Camshaft Bearing Removal

Tools Required 

J 33049  Camshaft Bearing Service Set

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 rear bore.

Fig 1: View Of Camshaft Rear Bearing Hole Plug
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 for loose fit in the engine block bearing bores (positions 1-5).
Fig 2: View Of Engine Block Bearing Bores
Courtesy of GENERAL MOTORS CORP.
3. Select the expanding driver (4-8) and washer (2 or 3) from the J 33049  .
Fig 3: View Of J 33049 Camshaft Bearing Service Kit Components
Courtesy of GENERAL MOTORS CORP.
4. Assemble the J 33049  .
IMPORTANT: Remove the inner bearings in 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  .
Fig 4: View Of J 33049 Camshaft Bearing Tool & Nylon Cone
Courtesy of GENERAL MOTORS CORP.
8. Drive the inner bearings in positions 2, 3, and 4 from their block bores.
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.
Fig 5: Driving Bearing From/Into Block Bore
Courtesy of GENERAL MOTORS CORP.