[Wraithman]

The plastic tank cracked, not the aluminium so a TIG won't help here.

 

[Wraithman]

Here's a good source for all aluminum radiators

Radiator & Expansion Tank - BRABO

Look at BRABO for all parts for Radiator & Expansion Tank (1980-2003 Rolls-Royce & Bentley Models) for Bentley and Rolls Royce.

www.brabocars.com