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Projects To a T- Trevor's T-on-A RPU

Discussion in 'Traditional Hot Rods' started by trevorsworth, May 7, 2022.

  1. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    Throttle linkage broke again today. :confused: I was getting ready for a cruise in and it wasn't having it. Spent a couple hours and 3 trips to the hardware store to try to come up with something stronger but no dice. We pulled the tarp off the AA and drove it up there just 'cuz so didn't miss out but it was a bummer not getting to bring the hot rod.

    IMG_2400.jpeg

    This is what I had before, I booger welded it (don't judge, I loaned my machine and got it back with no tip) last time it broke but it just broke in front of the weld.

    This linkage sucked, it worked but it had too many pivot points and the little arm that hangs down, when you hit the gas, wanted to flip sideways before it started opening the throttle and eventually that bends the allthread and it breaks from fatigue.

    Obviously I need some kind of pivot attached to the manifold but I have no idea how to start designing this. Any clues would help...

    IMG_2449.jpeg

    I thought about just tying the two together and using a cable to open one but I don't like cables.
     
    Last edited: Aug 16, 2025
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  2. Dick Stevens
    Joined: Aug 7, 2012
    Posts: 4,084

    Dick Stevens
    Member

    You need to have it setup to pull, not push, to open one carb and a rod connecting the 2 carbs that will then pull the other carb open at the same time with spring return
     
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  3. RMONTY
    Joined: Jan 7, 2016
    Posts: 2,656

    RMONTY
    Member

    That intake is ugly AF....pull that thing off of there next time you come over and we will make it look good. I dont have anything useful for the throttle linkage dilemma, but Mr. Stevens makes a good point. Pulling is way less stressful than pushing. Hard to achieve without breaking your rule about having everything old school, kinda like that badass quick connect/release steering wheel from the turn of the century, just not sure which century it is from! :confused:
     
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  4. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2494.jpeg

    Heated & bent the throttle arm to invert it (so it would push rather than pull). Bent up the linkage that used to run from the hand throttle to the throttle control and connected it to a plate I made & attached to the linkage on the rear carburetor. I need to fine tune the linkage between the carbs and find a more elegant solution for the springs, that's just what I had sitting around, but it works wonderfully and looks slicker than what I had.
     
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  5. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2500.jpeg

    Starting to experiment with headlights.
     
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  6. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2504.jpeg

    I'm liking it...

    Debating on pulling the bed again to fix the sagging, since I'm working on the turtle deck and might have it ready to go on soon. Decisions decisions...
     
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  7. MojoRacing
    Joined: Mar 24, 2013
    Posts: 134

    MojoRacing
    Member

    Headlights are killer! In my opinion they fit right in with the build!
     
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  8. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    Also got the flywheel back. 42 lbs, down from 63, and balanced. Not bad but I should have bought a Burtz flywheel for what it cost. Oh well. The Burtz would have had some "hidden fees" with other stuff I'd have had to buy for it.

    IMG_2511.jpeg
     
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  9. RMONTY
    Joined: Jan 7, 2016
    Posts: 2,656

    RMONTY
    Member

    I coulda ground 21lbs off that flywheel with as many flap disks of mine that you've burned through since I've been helping you work on stuff!! They are cheap on Amazon! ;) It'll be interesting how much more giddy-up it's gonna have!
     
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  10. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    Got caught in the dark the other day which sucked, so I figured I'd quit kicking the can down the road and make the lights work.

    IMG_2586.jpeg IMG_2587.jpeg

    Finally converted the tail lights to dual filament sockets and Saul got everything wired up for me.
     
  11. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2593.jpeg IMG_2594.jpeg

    Back in the nest after a romp around town with @Saulman's little BMW. Definitely no racing involved. :D
     
  12. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2601.jpeg IMG_2602.jpeg

    Not even warm after 40 minutes at 55 on the interstate. :cool:
     
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  13. GuyW
    Joined: Feb 23, 2007
    Posts: 776

    GuyW
    Member

    "Not even warm after 40 minutes at 55 on the interstate. "

    Better get a thermostat...
     
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  14. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    Yep, I am thinking that is a little too cool. Looking into tstat options right now.
     
