Fuel system air leak C250D

Whilst replacing a glowplug I have managed to disturb a fuel line. The symptoms have been documented elsewhere, ie an air leak allowing fuel to return to the tank. The engine then requires a lot
of cranking to pump fuel back to the front of the car before it will start. The fuel pipe connections are not of a type that I am familiar with. I suspect that they consist of an O ring between any two components with a metal C clamp forcing the two components together. Sorry if this reads like gobbleygook. Now that I have diagnosed the problem, I just leave the car facing downhill overnight and all is well. Before I disturb things further I would be grateful if someone could confirm or not my O ring theory and where can I get replacements. regards dave
--
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com ).
  Click to see the full signature.
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.