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

Thread: Roadster Axle

Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12
  1. #1 Roadster Axle 
    frequent forum contributor Club Member
    Join Date
    Nov 2011
    Location
    Suffolk
    Posts
    422
    I've been contacted by a Roadster owner in Germany who is struggling to find a replacement rear axle for his early 1.8 Marina based car. I do actually have a spare axle of unknown pedigree but there is the logistical problem (& cost) of getting it over to him. I doubt very much that there is a source of Morris Marina spares on the continent but thought I would check if anyone has any ideas first.
    Geoff
    Reply With Quote  
     

  2. #2 Re: Roadster Axle 
    frequent forum contributor Club Member
    Join Date
    May 2016
    Posts
    108
    Hi Geoff

    The Marina was produced for a later period in Australia and apparently a lot of Marina's were made to go quite quickly with bigger engines .
    With that in mind perhaps there is a supply of standard axles over there, that had to be swapped out to accompany the more powerful engines.

    Chris Weedon from the Marina Owners club may also be able to offer some advice/ ideas on the subject.

    The early Toyota Corollas 1.6 from the 70's had a leaf sprung rear axle. They were very reliable and had larger diameter half shafts .
    So in view of the large number of Toyota Clubs in Germany , perhaps the track width might be similar and be a viable replacement /upgrade.


    Other than that, the Variants of the Lotus 7 Caterham, Westfield, etc often used this axle in the cars upto the mid 80's , so perhaps it's woth contacting the various owners clubs relating to the Lotus 7 , in case someone upgraded and has 1 sitting in their garage
    Last edited by Ye Ol Ripper; 30-07-2020 at 11:42 AM.
    Reply With Quote  
     

  3. #3 Re: Roadster Axle 
    frequent forum contributor Club Member
    Join Date
    Nov 2011
    Location
    Suffolk
    Posts
    422
    Thanks for the reply. I was aware of the Australian Marinas and I will certainly mention that. The Corolla axle sounds like an interesting option if the track is acceptable. I had a closer look at the old axle in the back of my garage. A rough check of the ratio showed it to be about 3.8:1 so would be suitable for the 1.8 Roadster.
    Reply With Quote  
     

  4. #4 Re: Roadster Axle 
    frequent forum contributor Club Member
    Join Date
    May 2016
    Posts
    108
    Hi Geoff

    I also now recall talking to Chris Weedon a while back and apparently Rimmer bros can supply reconditioned diffs etc as the inards are the same as a Dolomite, albite sadly not cheap
    Reply With Quote  
     

  5. #5 Re: Roadster Axle 
    frequent forum contributor Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,225
    This has been discussed at length and I produced a document to try to cover all eventualities.
    it is highly possible that all that is needed is the diff centre, not the complete axle, common to many small triumphs and therefore available through Triumph parts stockists around the world, not just Rimmer Brothers. What will be needed is the ratio of the axle, there are five to choose from with whatever the problem.
    Without more information it is difficult to help further, but I have documented everything you need to know.
    Incidentally this document has been referenced by Chris Weedon so you will get exactly the same information from him.

    The document in question can be found here or there
    Last edited by stevejgreen; 31-07-2020 at 05:09 AM.
    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  
     

  6. #6 Re: Roadster Axle 
    frequent forum contributor Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,225
    Quote Originally Posted by Ye Ol Ripper View Post
    Hi Geoff

    I also now recall talking to Chris Weedon a while back and apparently Rimmer bros can supply reconditioned diffs etc as the inards are the same as a Dolomite, albite sadly not cheap
    True but there are two very different axles to be found in a Dolomite or a Dolomite Sprint.
    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  
     

  7. #7 Re: Roadster Axle 
    frequent forum contributor Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,225
    Quote Originally Posted by ggrum View Post
    Thanks for the reply. I was aware of the Australian Marinas and I will certainly mention that. The Corolla axle sounds like an interesting option if the track is acceptable. I had a closer look at the old axle in the back of my garage. A rough check of the ratio showed it to be about 3.8:1 so would be suitable for the 1.8 Roadster.
    Changing just the back axle, apart from the need for the necessary bracketry for springs, shocks, brake pipes and cables is not a simple job. The chances are a new propshaft will be required.
    There is also the need for new PCD wheel rims as the Marina sizes are rare and certainly not metric. So you could end up with a mismatch of wheel type and size from front to back axle, adding significantly to the costs.
    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  
     

  8. #8 Re: Roadster Axle 
    frequent forum contributor Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,225
    About two minutes of searching. This looks promising https://www.bastuck.de/files/bastuck...talog_2016.pdf jump to page 48.
    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  
     

  9. #9 Re: Roadster Axle 
    frequent forum contributor Club Member
    Join Date
    Nov 2011
    Location
    Suffolk
    Posts
    422
    Thanks very much for all the info which I'll feed back to the enquirer.
    Reply With Quote  
     

  10. #10 Re: Roadster Axle 
    frequent forum contributor Club Member stevejgreen's Avatar
    Join Date
    Nov 2011
    Location
    Somewhere in the world
    Posts
    3,225
    Quote Originally Posted by ggrum View Post
    Thanks very much for all the info which I'll feed back to the enquirer.
    They would do well to take a look at the document I linked to, and the rest of my documents.
    That one document is four pages long and contains information on the later half shafts and seals that is not well documented, changes of speedo gears to account for different diff ratios, spring rates and so much more than I can type from memory.

    It’s been downloaded more than 2500 times so the information is out there in the public domain if you know the right question and who to ask.

    it makes me wonder why he did not post here in the first place, I am cautious because so many things change in translation, even when using a common language.
    Last edited by stevejgreen; 31-07-2020 at 08:26 AM.
    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  
     

Bookmarks
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
  •