Propane Conversion

Discussion in 'GA- Georgia Cruisers' started by tgreco, Oct 19, 2018.

  1. tgreco

    tgreco

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    If you were hoping to click on this thread and get some truck tech, this is not the place :flipoff2:. On the contrary, this thread may give you some ideas for your next grill fabrication project.

    So the story begins, where all stories begin - I've gotten tired of the shoddy products available nowadays and I didn't want to spend my money on something that would only reliably work for a year or two. The goal for the project is a propane / charcoal hybrid grill that may be able to serve as a halfway decent smoker. I'm trying to do this thing on the cheap with the only new parts related to the propane burners.

    This thing started it's life as an air compressor (~ 50 gal) and will end its life cooking food:

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    Went with greaseable bullet hinges left over from a previous smoker build:

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  2. tgreco

    tgreco

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    The next step which is kind of a bitch is building the flanges for the door. Stole these ideas from others, but they work well. The way that I affixed the flange to the door is by grinding slots in the door, clamping the flange, and then filling the slot with weld. This keeps the grinding work to a minimum, does not interfere with the door closing, and keeps the front of the door clean.

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    To mount the flange on the vertical (rounded side of the door), get all the c-clamps you can find and start bending. The flange is 1/8" flat stock, so it bends relatively easily.

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    And the finished flanged door. I've had pretty good luck running a bead of high temp RTV as a sealer along the flange.

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  3. FJCRAWLER

    FJCRAWLER

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    Never seen a grill with the ends missing. Is that to let more air in or let the smoke out when you’re grilling. :grinpimp:
     
  4. tgreco

    tgreco

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    You got me thinking, and I figured I’d have at least one design flaw :idea:

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  5. TeddyBoy

    TeddyBoy Knighted by the King of MUD himself

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    A water scoop :flush:
     
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  6. tgreco

    tgreco

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    Nope, a snorkel - I heard they add at least 15hp.

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    Put the divider in. Left side will be propane, right will be charcoal.

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    Here is the burner assembly. Ordered the Venturi and valve online and will piece together the rest. The black iron pipe will be the burner after it gets a bunch of holes drilled in it.

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  7. tgreco

    tgreco

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    Not a ton of progress but checking things off. Ran out of gas and switched back to flux - damn it sucks.

    Charcoal basket and cooking grate.
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  8. TeddyBoy

    TeddyBoy Knighted by the King of MUD himself

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    You gonna smoke some butts at AOP for us?
     
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  9. tgreco

    tgreco

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    Sure, but not with this thing - we'd need a fork lift to get it on and off the trailer. I have been toying around with the idea of a trailer hitch mounted grill just for those types of occasions - might have to put that one in the que. We'll talk.
     
  10. tgreco

    tgreco

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    Few updates. Unfortunately worked on this instead of wheeling this week.

    Burners done at 128 total holes - only took about 8 drill bits until I borrowed a drill press which I need to add to the tool aresenal.

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    Handle

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    Cheap/ghetto hinged door to access the charcoal basket. Ran out of gas and burned up an old spool of flux - as this board suggested in the truck build, I’ll never go back unless I have to.

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  11. tgreco

    tgreco

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    Starting to check things off the list. The burners were one of the last big hurdles.

    The burners extend through the tank and will mount to the front shelf. Getting all of this aligned was a pain.

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    The propane inlet will mount on the open side of the tee. The brass manifold will affix under the shelf and will be hidden by the wood insert.

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    And the wood insert that slides in the shelf. I wanted this removable so it could be washed and brought in out of the weather if needed.

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  12. tgreco

    tgreco

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    Lift off!

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  13. tgreco

    tgreco

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    Couple of minor updates.

    Grease guards/heat deflectors. The angle iron will sit on the end pieces so they can be removed to access the burners if necessary.

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    And trying to figure out the legs. I tried to build a jig to keep both legs equivalent. I’m a little worried about cutting the angles on the bottom of the legs square to the ground. Don’t want a wobbly grill.

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  14. Hugh Heifer

    Hugh Heifer In Tenneginia!

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    Be a good parts/tool bin for the back of a rig.
     
  15. tgreco

    tgreco

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    Maybe but it sure would get heavy if you made one of a size to fit anything big.

    Finally got the legs figured out and it’s standing on its own. The check list is getting short. Hope to be cooking on it by the first of the year.

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  16. FJCRAWLER

    FJCRAWLER

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  17. tgreco

    tgreco

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    Got a lot done today. Pretty much done with the fab work. Now I just need to spend some time with the grinder making everything look pretty.

    Put it on casters so I could move it around and more importantly get it out of the garage and to the deck.

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    Air intake for the charcoal side.

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    And a little redneck diesel stack inspiration on the exhaust.

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  18. tgreco

    tgreco

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    Just waiting on paint to dry and a couple of small odds and ends and it’ll be time for final assembly.

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  19. tgreco

    tgreco

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    Done and in its final resting place! May end up cutting the casters off now that it’s on the deck - we’ll see though. Also gotta build a box for the propane to keep the wifey happy. First cook is happening tomorrow.

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  20. FJCRAWLER

    FJCRAWLER

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    Looks GREAT @tgreco!

    I see many years of enjoyment.
     
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