I need to remove the glow plug and screen from a D4 Eber-doesn't-splutter and don't have the special tool. It looks from a pic of it as though it's just a box spanner with a slot cut up the side to clear the wire. Can anyone tell me the spanner and slot size please so I can make one before going to the boat?
Alternatively has anyone in Brighton/Lewes got one to lend/sell please? (Local agent not very helpful.)