️ Installing Connecting Rods on Cross Head Pistons – Detroit Diesel 12V71 | DIESELPRO.COM

In this video, Diesel Pro Power (Miami, FL) demonstrates the installation of connecting rods onto cross head pistons for a Detroit Diesel 12V71—part of a complete engine rebuild. The 12V71 is a high-performance, two-stroke V12 engine used in marine propulsion, industrial machinery, and power generation, and this video focuses on its unique crosshead piston configuration.

Unlike conventional pistons, crosshead pistons consist of a separate crown and skirt, connected by a wrist pin and supported by button (slipper) bearings. This design improves thermal distribution and minimizes side loading, making it ideal for demanding applications where long-term durability is key.

This footage shows the careful process of assembling these parts, aligning them properly, and preparing them for installation into the engine block.

Note: This video is for demonstration purposes only. It does not cover torque specs, clearances, or safety protocols. Always refer to the official Detroit Diesel service manual when working on engine internals.

What You’ll Learn in This Video:

• Detailed view of crosshead piston components: piston crown, skirt, wrist pin, button bearing, and retainers

• How to install connecting rods onto the piston assembly correctly

• Importance of rod orientation and component alignment for smooth operation

• Visual guide to the internal geometry of a 12V71 piston assembly

• Clean, professional assembly techniques used in rebuild shops

This video is a must-watch for diesel mechanics, marine engineers, and Detroit Diesel rebuilders working on 12V71 or similar 71 Series engines.

Need Detroit Diesel 12V71 Parts?

Diesel Pro Power offers:

• Crosshead pistons

• Connecting rods

• Button bearings & wrist pins

• Full rebuild kits for the 12V71

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