Main Street Machine

🔍 Main Bearing Damage — A Sign of Deeper Issues 🔍

The main bearings are the foundation of your engine’s rotating assembly, supporting the crankshaft and maintaining critical oil clearance under load. When they begin to show signs of wear or failure — like the set pictured here — it’s more than just a surface-level problem.

Common causes of main bearing damage include:

▪️ Insufficient oil pressure or lubrication breakdown
▪️ Contamination from debris or improper assembly
▪️ Out-of-round main bores or misalignment
▪️ Over-revving or excessive bearing load
▪️ Improper clearance during initial assembly

Damage to main bearings often leads to catastrophic failure if left unaddressed. At Main Street Machine, we inspect, measure, and correct these issues using precision machining techniques to restore proper geometry and oiling characteristics.

Whether you're dealing with early signs of failure or a full rebuild, our team is equipped to diagnose the root cause and restore your bottom end with uncompromising accuracy.

📍 Bay St. Louis, MS
📞 Contact us today to schedule your engine assessment.

🔧 Precision Matters! 🔧

Here at Main Street Machine, we don’t cut corners when it comes to engine builds — especially Subaru blocks.

What you’re looking at is a torque plate being used during the machining process. This allows us to simulate the stress a head would apply when torqued down, ensuring your cylinder bores stay perfectly round for ultimate performance and longevity.

Whether it’s a high-horsepower build or a fresh OEM-spec overhaul, we give every engine the attention to detail it deserves.

📍 Quality machining. 📍 Proven results. 📍 Built to last.

📞 Ready to start your build? Get in touch with us today.