General Motors — Piston and Connecting Rod Removal
Repair & overhaul
From a General Motors service manual — check it applies to your exact model before use.
Before you start
- Avoid mismatching connecting rods and caps; remove only one cap at a time.
Procedure
- Remove ridge at top of cylinder with ridge reamer.
- Remove connecting rod caps one at a time; mark rods.
- Install J 5239 onto the connecting rod bolts.
- Push piston and connecting rod out of block using guide rod.
- Install connecting rod cap onto rod; do not tighten.
Tools required
- J 5239 Connecting Rod Guide Set Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: General Motors service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.