Disclaimer2020 Porsche Boxster S (986) F6-3.2L Technical Service Bulletin # 4/02 Date: 021213
Drivetrain - Dual Mass Flywheel Check Procedure
Boxter
4/02 1360
12/13/02
Binder - Group 1 - Engine Part 1
Dual Mass Flywheel Check Procedure
Vehicle Type:
Boxster/Boxster S
Model Year:
As of '97 (V)
Equipment:
Manual transmission
Concerns:
Complaints about the dual mass flywheel (DMF) due to transmission noises (rattling, knocking noise):
The noises occur...
- at engine start and/or
- at load shift and/or
- during idling and/or
- when switching off the engine.
Situation:
Dual mass flywheels which have been returned under warranty.
Information:
Dual mass flywheels which have been returned under warranty to the Porsche AG Service Test Center are subsequently tested for proper function
by the manufacturer. Test results have shown that, apart from a few exceptions, the dual mass flywheels involved in complaints are determined to
be in proper working order.
Important:
2020 Porsche Boxster S (986) F6-3.2L Page 125
A test of a DMF must only take place if a complaint has been received concerning transmission noises (rattling, knocking) in the operational or
driving conditions stated above.
Procedure:
Assessment of DMFs Involved in complaints:
The twist test on the DMF shown must be carried out by hand and without any tools. The test can be carrier out in installed or removed status. (In
removed status, a second person is required to counter hold).
The twist distance must be measured at the external diameter of the DMF (Figure 1, arrow).