Click here to sign up  Click here to go to the galleries  Click here to go to the code of conduct  Click here to go to the video page  Click here to go to the SW Meets page
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11

Thread: B series engine and overdrive gearbox

  1. #1 B series engine and overdrive gearbox 
    club member Club Member
    Join Date
    Feb 2020
    Location
    Bedfordshire
    Posts
    174
    Has anyone ever fitted the B series engine, in a Marina based Marlin, with an MGB overdrive gearbox?
    The engine/gearbox combo comes up quite a lot on Ebay and an overdrive box certainly is an attractive proposition.
    I realise it would need a new propshaft made up but would the overdrive box physically fit?

    Cheers, Robin
    Reply With Quote  
     

  2. #2 Re: B series engine and overdrive gearbox 
    club member Club Member lil_red_roadster's Avatar
    Join Date
    Nov 2011
    Location
    Telford, Shropshire
    Posts
    668
    It's been done a few times IIRC.
    However, the tunnel & floor will need adjustment to fit around it...it's quite a big (and heavy) unit.
    The other thing to watch out for is the input shaft has a larger diameter than the Marina box, so does not mate to a Marina B unless you are lucky enough to have an engine with the removeable insert in the crank.
    Marlin Roadster, LWB...1860 B Series + Ford Type 9
    Renault Espace 54mm front calipers, vented discs, cycle wings and adjustable tie-bars.
    Reply With Quote  
     

  3. #3 Re: B series engine and overdrive gearbox 
    club member Club Member dcunn's Avatar
    Join Date
    Nov 2011
    Posts
    1,755
    Martin, if you check Tech Tips, way back when, there were several useful Pitstop articles on differing gearboxes.

    Rgds DC
    Last edited by dcunn; 06-12-2021 at 02:32 PM.
    Reply With Quote  
     

  4. #4 Re: B series engine and overdrive gearbox 
    club member Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,445
    It’s too late, but fitting a Ford Type 9, not impossible. No tunnel mods were necessary.
    MOC member since 05/97
    1984 Marlin Roadster SWB.
    1800TC, Unleaded ported head, stage 2 cam. Ford Type 9 gearbox, Dolomite Sprint rear axle fitted with MGF disc brakes.
    Three core radiator, Renault Clio vented front discs.
    The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

    Loads of Marlin Reference can be found documents here or there.
    Reply With Quote  
     

  5. #5 Re: B series engine and overdrive gearbox 
    Club Member
    Join Date
    Nov 2011
    Location
    Derby
    Posts
    1,614
    Why not a Mazda box on to the B series .
    Reply With Quote  
     

  6. #6 Re: B series engine and overdrive gearbox 
    club member Club Member lil_red_roadster's Avatar
    Join Date
    Nov 2011
    Location
    Telford, Shropshire
    Posts
    668
    Quote Originally Posted by dogoncrazy View Post
    Why not a Mazda box on to the B series .
    £2665 + VAT Unless you DIY it..!
    https://www.vitesse-ltd.com/products...21481998647379
    Marlin Roadster, LWB...1860 B Series + Ford Type 9
    Renault Espace 54mm front calipers, vented discs, cycle wings and adjustable tie-bars.
    Reply With Quote  
     

  7. #7 Re: B series engine and overdrive gearbox 
    Club Member
    Join Date
    Nov 2011
    Location
    Derby
    Posts
    1,614
    True , but a reconditioned Type 9 will be close to a grand and then you still want adapter etc. A MGB box with overdrive will as already mentioned require the floor /tunnel to be modified and the footwell is already tight on room for the pedals.
    Reply With Quote  
     

  8. #8 Re: B series engine and overdrive gearbox 
    I've successfully done this twice. It's a tight fit but it all works, the overdrive is very handy especially if you have a van axle and
    a low diff. New tunnel, new gearbox mounts, new floors, wiring and new prop. Job done.
    Reply With Quote  
     

  9. #9 Re: B series engine and overdrive gearbox 
    club member Club Member
    Join Date
    Jun 2015
    Location
    Kelsall Chester
    Posts
    796
    Simples!! if you are a Cornish Wrestler!
    Reply With Quote  
     

  10. #10 Re: B series engine and overdrive gearbox 
    club member Club Member
    Join Date
    Feb 2020
    Location
    Bedfordshire
    Posts
    174
    Quote Originally Posted by Cornish Wrestler View Post
    I've successfully done this twice. It's a tight fit but it all works, the overdrive is very handy especially if you have a van axle and
    a low diff. New tunnel, new gearbox mounts, new floors, wiring and new prop. Job done.
    Thanks. Not worried about new tunnel and floors as I am making new anyway.
    I don't suppose you have any pictures?
    Cheers Robin
    Reply With Quote  
     

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •