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  1. automotive design - What is a sprag unit and what does it do? - Motor ...

    Jan 20, 2016 · I know a sprag unit is used in the transmission. What is it and how does it work? Is it used anywhere else or is it strictly a thing used in transmissions? Are there different kinds of sprags?

  2. gears - Motor Vehicle Maintenance & Repair Stack Exchange

    Jul 20, 2015 · The Bendix is the one way clutch or (like a sprag) which has the gear stuck on the end of it (there to provide over-run protection in case the engine starts while you still have the key in the …

  3. Difference between "dumping the clutch" and N->D in an auto?

    Jul 10, 2016 · Internally, the transmission is made up of bands, planetary gears, clutches, steels, sprag units, servos, and at least one pump to move the fluid around. You have a valve body which directs …

  4. 2012 GMC Acadia Denali starting issue - Motor Vehicle Maintenance ...

    Feb 7, 2026 · Interior powers on, but won't even attempt to crank. The codes are p011,p014, p017. Engine light is on. Getting power to the relay. Swapped relay with another, same issue. What to …

  5. How can torque converters fail? - Motor Vehicle Maintenance & Repair ...

    Aug 2, 2015 · A torque converter (TC) can fail in several different situations: Since TCs are made of metal, they are welded together. These welds can fail (split or break) due to excess pressure or by a …

  6. Could less than optimal battery charge prevent starter bendix drive ...

    The sprag clutch is in there to stop the starter from overrunning (and charging the battery) once the engine starts. It kind of sounds like this is the kind of starter cinelli is talking about, but I'd had to …

  7. Proper crank time for auto start to avoid damage/dead-battery

    The sprag clutch has, by its definition, a one-way bearing in it, which allows it to spin freely in one direction, yet is locked in the other direction. It is there for just the reason you describe.

  8. charging - Motor Vehicle Maintenance & Repair Stack Exchange

    Sep 27, 2024 · I am unable to get the J1772 adapter to "stick" in the inside of the Tesla Universal Wall charger holding port, or release / remove the adapter manually from the CCS Tesla …

  9. Why don't FWD cars have rear differentials?

    Feb 6, 2013 · I wouldn't go so far as to say FWD cars don't have a rear axle. They could certainly have a rear axle--but the rear wheels would ride on independent bearings, so you're right about the key …

  10. free moving bike in gear - Motor Vehicle Maintenance & Repair Stack ...

    Oct 21, 2016 · I believe that your motorcycle has a one way sprag clutch. This is most likely your failure point. When the attacks on internet ease up you can likely verify this and even find some videos on …