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9
Analysis
and diagnosis
of damage
to the Dual Mass
Flywheel
Always check the D.M.F. when replacing the clutch
and replace when necessary. A worn and defective
D.M.F. can damage the newly installed clutch.
A full functional test can only be performed at a
properly equipped test facility. This guide to visual
inspection and measurements can be used to
decide whether the Valeo Dual Mass Flywheel must
be replaced or not.
In case of doubt, always replace the D.M.F. together
with the clutch. Reworking the secondary flywheel
friction surface is not possible. Never install a
dropped D.M.F.
Before installation
l
Check the shaft sealing rings for oil leakage and
replace if necessary
l
Check starter ring for any damage
l
Always use new fixing bolts
l
Check if the dowel pins are correctly positioned
l
Clean the contact surfaces using a damp cloth
For more information on the Dual Mass Flywheel
and the common failures, visit:
www.valeo-techassist.com