Pinpoint Test D: Operating Angle Test
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
- D1: OPERATING ANGLE TEST 1 NOTE:
- All dual mass flywheels have an operating angle. This is the angle through which the secondary flywheel can rotate relative to the primary flywheel before spring resistance is felt.
- A dual mass flywheel is matched to the engine performance characteristics. After market engine performance upgrades may damage the dual mass flywheel and such damage is not claimable under warranty
- Rotate the secondary flywheel clockwise by hand relative to the primary flywheel until spring resistance is felt
- Allow the spring pressure to rotate the secondary flywheel counter clockwise and identify the point at which spring pressure is no longer present
- Using a suitable pen, draw a line across the edges of the primary and secondary flywheels
- Rotate the secondary flywheel counter clockwise by hand relative to the primary flywheel until spring resistance is felt
- Allow the spring pressure to rotate the secondary flywheel clockwise and identify the point at which spring pressure is no longer present
- Draw a line across the edge of the primary flywheel adjacent to the existing line on the secondary flywheel
- Count the number of starter ring gear teeth between the two lines on the primary flywheel
Are there more than six starter ring gear teeth between the lines?
Yes
Install a new dual mass flywheel
No
Dual mass flywheel operating angle within specification