Dual Mass Flywheel (DMF)
Modern engines can be driven at extremely low rpms. The trend is toward ever increasing engine torques. Wind-tunnel-optimized bodies are creating less wind noise. New calculation methods are helping reduce vehicle weights and weight-saving concepts are boosting engine efficiency as well. The addition of a fifth or a sixth gear can also reduce fuel consumption. Thinner oils are making precise shifting easier. In short: The sources of noise are increasing and natural damping is decreasing. What has remained is the principle of the internal combustion engine whose cyclical combustion processes excite torsional vibrations in the drive train – the unpleasant consequences of which are gear rattles and body booms.
Drivers who are accustomed to increased comfort no longer accept such background noises. The job of the clutch is now more important than ever – in addition to engaging and disengaging, it must effectively insulate the engine’s vibrations. Physically, this is easy to solve: The mass moment of inertia of the transmission must be increased without increasing the mass to be shifted. This dampens the engine’s torsional vibrations and brings about the desired comfort level. The process reduces load on the transmission at the same time.
The name says it all: The mass of the conventional flywheel was simply split in two. One part continues to belong to the engine’s mass moment of inertia, while the other part now increases the mass moment of inertia of the transmission. The two decoupled masses are linked by a spring/damping system. One clutch disc, without a torsion damper, between the secondary mass and the transmission handles the engaging and disengaging functions. A favorable side effect is that the transmission is easier to shift because of the low mass to be synchronized, and there is less synchronization wear.
St Helens Motor Centre have over 20 years experience repairing and replacing clutches, dual mass flywheels and associated components to all makes and models of cars vans and 4x4 vehicles
So whether you need a simple adjustment or a complete overhaul of the clutch system then contact us for a competitive quote.
All our clutches are brand new and original equipment specification units and are sourced from the worlds leading original equipment manufacturers. Luk, Valeo, Sachs, Borg & Beck and Exedy.
We do not fit reconditioned or after market clutches, as in our experience remanufactured clutches have a much shorter lifespan than brand new original equipment specification units.
Same day turnaround for 99% of vehicles and a while you wait fitting service is also available.
Prices start from as little as £140 + VAT call now for the best price on your vehicle