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BMW N63 Rod Bearings: What You Need To Know

BMW N63 Rod Bearings: What You Need To Know

15th Nov 2022

Rod Bearings are one of the essential parts of your engine assembly. They support the crankshaft and contribute to the smooth running of your BMW. The piston is connected to the crankshaft via connecting rods. As the crankshaft rotates, the rod lifts the piston up and down. BMW N63 Rod Bearings are a vital component to the functioning of your BMW N63 engine.

These bearings are what the connecting rods of your engine ride on and move up and down to make the pistons moving up-and-down to move the crankshaft, which powers the camshaft, which moves valves to fuel your vehicle with air/gasoline from your practical combustion chambers.

About BMW N63 Rod Bearings

The BMW N63 is a twin-turbocharged V8 petrol engine produced by BMW. The N63 engine is the world's largest first production automobile engine to feature a "hot-vee" arrangement, with the turbochargers housed inside the engine's "V." It is also the first turbo V8 engine produced by BMW.

The BMW N63 Rod Bearings were developed to replace the naturally aspirated V10 S85 engine used in the E60 M5 and E63 M6. The N63 shares many design features with the S85, including DOHC 4 valves per cylinder, aluminum block and head, forged steel crankshaft, double-row timing chain, and dry sump lubrication. However, unlike the S85, the N63 uses twin turbochargers and direct injection.

BMW introduced several improvements to the N63 over its production run, most notably switching from a mechanical to an electrical wastegate actuator in 2013. This change was made in response to customer feedback regarding turbocharger noise levels. Other updates include revisions to the oiling system and cooling system.

How to Change Your BMW N63 Rod Bearings

If you have a high-performance BMW N63 engine, it's essential to know how to change your rod bearings. This guide will show you everything you need to know, from what tools you'll need to how to install the new bearings properly.

1. First, you'll need to gather tools: a socket set, a torque wrench, a pry bar, and a hammer.

2. Next, remove the oil pan and drain the oil.

3. Disconnect the rod caps from the connecting rods. Be sure to note which cap goes on which rod so you can correctly reinstall them later.

4. Using the pry bar and hammer, gently tap out the old bearings from the connecting rods.

5. Clean the rods and bearing housings with a degreaser or brake cleaner. Inspect the rods for any damage and replace them if necessary.

6. Install the new bearings into the connecting rods using your socket set or a press. Make sure they are correctly seated before moving on to the next step.

7. Reattach the rod caps, being careful not to cross-thread them or over-tighten them. Use your torque wrench to tighten them down to specifications - typically between 22 and 28 ft/lbs for most BMW models.

Replacement BMW N63 Rod Bearing Benefits

If you drive a BMW with an N63 engine, you know that rod bearings are a common issue. But did you know those replacement rod bearings available can offer significant benefits over stock?

Here are some of the benefits of replacing your BMW N63 rod bearings:

  • Reduced noise: Replacement rod bearings can help to reduce engine noise, making for a quieter ride.
  • Improved performance: With reduced friction and better tolerances, replacement rod bearings can improve engine performance.
  • Longer life: With better quality and construction, replacement rod bearings can last longer than stock bearings.

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