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A dual mass flywheel (or DMF) is a flywheel that is split into two halves (hence the name...), with a spring or springs between them to dampen out sudden changes in torque and rotation speed, and thus smoothen out vibrations in the drivetrain - making for a smoother drive, particularly in diesel engined vehicles, and the newer two and three cylinder engines ...


11

The dual mass flywheel is typically misunderstood by a number of people. It's function is not to provide a smooth ride but is actually designed to protect the gearbox from destruction. My car, a run of the mill Volkswagen 1.9 TDI from twelve years ago, develops a staggering 250ftlb of torque. If this was fitted with a solid flywheel, this is more than ...


10

Adding to what Nick and Steve have said. Consider the millisecond-by-millisecond operation, and that the rated torque is an average over the engine cycle. In fact the engine is producing large spikes of torque during each cylinder's combustion event. Rather than transferring this into the gearbox the DMF averages the torque output, reducing the peak and ...


2

I've experience this in my 06 TC, I don't have a DMF but know the exact feeling you're talking about. The first Time I experienced it was while learning stick on a friends car, and it jerked the car quite a bit between shifts. I also occasionally feel the jerking in my car when shifting too quick, especially when accelerating hard and dropping the clutch. It ...


2

Yes, you can damage your transmission by "forcing" the shifter. The most common damage would be bent or broken shift forks. These are fork-shaped parts that move the gears along the shafts to engage with other gears. When you force the lever you put excess stress on the forks and they can bend or break. You will know they are damaged because the ...


1

Sounds like a driveshaft joint or support bearing. If it failed completely and hit other things as you moved it then you will need to check brake lines, suspension components and any abs / brake wear warning wires - anything in the area of the broken part...


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