Connecting Rod and Piston Balancing - Endura Engine Rebuild - Ep. 4.2
Second stage of balancing the Endura engine, comparing the weight of connecting rods, rod caps, pistons, and wrist pins to identify actual differences across assemblies. The job involves relieving material and equalizing not just individual parts, but the combined piston-and-pin assembly to reach the same target mass.
Video chapters
- 00:00 Let's get started!
- 00:11 Weighing the connecting rods for balancing
- 01:28 Connecting rod weighing results
- 04:29 Pocket scale: higher precision when weighing
- 05:00 Precision difference between scales, updated results
- 05:50 Explaining how I will balance the piston
- 07:11 Where to remove weight from the piston
- 08:38 Using the Dremel to remove material from the piston
- 09:30 Weighing the piston again after initial material removal
- 11:12 Showing the final result on the 1st piston after material removal and weight equalization
- 14:04 Final weight balancing results for pistons and pins
Tools used
- precision scale (0–500g, 0.1g resolution)
- rotary tool / Dremel with abrasive grinding stone (grinding stone (abrasive))
- rotary tool / Dremel with sanding drum (sanding disc / sanding drum)
- sandpaper
Parts mentioned / replaced
- pistons
- connecting rods
- wrist pins