Window Regulators

We are know stocking a comprehensive range of FAI window regulators with other part numbers available next day.



We now stock a full range of gas at Round Towers Spares these gases include;

  • R134A,

all gas bottles are rent free however all bottles have a surcharge, but unlike a rental fee you receive your surcharge back when the gas bottle is empty and returned.

Dual Mass Flywheel Diagnosis

50% of Uk Vehicles are now fitted with dual mass flywheels and damped flywheel clutches. These are essential components that  not only provided a enhanced level of driveablity but also may reduce  harmful torsional vibration that would otherwise be transmitted into the gearbox and driveline.

Its important to check every time you replace the clutch. If you fit a clutch to a worn flywheel it will completely destroy it.

Step One

First listen for

  • Rattles and clonks during engine start up or turn off
  • Excessive  gear rattle
  • Unusual noises

Step Two 

After removing the clutch from the vehical  check the clutch for

  • driven plate damage
  • drive strap damage

Check the flywheel for

  • friction face scored
  • over heated/blueing
  • stress cracks
  • Grease loss

Step Three

With the flywheel still fitted

  • Rotate the secondary mass anti-Clockwise until pressure can be felt, then allow it to return
  • zero the special tool gauge or mark the position of the secondary mass relative to the ring gear
  • do the same in a clockwise,mark the flywheel position again count the ring gear teeth between the marks or read off the free play  angle from the special tool

Step four

To check the bearing  or brush  for wear

  • Gently measure the amount of rock at the outer edge of the secondary mass or on the special tool adaptor with a DTP.

Replace If movement is

  • More than 1.6mm for a roller type bearing
  • more thank 2.9mm for a bush type bearing