Deutz Diesel Bronco

Discussion in 'Diesel Conversion Forum' started by BC4Lyphe, Sep 16, 2018.

  1. BC4Lyphe

    BC4Lyphe Registered User

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    Hi I'm in the beginning stages of starting a build. I'm not super familiar with the details of transmission mounting, etc.

    I have a Deutz air cooled 6L912 inline 6 cylinder which I measured the bellhousing mounting pattern to be SAE #3.

    I've also got a divorced NP203 from a 203/205 doubler project I was going to but sort of abandoned.

    I can get an 84 Bronco with a blown motor for free.

    My main question is which transmission would fit the motor? I gather any combo of SAE3 bellhousing, clutch, flywheel should fit together?

    I'm not worried about the trans being "refined" or OD or going over 50mph. Trying to build a bombproof rig to cruise around town and hit the trails.
     
  2. chillman88

    chillman88 Supporting Member Supporting Member

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    Personally I would try to find an adapter from SAE #3 to something else. Everything I've read says the medium duty truck transmissions rob power.

    I'm going to watch this thread out of jealousy lol! I'd love to drop a Deutz into my old well used K1500 just to be different. You've got a sweet project ahead of you!
     
  3. bbjordan

    bbjordan Snow Monkey

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    :popcorn subscribed.
     
  4. saburai

    saburai Full Access Member

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    Me too!
     
  5. BC4Lyphe

    BC4Lyphe Registered User

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    I've looked at the bellhousing area again and it looks like theres 3 housings bolted together. I'll try and write on the photos and post them tonight. The engine is still coupled to the generator head so I want to split the cases and measure all the different ring sizes and run the engine without spinning the genny windings.. It appears the one bolted to the block may be an SAE#2 which would make things easier since my Cummins project uses that size and I could use the Eaton trans.
     
  6. Thewespaul

    Thewespaul Supporting Vendor Supporting Member

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    I really like the Eaton, I have a faceplated 6 speed behind my 3116. Use the clutch to stop and start, but that’s it.
     
  7. BC4Lyphe

    BC4Lyphe Registered User

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    [​IMG]

    [​IMG]

    The flywheel itself looks like it might be 3 pieces. From left to right. The smaller diameter armature shaft, which is bolted to the thick rusty center section, which is then bolted to slightly smaller diameter shiny part with the starter ring gear on it.
     
  8. subway

    subway be nice to the admin :D

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    i am not sure how that would work bolting a transmission to the adapters. usually the adapter rings i have seen for say a SAE#2 to #3 are only a thin bolt ring to bring the size down. i am no expert though.

    what is the bolt pattern on the back of what you have labelled as bellhousing 1? it looks like what you have marked as bellhousing 2 is some sort of extra adapter. i don't think you can bolt a transmission to that.

    i can say, i really like my Eaton-Fuller FSO-6406 in my F350. if you do not need overdrive i have seen enough SAE#2 medium duty transmissions around in the couple hundred dollar range to make them easily viable. they may take a little more parasitic loss but they are WAY beefier and made to be rebuild able.
     
    Last edited: Sep 18, 2018
    chillman88 and Thewespaul like this.
  9. BC4Lyphe

    BC4Lyphe Registered User

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    I finally got around to splitting the generator head from the engine. Looks like "bellhousing #2" goes with the genny and "bellhousing #1" is an sae #3. Will this flywheel work with a clutch. It looks like an SAE10/11.5 but there's no flat surface where the clutch pad would ride.
     
  10. BC4Lyphe

    BC4Lyphe Registered User

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    Maybe I could have the red area machined flat for the clutch?

    20180928_221512.jpg
     
  11. compressionignitionrules

    compressionignitionrules Full Access Member

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    Deutz is a usefull engine if you can keep moving and don't get it dirty, but for a trail rig it really is better to walk away. they need the "ductwork" kept clean to keep from cooking themselves and offroading is not a clean place. a 300 6cyl gas and a carb will save you a lot of time and money.

    you need to do some more research before jumping in. I had a 6.9 diesel C6 bronco but never offroaded it, also had a 6.9 diesel 4spd manual offroad truck and loved it but it was always first one to find the bottom of the hole and woudl have filled with mud and cooked if aircooled .
     
  12. BC4Lyphe

    BC4Lyphe Registered User

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    Oh it's not off roading in mud pits like they do in Florida. Its mostly stream crossings and some small rock beds. The trails only 19 miles long. It'd be used mostly for putting around town. The only reason I'm going with the Deutz in the Bronco are cause theyre free. Its project freebie. Trying to build the whole thing as cheap as possible and then sell my 4runner.
     

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