Trouble double clutching smoothly?

Discussion in 'Questions From New Drivers' started by MYSTYKRACER, Nov 27, 2019.

  1. HillbillyDeluxeTruck

    HillbillyDeluxeTruck Road Train Member

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    You obviously understand engine speed then. Trucks that schools use are turned way down so they rev real slow as well, this doesnt help down shifting in my opinion.

    Also, watch a video on youtube about progressive shifting. It might actually help you.
     
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  3. MYSTYKRACER

    MYSTYKRACER Medium Load Member

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    Yeah, they gave us the "if you already know how to drive a manual, forget everything you think you know!" speech. I could see why folks say that BUT I think the skill sets aren't as dissimilar as it's made out to be. For me the biggest thing is understanding clutch pedal travel needs to only be about half of what I'm used too. As I said above, a big part of getting that right was actually getting my seat adjust properly so I wasn't naturally throwing my leg the full length. That adjustment helped A LOT!

    The other thing is getting used to really smashing the throttle down and waiting what seems like forever vs my car for the rpms to come up on the rev match. Truck engines are a different animal than the aluminum flywheel mated DOHC v8 in my Mustang! I'd never ride the throttle as long or as hard in my car so I've had to learn to ignore the "OVER REV!!!" warning buzzers going off in my head.

    There were important things that carried over though. Two of them I found helpful was understanding the "standard - H" shift pattern. Our instructors have spent a good bit of time explaining the "soft wall" vs "hard wall" of the shifter b/c people who are new to standard shift have trouble finding second and third gear. A lot of them think you have to move the shifter over from 1st to second and overshoot ending up in fourth. I didn't really have that problem b/c I already know the shifter will fall into the middle of the H between and second and third once you pull it from first ( or any other gear for that matter ) and just let it move to neutral naturally. The just push straight up or down to hit the middle gears.

    The other thing I found that was an advantage to already knowing how standard shift works was understanding every clutch has an engagement point and even when you get into a knew truck it's a pretty quick muscle memory exercise to figure out that pick up point and smooth out modulating the clutch especially on take offs. I got a lot of complements from our instructors and other class members for having the smoothest clutch engagement and take offs even when we were practicing backing maneuvers. I tried to explain how figuring out the pick up point of any truck your in and managing momentum is to your advantage. Some people got it but most of them didn't. I guess it's just a practice and familiarity thing but I think it is something that adapts pretty readily from driving a standard shift car.

    Yeah, they gave us a road speed chart and I think it's bs too! For one thing I think it trains people to spend FAR too much time looking at the speedometer and trying to get to a certain mph rather than watching the road! And you'd be doing it often at a time when you're slowing down to come stop which is exactly when you need to be paying attention to your spacing in traffic rather than staring at the dash. Most people who are good at driving a manual shift of any kind do it all by sound so they can keep their head up and eyes on the road.
     
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  4. MYSTYKRACER

    MYSTYKRACER Medium Load Member

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    Yeah, we talked about "floating" the gears. I can actually do it in my Mustang sometimes. One of our instructors actually told us that 9/10 professional drivers do it that way but you can't do it on the road test b/c the testers consider it not properly controlling the vehicle. I don't get it personally, seems like you actually spend less time out of gear by floating but whatever. Gotta do what you gotta do to get over the next hill!
     
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  5. D.Tibbitt

    D.Tibbitt Road Train Member

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    Once u get out there on ur own , if they put u in a manual, u will see how much better it is to float the gears and easier. The only time i use the clutch anymore is when starting from a stop at a stoplight. Coming to a stop sign if u downshift deep enough u can roll it up in low or 2nd gear and do a california rolling stop and pick it back up again if traffic is clear . sounds like u have a good idea of what ur doing so u will be fine just keep practicing and eventually u will be running thru gears like its nothing
     
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  6. FlaSwampRat

    FlaSwampRat Road Train Member

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    If you can float just make it look like you are using the clutch. That's actually what I do all the time. I push the clutch in like 1/2" inch so I don't think it's doing anything but it looks like I'm using it lol.
     
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  7. MYSTYKRACER

    MYSTYKRACER Medium Load Member

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    LOL! "Fake floating"
     
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  8. Wespipes

    Wespipes Road Train Member

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    Just do what you can driver! You'll never double shift once you're on your own That clutch will be used when you stop and when you first start to roll that's it.

    Take as much time as you need to get yourself comfortable in that seat. Mirrors seat steering wheel.
     
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  9. olddog_newtricks

    olddog_newtricks Medium Load Member

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    The only time you need a clutch is when you are taking off. Do what you have to in order to pass the class. Once you get out on your own forget all that stupidity about double clutching, it's a waste of time and unnecessary.
     
  10. x1Heavy

    x1Heavy Road Train Member

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    I don't worry about 4th gear or any gear out here. Whatever gear I am in vs say a Jersey traffic light change is what I gots. Maybe she lugs maybe she has horsies, but whatever gear at that moment it will be the gear to keep moving or stop.

    The one rule they used to teach without so much beating a dead horse is always keep power to the wheels. Essentially stay in gear. Particularly crossing railroad which was quite a lot in Baltimore.

    Big rigs are not cars. Cars synchronize to the engine and if there is room in the transmission gear you want it's good.

    Don;t worry about waiting on the engine. You are working too intensely. Trucking is not in a hurry, and at the same time you are. (Appointments)

    The Test is just a process. Once out and into the wilds around the USA you will be free to work all that out.

    Its been years since I touched a big rig, but the manual will need a hour or few to get good again. Just need to know the torque RPM and the High Horse RPM. It wont be pretty for about 40 miles to half a day or two.
     
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  11. tscottme

    tscottme Road Train Member

    Obviously you are paying attention. In a day or two things will cluck and you will upshift like a vet 90% of the time. That's about when you notice you have more problems downshifting. That's normal. You seem to be doing better quickly. A month from now you only be nervous on worst-case scenarios until you see enough of them to know you can ace them. My problem was learning to ignore the pressure I was feeling from the 4-wheelers behind me, who are always in a hurry. Ignore them.
     
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