There's a circular spring in a groove at the bottom of the bell shaped section, you can buy a removal tool, but is do-able with 2 half pieces of
tube (with id to match the od of your fuel pipe) slid between the pipe and the spring to allow the spigot of the pipe to pass the spring.
It will probably need to be quite short to bypass the bump on the pipe below the connector, the proper tool has a chamfer on the back face to get
around this.
Thanks for the replies. What does the tool look like? A quick look on ebay shows up plastic clips, it it possible that the grey plastic cover is in
fact the removal tool?
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