GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996

Release Bearing

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REMOVAL & INSTALLATION



The clutch release bearing used with the 5TM40 manual transaxle is a conventional type bearing. It is snapped into a clutch release forkshaft and held in place. This type bearing is generally used with a push type clutch assembly.

The release bearing used with the Getrag 284 is snapped into the clutch pressure plate. This type bearing is used with a pull type clutch assembly and may be held in place by one of two methods. The first method is a wedge collar and wire ring. The second is a simple snapring retainer. Both retainer methods allow the release bearing to be snapped onto the clutch fingers and held in place during clutch operation. If any of the collar legs are broken or bent, or if the wire ring is distorted, the wedge collar/wire ring or snapring should be replaced.

Conventional Type

See Figures 1 and 2



Click image to see an enlarged view

Fig. Fig. 1: Release bearing and forkshaft-used with 5TM40 manual transaxle



Click image to see an enlarged view

Fig. Fig. 2: Pack the release bearing with a suitable grease-used with 5TM40 manual transaxle

  1. With the transaxle removed, the bearing is located on the clutch release shaft located in the bell housing of the transaxle.
  2.  
  3. The bearing is held in place by retaining clips. Simply pull the bearing from the forkshaft.
  4.  

To install:

Do not place the bearing in degreaser, or damage to the seals will result. If the bearing is going to be reused, clean by wiping with a clean cloth. Inspect it for galling or other signs of wear.

  1. Lightly lubricate the clutch fork ends with a suitable bearing grease.
  2.  
  3. If the bearing is not a seal type bearing, pack the bearing with a suitable grease.
  4.  
  5. Install the release bearing onto the clutch fork. Levers on the forkshaft must bear on the large ears of the release bearing. The levers fit between the 2 large ears and small tangs of the bearing. The fork shaft must move freely with the bearing in place.
  6.  
  7. Position the release fork and bearing back toward the transaxle and tie shaft actuator lever to prevent it from moving out of position.
  8.  

The clutch lever must NOT move toward the flywheel until the transaxle is bolted to the engine, otherwise damage to the transaxle could result.

Wedge Collar Type

See Figure 3

Click image to see an enlarged view

Fig. Fig. 3: Removing the clutch release bearing from the pressure plate assembly-wedge collar type

  1. Remove the clutch pressure plate and disc from the flywheel.
  2.  
  3. Hold the wedge collar in towards the pressure plate. Working from the engine side of the pressure plate, use a prytool to remove the wire ring from the wedge collar legs.
  4.  
  5. Pry the wedge collar from the pressure plate assembly.
  6.  

Take care not to deform the wire ring as a deformed wire ring will allow the bearing to pull out of the clutch during operation. Also take note of the bearing condition. Heavy galling on either bearing or sleeve indicates replacement is necessary.

To install:
  1. Push the wedge collar (without the wire ring) in to the clutch pressure plate assembly.
  2.  
  3. Hold the wedge collar in towards the pressure plate assembly.
  4.  
  5. Working from the engine side of the clutch pressure plate, install the wire ring onto the V-bend in the wedge collar legs.
  6.  
  7. Install the clutch drive disc and pressure plate to the flywheel.
  8.  

When removing installing the transaxle, care must be taken to prevent the transaxle input shaft from contacting the clutch wedge collar and wire ring or damage to the wedge collar and wire ring may result.

Snapring Type

See Figure 4

Click image to see an enlarged view

Fig. Fig. 4: Removing the clutch release bearing from the pressure plate assembly-snapring type

  1. Remove the clutch pressure plate and disc from the flywheel.
  2.  
  3. Lay the clutch pressure plate assembly up on a flat surface.
  4.  
  5. Lightly push down on the clutch cover assembly to partially open the release bearing attaching snapring.
  6.  
  7. Use a snapring pliers to open the snapring. Lift the pressure plate assembly up to allow the release bearing to slide out.
  8.  

Inspect the bearing. Heavy galling on either bearing or sleeve indicates replacement is necessary.

To install:
  1. Insure that the bearing sleeve outer surface is free of any oil or grease deposits.
  2.  
  3. From engine side of the clutch pressure plate, spread the snapring open.
  4.  
  5. Push the release bearing in place far enough to seat the snapring. Release the snapring.
  6.  
  7. Install the clutch drive disc and pressure plate to the flywheel.
  8.  

 
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