Pinpoint Test C: Arc Spring Tests
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.
- C1: ARC SPRING TEST 1
- Rotate the secondary flywheel clockwise and counter clockwise by hand relative to the primary flywheel
Is an increasing resistance to rotation detected in both directions?
Yes
GO to C3.
No
GO to C2.
- Rotate the secondary flywheel clockwise and counter clockwise by hand relative to the primary flywheel
- C2: ARC SPRING TEST 2 WARNING: This step requires the aid of another technician.
- Using a suitable lever, with the assistance of another technician lock the primary flywheel
- Install two bolts into the secondary flywheel
- Use a suitable lever to rotate the secondary flywheel slightly in the direction in which there was no movement relative to the primary flywheel, to centralise the internal torque limiter
- Rotate the secondary flywheel clockwise and counter clockwise by hand relative to the primary flywheel
Is an increasing resistance to rotation detected in both directions?
Yes
GO to C3.
No
GO to C2.
- C3: ARC SPRING TEST 3 NOTE: 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 and counter clockwise by hand relative to the primary flywheel and listen for unusual clacking, grating or rasping sounds
Were any unusual sounds audible?
Yes
Install a new dual mass flywheel
No
GO to PINPOINT TEST D .