Fluid Pump Installation

Tools Required: 

J 45053  Universal Clamp Press. See Special Tools .

Fig 1: Identifying Second Clutch Sprag Assembly
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Do not drop the second coast clutch and second clutch hub and second clutch sprag assembly (11).
1. Install the second coast clutch and second clutch hub and second clutch sprag assembly (11) into the fluid pump assembly.
Fig 2: Measuring Dimension B
Courtesy of GENERAL MOTORS CORP.
NOTE: If dimension B is not within specifications, adjust it to within specifications or damage to the transmission may occur.
NOTE: If the installed height is greater than specifications, the second coast clutch outer race assembly did not clear all the second clutch fiber plates and needs to be re-indexed to prevent a mechanical failure and/or damage.
2. Measure dimension B.

   Installation Height:  Dimension B should be 51.09-51.71 mm (2.011-2.035 in).

Fig 3: Installing Fluid Pump Assembly Onto Input Shaft
Courtesy of GENERAL MOTORS CORP.
3. Rotate the transmission assembly as shown.
4. Using J 45053  , install the fluid pump assembly onto the input shaft. See Special Tools . Align the bolt holes of the fluid pump body with the holes in the transmission case making sure that the second coast clutch and second clutch hub and second clutch sprag assembly remains correctly installed into the fluid pump assembly.
5. Lightly press the fluid pump body into the transmission case assembly in order to seat the fluid pump assembly in place.
Fig 4: View Of Fluid Pump Case Bolt
Courtesy of GENERAL MOTORS CORP.
NOTE: Make sure that ALL of the fluid pump to case bolts (5) are 28 mm in length, and were not used in either the torque converter housing or the transmission case cover installations. Using 30 mm bolts will cause internal damage to the transmission.
6. Install the 8 - M8 x 1.25 x 28 mm fluid pump to case bolts (5) and hand tighten.
Fig 5: Locating Fluid Pump Bolts
Courtesy of GENERAL MOTORS CORP.
7. Rotate the transmission assembly so that the fluid pump assembly is facing up.
NOTE: Refer to Fastener Notice in Cautions and Notices.
8. Tighten the fluid pump to case bolts in the correct sequence.

   Tighten:  Tighten the fluid pump to case bolts to 19.6-29.4 N.m (14.5-21.68 lb ft).