Dual Clutch, Installing
Special tools and workshop equipment required
- Dial Indicator Holder:VW 387
- Dial Indicator - 0-10mm:VAS 6079
- Retaining Bar:T10524
- Thrust Piece:T10526
- The drive plate must remain engaged between the teeth of the outer clutch plate carrier.
- If the drive plate is loosened, the clutch plates in the dual clutch can slip out of place. The dual clutch may not be correctly set during installation under certain circumstances.
- Do not remove or lift the clutch pack, not even a small amount! The clutch plates could rotate themselves.
Brief Description
- To remove and install the clutch, the transmission must be securely mounted on the assembly stand in a vertical position.
- The large plate carrier is inserted in all clutch plates in the dual clutch. It must not be slid out of the lowermost slat.
Installing
-- Use special caution when removing the dual clutch from the packaging.
- Do not remove or lift the clutch pack, not even a small amount. The clutch plates can rotate themselves.
-- Turn the piston ring by hand. They must move freely and must not stick.
-- Pay attention that the piston rings -1-, -2-, -3- and -4- are seated correctly. The ends of the ring -arrows- and the piston rings -1- and -3- must align with each other.
-- The ends of the ring -arrows- of the piston rings -2- and -4- should be 180° offset to the ends of the ring of the piston rings -1- and -3- and align.
Important! Drive plate position
-- Before installing, check if a mark -arrow- is on the dual clutch.
-- If no mark is present, apply a color coding of the drive plate and on the outer clutch plate carrier with a waterproof pen.
-- Insert the Retaining Pin:T10524 -1-.
- A second technician should hold the Retaining Pin:T10524 when inserting the dual clutch.
-- Carefully insert the -dual clutch- ; do not let it fall.
-- If necessary insert by lightly turning the clutch.
The dual clutch is in the correct installation position when the Retaining Pin:T10524 has very little play.
The retaining pin remains there until clutch end cover is installed.
Do not turn the dual clutch any further, otherwise the Retaining Bar:T10524 could be twisted in its position.
-- Pry out the drive plate circlip -2- with a screwdriver -1- -arrow-.
The circlip is reinstalled. Do not dispose of.
-- Place the Puller: T10525 with Puller - Unit Injector: T10055 on the splines and carefully drive out the drive plate from its seat -arrows-.
The Retaining Pin:T10524 must be held by a second technician when removing.
-- Carefully remove the drive plate from the dual clutch -arrows- and move to the side.
Do not remove or lift the clutch pack, not even a small amount! The clutch plates could rotate themselves.
Determine the shim for the dual clutch:
- The Retaining Bar:T10524 remains inserted.
-- Install the "old" circlip -arrow- temporarily.
Before this ring is disposed of, three measurements must be performed first.
First measurement (axial play of the shaft)
-- Install the Dial Indicator Holder:VW 387 on the transmission flange.
-- Place the -dial gauge button- on the input shaft.
-- Adjust the -dial gauge- pretension to 0.
-- Pry up the dual clutch using the T-Handle Hook:3438 in the -direction of the arrow- using force upward all the way and note the measurement result.
-- Name this value "A".
The value is needed later for a measurement check for this reason retain the value "A" until the last measurement.
Second measurement
- The Retaining Bar:T10524 remains inserted.
-- Place the gauge button -on the hub of the large clutch plate carrier-.
The plunger must not rest on the circlip.
-- Adjust the -dial gauge- pretension again to 0.
-- Raise the double clutch upward using force until stop and note the measurement.
-- Name this value "B".
Now which shim will be installed is calculated:
-- Use this formula for this:
Measured value "B" minus the measured value "A" minus 0.11 = the thickness of the rings to be installed.
-- Write down the measurement result.
The adjusting rings are staggered in 0.05 mm increments.
-- Measure the shim and determine the shim which comes the closest to the result.
The next largest shim is always used, never install a smaller shim.
Example:
| Determined dimension of the shim | New shim |
|---|---|
| 1.28 mm | 1.3 mm |
| 1.26 mm | 1.3 mm |
-- Remove the old circlip -arrow-.
Do not dispose of the ring yet it will be needed again.
-- Install the determines shim.
Three measurements (check measurement)
Another measurement check is performed to check the shim. To do so proceed as follows.
- The Retaining Bar:T10524 remains inserted.
-- Install the old circlip -arrow- again.
-- Place the gauge button -on the hub of the large clutch plate carrier-.
The test probe must contact the shim -1-.
-- Adjust the -dial gauge- pretension again to 0.
-- Raise the double clutch upward using force until stop and note the measurement.
-- Name this value "C".
Now the final shim which will be installed is calculated:
-- Use this formula for this:
Measured value "C" minus measured value "A" = specified value
The specified value must be between 0.05 to 0.12 mm.
If the specified value is not reached then reach the specified value by installing a thicker or thinner shim.
-- Install a new circlip -arrow-.
-- Insert the drive plate into the dual clutch.
- When installing pay attention that the mark on the drive plate aligns with the mark on the outer clutch plate carrier -arrows-. Make note of markings that have been changed retrospectively.
-- Have a second technician hold the Retaining Bar:T10524 in its position and push it slightly outward.
-- Using the Bearing Installer - Differential Bearing:40-21 and a plastic mallet carefully drive the drive plate in its position.
-- Install the drive plate circlip.
-- Push the circlip on the opening starting clockwise in the end position.
- The circlip must be completely engaged.
-- Check the exact installation position of the circlip and that the circlip is engaged using a screwdriver.
-- Now remove the Retaining Bar:T10524 between the dual clutch and the housing.
-- Install the clutch end cover. Refer to CLUTCH END COVER, REMOVING AND INSTALLING .