Tools Required

J 33049  Camshaft Bearing Service Set

Fig 1: View Of Camshaft Rear Bearing Hole Plug
Courtesy of GENERAL MOTORS CORP.
1. Remove the camshaft rear bearing hole plug, if not previously removed.

   Insert a long bar through the front of the engine and drive the plug out of the bore.

Fig 2: View Of Engine Block Bearing Bores
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: A loose camshaft bearing may be caused by an enlarged, out-of-round, or damaged engine block bearing bore.
2. Prior to bearing removal, inspect the camshaft bearings (1-5) for loose fit in the engine block.
Fig 3: View Of J 33049 Camshaft Bearing Service Kit Components
Courtesy of GENERAL MOTORS CORP.
3. Select the expanding driver (4-8) and washer (2 or 3) from the J 33049  .
4. Assemble the J 33049  .
Fig 4: View Of J 33049 Camshaft Bearing Tool & Nylon Cone
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Remove the inner bearings from positions 2, 3, and 4 first. The outer bearings in positions 1 and 5 serve as a guide for the J 33049  .
5. Insert the J 33049  through the front of the engine block and into the bearing.
6. Tighten the expander assembly nut until snug.
7. Push the guide cone into the front camshaft bearing in position 1 to align the J 33049  .
8. Drive the inner bearings from positions 2, 3, and 4.
Fig 5: Driving Bearing From/Into Block Bore
Courtesy of GENERAL MOTORS CORP.
9. Assemble the J 33049  handle, expanding driver, and washer.
10. Insert the J 33049  into the outer camshaft bearings.
11. Drive the outer bearings from the bore.