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  1. BrianPetersen

    Gooseneck Design over 30,000lb GTW

    https://accessories.ford.ca/shop/en/ca/exterior/hitches-towing-and-recovery/hitch-kit-gooseneck-40-000-gtwr-pc3z-19f503-a https://maxxdtrailers.com/lhx-40k-heavy-duty-flatbed-gooseneck https://bluewatertrailers.ca/catalogue?id=605&inv_uuid=B35B47BE-45EF-11EB-B0E3-3982F52AB103 I don't see any...
  2. BrianPetersen

    Follow Up

    It isn't a "bad design from Ford". It isn't a problem until you created it! Every front-drive vehicle that I've ever owned that has twist-beam rear suspension, and there's been a few, relies upon spring preload to hold the rear springs (and spring seats) in place, via the dampers running out of...
  3. BrianPetersen

    Follow Up

    I do not think you want to be using limiting straps long term. I spy yellow dampers. Are they Bilstein? The B6 series are standard length. The B8 series are meant to be used with lowering springs to avoid this specific problem. If they are not Bilstein, perhaps your damper manufacturer can...
  4. BrianPetersen

    Wiring diagram for a petrol generator required

    Not the same (mine is FZR400), but the way the ignition system works will be the same!
  5. BrianPetersen

    Wiring diagram for a petrol generator required

    Yours (if it's like the diagram above) is a little bit different because the function of those transistors is built into the ignition box rather than being part of the magneto itself, and this might also mean the magnetic circuit is a little bit different. What they're calling the "ignition...
  6. BrianPetersen

    Wiring diagram for a petrol generator required

    Normal small-engine magneto assemblies have no breaker points, but there's more trickery in them:
  7. BrianPetersen

    Wiring diagram for a petrol generator required

    When that raised pad on the flywheel is passing the magneto, the clearance should be the thickness of a normal business card. The usual way of adjusting them is to slacken the bolts and slip a business card between the magneto and the flywheel (raised pad aligned with the magneto), let the...
  8. BrianPetersen

    Wiring diagram for a petrol generator required

    So the ignition doesn't work? These small engines are mostly the same in terms of their ignition circuit. There's a magneto coil (usually installed outside the flywheel), which goes to the spark plug, and there's a bypass circuit that goes to the "on/off" switch and sometimes to a low-oil-level...
  9. BrianPetersen

    NEED HELP WITH DETERMINING WAHT STAINLESS STEEL FASTENER TO USE

    Unless this is a forced-induction engine (seems unlikely with the existing design using what I call "wood screws") the clamping force is irrelevant. The screws just need to hold the upper manifold in place (against vibration and the like). Torque limitations are more to protect from gorilla...
  10. BrianPetersen

    Hydraulic Actuated Rear Wing system

    "51 cm" as in half a metre of actuator stroke?????? Usually automotive-scale drawings are in millimetres ... and the entire tailgate actuator on my car doesn't have half a metre of stroke!
  11. BrianPetersen

    Hydraulic Actuated Rear Wing system

    So. How much stroke on your actuator, and how much force??
  12. BrianPetersen

    BIW hem overlap minimum requriement

    Usually, this sort of joint is on door-skin outers to inners, or similar situations (the cosmetic outer is hemmed around the edge of the structural inner), so no spot-welding. Yes, you need to make sure the adhesive/sealant squeezes completely out both ends of the joint to avoid moisture...
  13. BrianPetersen

    Hydraulic Actuated Rear Wing system

    We haven't heard from the original poster in a wee bit, but here's another thought. IF this is a roadracing vehicle, then there is some logic in having a rapid transition between the low-drag position and the max-downforce position, and there's also a desire to reduce weight. And with that ...
  14. BrianPetersen

    Hydraulic Actuated Rear Wing system

    None of the rest of us knows the scale of your "adaptive rear wing". You gave us the time (questions below). How much force ... how much distance. That's the numbers you need. Powered rear wings/spoilers exist in production. Take a look at a few. Now ... Next question. Why on EARTH do you need...
  15. BrianPetersen

    Hydraulic Actuated Rear Wing system

    I don't understand your explanation. Flow-direction arrows and schematics indicating what is happening when, would help. BUT. Three directional valves and two accumulators to control one cylinder? I understand it needs "forward", "stop", and "retract". If you have a single source of pressure...
  16. BrianPetersen

    Lower Ball Joint in Tension

    Lots of older suspension designs were that way. The traditional American-car upper and lower wishbone suspensions with the spring acting on the lower control arm were that way for decades. All of the Ford Fox body cars, Mustang, Fairmont, etc (MacPherson, but with the spring separate from the...
  17. BrianPetersen

    Carb. Jetting using an A/F gage

    If the airbox included a long intake runner and the pod filter did not, I'm not surrprised that it ran better with the airbox, because of that long runner. There might be something found in tailoring the length of that runner to the operating RPM of the engine. On my race bike (yamaha R3) the...
  18. BrianPetersen

    Carb. Jetting using an A/F gage

    Interesting. Usually any sort of airbox increases vacuum signal which means needing a smaller main jet, but so be it. I hear you on the hassles with jetting. I'm kind of surprised that the Navi uses a carb. The cbr125 and the grom both have fuel injection.
  19. BrianPetersen

    Thoughts on decoupled suspension.

    Wondering out loud whether the original poster had in mind a passive system (springs and dampers and linkages) or some level of active control (solenoid- or motor-actuated damper orifices, spring preload adjusters, or anti-roll bar preloaders). Packard TorsionAire (motorised rear self levelling...
  20. BrianPetersen

    Fine Dyno tuning

    Lambda measurement (whether gauge or datalogging) will turn that up without question, and it works fine on old skool carbureted engines just as well as with EFI, and it also gives an indication of "how much" something needs to be changed, so that you can zero in a lot quicker. I have a lambda...

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