I agree with jamesmartin I've just had the sump off mine because of a maaasive leak used Wynn's black gasket maker for the sump and t seals, left overnight to cure. Job spot on. Don't bother with t seals!
I have just bought a 96 defender which has just had a 300tdi fitted from a disco. The injector pump has a potentiometer fitted but obviously nothing to plug it into. Anyone know what I need to do?