Section : Gearbox

Fitting 2000 saloon O/d Gbox to Herald 

Posted By : Clive Speaks, 16-Apr-2004, 03:42pm

• Fitting 2000 saloon O/d Gbox to Herald 

  Posted By : Tim Everitt, 16-Apr-2004, 04:16pm

  I don't wish to disappoint, but so far as I know the 6 cylinder gearboxes and 4 cylinder engines are just not compatible (and vice versa). I'd be delighted to be proved wrong tho.

  • Fitting 2000 saloon O/d Gbox to Herald 

    Posted By : Jason Chinn, 16-Apr-2004, 05:29pm

    The good news is that your "TR" type boxes are worth a few quid, especially the A type one - try them on eBay and use the cash to reinvest in an overdrive box for your Herald
    
    
    

    • Fitting 2000 saloon O/d Gbox to Herald 

      Posted By : Clive Speaks, 17-Apr-2004, 09:00pm

      Thanks for all the input guys. From what you all say I guess that the most sensible thing would be to cash in the saloon boxes and buy a spitfire O/D box. I've just been offered a good MkIV Spit engine with all ancillaries ( is that spelt right?) so that appears to have made the decision for me. I'll be using this message board again though, great response from you all!

• Fitting 2000 saloon O/d Gbox to Herald 

  Posted By : David Rumens, 16-Apr-2004, 08:27pm

  The 2000 saloon gearbox will not fit in between the chassis. There will also be problems getting the bellhousing to match up with the engine backplate.
  
  As others have said sell the 2000 gearbox/overdrive and use the money to buy a Spit gearbox/overdrive.
  
  

• Fitting 2000 saloon O/d Gbox to Herald 

  Posted By : William Davies, 16-Apr-2004, 11:36pm

  Hi Clive,
  It may be possible to fit the Saloon gearbox onto the back of the engine by mixing and matching the engine backplate and other parts from the big Saloon, but I really don't know how straightforward (or otherwise) it would be. What I DO know is that the box is too wide to fit between the chassis rails where they taper when fitted with the 6 cylinder engine. The situation may be easier with the 4 cylinder as the unit will be sitting approximately 3 inches further forward, but I don't know if this will help. The gearbox has been used by some in the Vitesse, but the back end of the box has to be raised to clear the chassis, making the driveline of the propshaft less than straight.
  Just a few vague thoughts on the subject, let us know how you get on if you proceed. The big gearbox was reportedly used by the factory on some of the racing Spitfires, so there may be a good precedent for what you are trying to do, they did however have the advantage of easy access to machining facilities.......
  Cheers,
  Bill.
  

  • Fitting 2000 saloon O/d Gbox to Herald 

    Posted By : Adrian Lee, 16-Apr-2004, 11:53pm

    You have to cut and widen the chassis rails to make it fit,though i do not know if you can mate the gearbox up to a 4 cylinder,the chassis mods are fairly straight forward.

    • Fitting 2000 saloon O/d Gbox to Herald 

      Posted By : David Rumens, 17-Apr-2004, 01:19pm

      The 2000 backplate could be drilled out to fit the Herald engine.
      
      The starter motor is on the other side, if the flywheels are the same then the Herald starter ring should match up to the starter motor.
      
      But I am unsure about the clutch operating set-up, could be problems with clearance. It is different than the Vitesse.
      
      

      • Fitting 2000 saloon O/d Gbox to Herald 

        Posted By : Adrian Lee, 17-Apr-2004, 02:20pm

        Or drop a six potter in the herald!

        • Fitting 2000 saloon O/d Gbox to Herald 

          Posted By : David Rumens, 17-Apr-2004, 02:39pm

          True, when in doubt fit the lot!