Locking injection pump at commencement of injection — AUDI

🧭 Before you start

• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: dial gauge

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• To ensure the injection pump high-pressure pistons are at TDC, turn injection pump pulley slowly against engine direction of rotation (clockwise) using counterhold3036.
• The dial gauge needle must remain at "“0”", reset dial gauge to "“0”" after reaching TDC if necessary.
• Turn injection pump pulley slowly in engine direction of rotation (anti-clockwise) until dial gauge needle shows 0.35 mm stroke using counterhold3036.
• Turn injection pump pulley slowly in engine direction of rotation (anti-clockwise) until dial gauge needle shows 0.55 mm stroke using counterhold3036.

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📐 20 workshop diagrams for ACV

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Screw adapter 3313 into location for sealing plug.
2. Fit dial gauge (measuring range 0...3 mm) into adapter (with a preload of 2.0 mm)
3. Check that marks on injection pump pulley and injection pump are aligned (arrows).
4. Loosen locking bolt (2) on injection pump.
5. Remove underlying intermediate plate (1).

6. Set dial gauge to "“0”".
7. To ensure the injection pump high-pressure pistons are at TDC, turn injection pump pulley slowly against engine direction of rotation (clockwise) using counterhold 3036.
8. The dial gauge needle must remain at "“0”", reset dial gauge to "“0”" after reaching TDC if necessary.
9. Turn injection pump pulley slowly in engine direction of rotation (anti-clockwise) until dial gauge needle shows 0.35 mm stroke using counterhold 3036.
10. Turn injection pump pulley slowly in engine direction of rotation (anti-clockwise) until dial gauge needle shows 0.55 mm stroke using counterhold 3036.
11. Tighten injection pump locking bolt to 30 Nm. — 30 Nm (22 lb-ft)
12. Remove dial gauge and reinstall sealing plug in injection pump.

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