What are checks to be carried out on connecting rod bolts?
Connecting rod bolts are critical fasteners in an engine, and failure can lead to catastrophic engine damage. When working with connecting rod bolts — whether during engine rebuild, inspection, or maintenance — several checks must be performed to ensure their integrity and proper function. Here's a breakdown of the essential checks: 🔧 1. Visual Inspection Check for signs of wear or damage: Cracks, nicks, dents, pitting, corrosion, or discoloration (overheating). Thread condition: Ensure threads are not stripped, galled, or stretched. Use a thread chaser or gauge to verify clean and accurate threading. 📏 2. Dimensional Checks Bolt Stretch / Elongation: Measure the bolt's length before and after torquing. If the bolt has stretched beyond specification, it must be replaced. Compare with manufacturer specs for acceptable elongation. Shank diameter: Check for uneven wear or thinning. Use a micrometer to confirm dimensions. 🧪 3. Torque and Torque-to-Yield (TTY) Considerations Chec...
