be getting excessive blow-by on the sides of the pistons due to worn rings and high miles. If this is the case you will have the shoice of rebuilding the engine or just living with the issue.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Tue, 03 Jun 2008 23:11:52 -0600, TonyJ <"tonyjnospam at nospam visi.com"> wrote:

Interesting theory - but even assuming "blow by" would force oil out the filler cap, wouldn't it be predicated by a defective PVC valve?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.