EA113 Oil Pump Hack: Balance Shaft Delete

EA113 Engine Oil Pump Hack – Balance Shaft Cut Out DIY

The EA113 engine oil pump has a well-documented design flaw that can lead to sudden engine failure without warning. Instead of swapping in a 1.9 TDI or 1.8T oil pump like some do, we’re taking a direct and aggressive approach—cutting out the balance shaft from the oil pump.

🔧 Why Do This?

• Avoids catastrophic oil pump failure
• Retains your original pump housing
• Eliminates balance shaft mechanical resistance
• Increases oil system reliability

🛠️ How It’s Done:

✅ Inspired by Taco8v — Huge credit to Taco8v ( look him up on youtube!) for the original concept. Watch his detailed video on: Taco8v YouTube Channel

1. Cut the balance shaft from the oil pump unit.
2. Seal 3 oil channels:
   Use a long screw to block 2 ports.
   Use an additional screw for the third.
3. Adapt a 1.8T / 1.9 TDI baffle plate:
   trim it for fitment.
   Drill a new screw hole.
   Modify intermediate plate/gasket to match your shortened pump.

Torque specs:

Oil pump screws sequence:

1. Tighten bolts hand-tight.

2. Tighten bolts to 15 Nm.

3. Turn bolts 90° further.

Chain sprocket bolt: 20 Nm + 90°

🛢️ After this mod, you’ll need approximately 1–1.5 liters more oil due to internal volume change.

👍 Found this useful? Share with others & subscribe for more DIY engine reliability hacks!