GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 6125-1B Slide Hammer
    • J 41348 Main Bearing Cap Puller

    Notice: This engine has side bolts on all of the main caps except the rear cap. These bolts must be removed to service the caps.


    Object Number: 35863  Size: SH
  1. Remove the crankshaft main bearing cap side bolts.
  2. Remove the crankshaft main bearing cap bolts.
  3. Notice: Main bearing caps are press fit. Remove the caps carefully for service. J 41348 has been designed to work with J 6125-B in order to prevent damage to the bearing and cap. J 41348 MUST be installed properly into the bolt holes of the caps and J 6125-B attached to J 41348 in order to properly remove the main cap without damaging the bearing or the cap. Any deviation from this procedure may cause damage to the cap and the bearing and may result in future engine damage.


    Object Number: 36704  Size: SH
  4. Install the J 41348 into the crankshaft main bearing cap bolt holes.
  5. Tighten the bolts on the J 41348 to 12 N·m (100 lb in).
  6. Install the J 6125-1B to the J 41348 .
  7. Use the J 6125-1B to remove the crankshaft main bearing cap.

  8. Object Number: 35863  Size: SH
  9. Remove the crankshaft.