Just bought a 2.8i Special that is a non starter and I`m getting stuck into the fuel injection system. It seems someone has had a good go at trying to get it going shall we say and I've found the fuel distributor to be siezed and clogged up. So I've bought a Salvos kit for the fuel distributor but I'm struggling to find a plastic collar/O ring as shown in the attached picture....has anyone had this issue before? It sits on the metering unit near to the cause filter.