Welcome to E.T.V. Damper Service Ltd

E.T.V. Damper Service Ltd are highly skilled in the servicing and repair of viscous dampers backed by more than 25 years of experience with the service department at Holset engineering. For more than half a century Holset have been involved with the development and manufacture of torsional vibration dampers. A few years ago ownership changed to Simpson International and more recently still - to Metaldyne.

E.T.V. Damper Service Ltd are a small but progressive and dedicated business maintaining the techniques involved with the servicing of viscous dampers pioneered by Holset and maintaining the same standards of responsibility and care required to ensure that a serviced damper will be restored to a level of quality, performance and durability comparable to the original damper.

We pride ourselves in being able to offer the highest level of quality and service in maintaining the protection for which this product has been formulated.

Technical advances in diesel engine development over the years, increases in speed levels and the increasing employment of turbocharging which itself has become a major influence in adding to the stresses and fatigue factors, have combined to intensify the severity of torsional vibration in the engine.

Protection against these harmful factors is provided mainly from torsional vibration dampers and as far as possible these devices have been improved to extend their durability and to meet the additional demands.

In the case of viscous dampers, mechanical improvements have reduced the likelihood of unexpected deterioration from bearing wear, etc . but have also assisted in extending the useful life of the silicone fluid which transforms the damaging vibrational energy into thermal energy by means of fluid shear. Gradually over a period of time this shearing action affects the molecular structure of the fluid resulting in a reduction in the effectiveness of the damper. It is therefore vitally important that servicing of the damper is arranged before this process has reached a point beyond which damage to the crankshaft and other items of transmission can become a danger.