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  15. Outback
    Joined: Mar 4, 2005
    Posts: 3,301

    Outback
    ALLIANCE MEMBER
    from NE Vic

    Nice to have to warm it up. Mine has the opposite problem
     
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  16. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2617.jpeg
    IMG_7448.jpeg

    Just some hijinks today. Checked out the Model A club's upcoming tour route with Saul and cruised it around well into the dark to make sure the headlights are gonna be worth a shit. They work pretty good!
     
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  17. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member



    IMG_2620.jpeg
    IMG_7459.jpeg IMG_7454.jpeg

    On the morning commute...
     
    Last edited: Sep 6, 2025
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  18. 59sedandelivery
    Joined: Sep 5, 2005
    Posts: 94

    59sedandelivery
    ALLIANCE MEMBER

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  19. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    IMG_2682.jpeg IMG_2686.jpeg

    The FW Model A club has accepted me for one of their own and I got to tour a bit with them today :D
     
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  20. RodStRace
    Joined: Dec 7, 2007
    Posts: 8,375

    RodStRace
    Member

    Don't they know you're a hoodlum?
    pulp.jpg
     
  21. dmar836
    Joined: Oct 23, 2018
    Posts: 394

    dmar836
    Member

    Yeah, I'm surprised. Usually the club guys are purists. "No hotrods"
    D
     
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  22. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    I'm told the Dallas club is kind of that way, but the Fort Worth club is a great group and has been more than welcoming. I've been a member for a couple of years and I am really excited to finally be able to get my car out to play with them.
     
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  23. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    She started running rough on me. The distributor hold down bolt was tapped directly into the aluminum. I had been going very easy on that bolt because the threads already felt kinda bad & I didn't want to strip it but I did notice it had gotten loose so I tightened it up and the engine resumed running fine only to start running rough again a little while later; threads are jacked, can't tighten the bolt, need to helicoil it.

    That's as good a reason as any to swap the B distributor in, which requires me to change the timing cover.

    A while back my friend George found this B cover in his stash and told me to come get it; it was pretty rusty. Here it is ready to install.

    IMG_2698.jpeg

    Putting the B distributor in required me to remove the valve cover to get the Nu Rex timing gizmo out. I have been thinking about putting adjustable lifters in here for a while but I didn't really want to dig into this engine deep enough to do it. Well, somehow up til now I never noticed that it already has adjustable lifters, or if I did ever notice I have since forgotten.

    IMG_2726.jpeg

    This was also a good time to replace the broken generator pulley.

    IMG_2727.jpeg

    When I removed the old timing cover, the corresponding section of the oil pan gasket came with it, so I went to various parts stores in search of cork to patch that area with and by the time I found some, it was too dark to continue. Hopefully we will be in business tomorrow.
     
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  24. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    Ran great for 1 block then overheated and blew the head gasket. Hahaha... uggghh
     
  25. AmishMike
    Joined: Mar 27, 2014
    Posts: 1,381

    AmishMike
    Member

    Color me confused: 2 weeks ago would not warm up, now suddenly overheats??? What changed?
     
  26. trevorsworth
    Joined: Aug 3, 2020
    Posts: 2,013

    trevorsworth
    Member

    In theory only the ignition timing. Base timing with the B dizzy is 19 degrees BTDC. Many Model As are running B distributors with that timing setting and get down the road just fine, yet mine, which would not come above 140 degrees after 25 minutes on the highway, was boiling hot after a five minute run around the block...

    My best guess is something is wrong with the distributor, like perhaps the advance weights are not retracting and it is sitting too far advanced at idle. Last time I tried to use this distributor I knew almost nothing about cars and had a feeling that something was wrong but I didn't know where to start diagnosing it, so I switched back to the A distributor. Now I know a little more and am not afraid to dig into this distributor.
     
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  27. dwollam
    Joined: Oct 22, 2012
    Posts: 2,732

    dwollam
    ALLIANCE MEMBER

    I run a B distributor on a B engine with an A timing cover. I just set the timing where it works. And, it works fine.
    The engine had a Model A dist, carb, manifolds etc when I got it. I put a 6.0 head and B dist etc on it for better performance.

    Dave
     
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