16 votes
Accepted

What are the differences between a dual mass flywheel and a standard flywheel?

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 ...
  • 28.6k
11 votes

What are the differences between a dual mass flywheel and a standard flywheel?

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 ...
10 votes

What are the differences between a dual mass flywheel and a standard flywheel?

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 ...
2 votes

Car bounces back and forth after shifting

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 ...
2 votes

Could gearbox be damaged by pushing gear lever too hard with broken clutch?

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 ...
  • 10.1k
1 vote
Accepted

volvo c30 DMF or driveshaft bearing?

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 ...
  • 34.4k

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