Hi all, I've had a frustrating few weeks of coolant problems, tired leaking pipes, jubilee clips and coolant dripping here, there and everywhere. Finally diagnosed/realised that the coolant hose insert into the barrel of my 2004 125 txt pro is very slightly weeping. I removed the insert (which was only just finger tight) and cleaned it up and when checking the fibre washer, it just disintegrated. Bought a new fibre washer to replace it but just wondering if I should use some form of sealant on the threaded insert, some thing like gasket sealant or PTFE tape for instance? Thoughts and advice appreciated.