When you say "dome", perhaps you mean the oil sump pickup (circular mesh screened looking thing ?)
To post a picture, you can try to upload it to the photo gallery on this forum and put a link to it in your post (third tiny square button from the top left corner in the message edit pane at the bottom of the browser window when composing a post) that says "Insert Image" - this is where you'd put the link to the picture on the hosting pc (not your desktop/laptop pc). But, I've had alot of issues with the earlier versions of the photo gallery on this forum, and I use a free account on photobucket.com - you can upload dozens of pics and store them there for free, and link to them from these forum postings.