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Thread: Marina to Ford Type 9 gearbox conversion.

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  1. #1 Marina to Ford Type 9 gearbox conversion.  
    frequent forum contributor Club Member stevejgreen's Avatar
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    I have been reading Jez Cox's article in April/May 2004 pitstop.
    Has anyone else attempted this conversion?
     

  2. #2 Re: Marina to Ford Type 9 gearbox conversion.  
    frequent forum contributor Club Member stevejgreen's Avatar
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    I have been thinking of the options and now looking at using a 6cyl type 9 gearbox with longer input shaft. fitted to the marina bell housing with an adaptor plate.
    This would retain all the marina starter, backplate clutch etc. Especially relevant as the existing are refurbished parts anyway.

    A drawback would be the clutch thrust bearing carrier not fitting on the gearbox tube but I am sure that could be overcome easily.

    Any comments.
     

  3. #3 Re: Marina to Ford Type 9 gearbox conversion. 
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    Having thought long and hard about the pros and cons, I reached the conclusion that fitting a Ford gearbox without fitting a Ford engine along with it was a waste of effort.

    It's not as if we are running a "classic" like an mgb where we want to keep some authenticity.

    Don
    Last edited by donsayers; 09-12-2011 at 06:17 PM.
     

  4. #4 Re: Marina to Ford Type 9 gearbox conversion.  
    frequent forum contributor Club Member stevejgreen's Avatar
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    Thanks Don. Would tend to agree but.. engine is only about 12000 miles from a full rebuild, everything necessary replaced or reground.
    Its just that I am fed up with a waving stick of a gearbox and ridiculous revs at speed. Its just another option to finding a dolly box with overdrive and the Type 9 should be around for years to come.

    If it can be done with an adaptor plate around 100 + box then I think it is worthwhile.
     

  5. #5 Re: Marina to Ford Type 9 gearbox conversion.  
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    I had the same issue when I had a Marina engine to my SWB fitted and looked at all the conversions ideas as my Marina engine had just done 1000 miles after rebuild.After a lot of thinking I fitted a Pinto and type 9 box and it is the best thing I have done as it has transformed the car and you can parts ok if and when needed. I sold my old Marina engine and gearbox for good money to an Marina owner which more than paid for the Pinto conversion.

    Good luck..........Bob
     

  6. #6 Re: Marina to Ford Type 9 gearbox conversion.  
    frequent forum contributor Club Member stevejgreen's Avatar
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    OK Things seem a little negative. I am sure it would be different if I had an overdrive dolomite box and was prepared to adjust the transmission tunnel etc.
    I have decided to go forward with this project anyway. If there are other Marina engined Roadsters out there who would like to try this route then please get in touch.
     

  7. #7 Re: Marina to Ford Type 9 gearbox conversion.  
    Club Member lil_red_roadster's Avatar
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    Go for it Steve...one of the joys of owning a kit car is the relative freedom to try different things out...the cars become as individual as the owners...it'd be a boring world otherwise. I'm also sure Sue would like a write-up for the mag when you're done.
     

  8. #8 Re: Marina to Ford Type 9 gearbox conversion.  
    frequent forum contributor Club Member stevejgreen's Avatar
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    Bumped back to the top of the list.

    I have worked out all the details necessary for fitting a Type 9 gearbox to a Marina bell housing and am looking at getting some adaptor plates and a couple of minor mods made up for the longer shaft V6 gearbox.

    Compatability should be OK between 1.3 and 1.8's as they use the same bell housing. Difficulty may arise with very early 1.3 clutches having 10 splines not the 23 on a Ford Box. We will be looking further into this conversion as we finally resolve the 1.8 issues.

    So far as the Type 9 in a Marlin goes we have kept the standard Marina clutch and it will fit in the transmission tunnel with simple modifications for a gearstick hole some 4" further back with a custom gearbox mounting and a shorter propshaft.

    A longer speedo cable will be required but the difference between the Ford and Marina axle ratios appears to be within 3% so there should be no immediate need to recalibrate the speedo. We will check this against satnav when completed.

    Wiring will have to be extended, and the sides changed for the reversing switch.

    This has all been developed in conjuction with the Marina Owners Club and am sure it will be of interest to them as an alternative to a Dolomite sprint overdrive box.
    Obviously any other cars using a Marina engine/gearbox as a donor can also be mofified. Cost including a second hand box, new clutch assy, gaskets, speedo cable and fixings should come in at less than 400.

    Once we start machining I hope to get some photographs of our progress and will assemble a parts list for the whole kit. With luck this can be published in Pitstop.

    Any comments please, or if you want to join us in this project please get in touch.
    Please don't say, why not change the engine and box for something more modern.
     

  9. #9 Re: Marina to Ford Type 9 gearbox conversion.  
    frequent forum contributor Club Member Dane_Rescueman's Avatar
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    Steve,
    You have ot all pretty well sorted. The type 9 can be fitted with different speedo drive gears depending on the vehicle to which it was fitted. I changed my gear for one to bring my speedo in to line. I actually managed to get the drive gear I wanted from a Ford dealer !!!
     

  10. #10 Re: Marina to Ford Type 9 gearbox conversion.  
    Club Member Mike's Avatar
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    Steve
    Would you like a Dolomite Sprint gearbox, with overdrive?
    I have a good one not being used.
    Will it mate to a Marina engine?
    I had a Triumph 2.5 6 cyl. and intended to fit the Sprint gearbox + o/d, but the integral bell housing/gearbox was at the wrong angle for the old 2.5 Triumph.I needed the pre 1974 1850 Dolomite over drive.
    However, if you are interested, give me a cal on : 07968 835101
    Regards
    Mike
     

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