M/T - Prevention of Shifter Blocking

9231mitsubishi01

NO. TSB-92-22-002

DATE April, 1992

MODEL 1990-92 Eclipse (all with DOHC engine and M/T)
1991-92 Galant (all with DOHC engine and M/T)
1991-92 3000GT (all with M/T)
1992 Expo and Expo LRV (all with SOHC engine and M/T)


PURPOSE

To prevent shifter blocking* in some manual transaxle vehicles equipped with fiber-coated synchronizers, a friction modifier has been developed. This Technical Service Bulletin describes installation instructions and parts information for the friction modifier

*Shifter blocking is a difficulty or lack of smoothness in the operation of the shift leveL

VEHICLES AFFECTED

1990-92 Eclipse (all with DOHC engine and M/T)
1991-92 Galant (all with DOHC engine and M/T)
1991-92 300OGT (all with M/T)
1992 Expo and Expo LRV (all with SOHC engine and M/T)

DESCRIPTION

For smooth shifter lever operation, all fiber-coated synchronizers used in manual transaxles are pre-soaked with a friction modifier prior to assembly. In some instances, the friction modifier may dry up before the transaxles are assembled. This can lead to customer complaints of shifter blocking. To improve the smoothness of the shifter lever operation, it is necessary to install an additional amount of friction modifier to the manual transaxle case.

The remainder of this bulletin provides a vehicle/transaxle application table and describes how to install the friction modifier

Use the application table on page 2 to determine which vehicles are equipped with fibercoated synchronizers.





VEHICLES EQUIPPED WITH FIBER-COATED SYNCHRONIZERS





INSTALLATION PROCEDURE

1. Check the transaxle oil level. If necessary, add oil until the unit is full. Refer to Group 22 of the applicable service manual for transaxle oil specifications and installation procedures.

2. Remove the speedometer driven gear assembly from the transaxle, leaving the speedometer cable attached.


3. Pour one bottle (7.5cc) of friction modifier into the speedometer gear opening.

CAUTION:
For accurate placement of the friction modifier, it must be installed through the speedometer gear opening. Do not install the friction modifier through the transaxle oil fill hole.

4. Carefully reinstall the speedometer gear assembly, making sure it meshes correctly with the transaxle drive gear. Tighten the retaining nut to 4 N-m (3 ft.lbs.).

5. Test drive the vehicle to check for speedometer gear noise. If noise is heard, re-check the gear installation for proper fit and carefully reassemble as needed.

PARTS INFORMATION

The friction modifier is available through your Regional PDC. The part number is ME581050.

WARRANTY INFORMATION

Position Code: 224010

Standard warranty procedures apply.