[TR] Radiator fan motor - rebuild?

[mark.jones at exxonmobil.com]

 Coming back from NATC on Saturday in my 80 Spitfire I could hear a slight  
 squealing sound from time to time. When I got home I found that it is the  
 radiator fan motor that is making the noise, a dry bushing type of noise.  
 Can the fan motor be rebuilt? Do any of the vendors sell parts/bushings to 
 rebuild the fan motor? If not, are new ones available?                     
                                                                            
 Mark                                                                       
 80 Spitfire 1500                                                           
 Corunna, ON