stillnotfinnished Posted November 4, 2012 Share Posted November 4, 2012 Hi all can anyone tell me if a single rail spitfire non overdrive box can be made into an overdrive box by changing the mainshaft for an overdrive one? Thanks Quote Link to comment Share on other sites More sharing options...
Richard B Posted November 4, 2012 Share Posted November 4, 2012 Yes, but...You need loads of parts like O/D adapter plate, OD gearstick , inhibitor switch...If you have a good non-OD box and a tired O/D box you can make one out of two. Quote Link to comment Share on other sites More sharing options...
stillnotfinnished Posted November 4, 2012 Author Share Posted November 4, 2012 That's good news, I've got most of the bits needed- less prop.Next question is how easy- or not! is it to change the mainshaft?Whats involed? Thanks Quote Link to comment Share on other sites More sharing options...
Richard B Posted November 5, 2012 Share Posted November 5, 2012 stillnotfinnished wrote:That's good news, I've got most of the bits needed- less prop.Next question is how easy- or not! is it to change the mainshaft?Whats involed? ThanksOh it's easy. ;DComplete stripdown, so you may as well overhaul the bearings and check the synchros etc.. Quote Link to comment Share on other sites More sharing options...
stillnotfinnished Posted November 5, 2012 Author Share Posted November 5, 2012 .....I'm worried now, I sence a touch of sarcasm!! :PThe overdrive mainshaft is in a box with play in it, so I want to swop it into a 'known good' box.How does the shaft come out? Quote Link to comment Share on other sites More sharing options...
heraldcoupe Posted November 5, 2012 Share Posted November 5, 2012 stillnotfinnished wrote:How does the shaft come out?As Richard said, complete stripdown, everything else is built around the mainshaft,Cheers,Bill. Quote Link to comment Share on other sites More sharing options...
stillnotfinnished Posted November 6, 2012 Author Share Posted November 6, 2012 Apart from my crusty old Haynes manual does anyone know if there is anything on the net about rebuilding the gearbox? I've looked without successThanks again Quote Link to comment Share on other sites More sharing options...
Richard B Posted November 6, 2012 Share Posted November 6, 2012 Best to get a proper workshop manual.Alternatively speak to Mike Papworth and have the job done for you. Quote Link to comment Share on other sites More sharing options...
stillnotfinnished Posted November 17, 2012 Author Share Posted November 17, 2012 HiHad a look on e bay for a workshop manual and found someone selling manuals on cd's Has anyone bought one of these? Are they any good? Quote Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 24, 2012 Share Posted November 24, 2012 if its the heritage ones they are just photo copied and loaded on disc, advantage they have handbook, parts list, workshop manual and more all in one place .cover all models within the range .disadvantge cant use it in the little room unless you have a laptop.Peter Quote Link to comment Share on other sites More sharing options...
Clive Posted November 24, 2012 Share Posted November 24, 2012 http://www.vitessesteve.co.uk/Servicemanuals.htmhave a look on there, should be something helpful............. Quote Link to comment Share on other sites More sharing options...
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