Engine Timing Tool Set for BMW N40-N45

Specifications

How to Use

1.Turn the engine to TDC (Top Dead

Centre ) No 1 cylinder.

2. Remove the blanking plug and insert

the correct Flywheel Timing Pin A or B.

3. Check that the curved shape on the

rear of each camshaft points upwards.

4. Install the Inlet Camshaft Alignment

Tool E, and then the Exhaust Camshaft

Alignment Tool F.

5. The Valve Timing position is considered

correct when the Tool position relative

to the cylinder head is either flush/

touching of slightly raised on the inlet

side only.

6. Maximum gap on Inlet Tool E is 0.5
7. and 1.0 mm. on Exhaust Tool F.
8. The Chain Tensioner plunger is spring

loaded, but should be drained of oil

and the Plunger compressed slowly

twice if being re-used.

8. Install the Pre-tensioning Tool C and

tighten the centre screw until light

contact with the guide rail.

9. Replace the the bolts on each camshaft

adjuster and hand-tighten.

10. Install the Sensor Gear Alignment Tool

D and secure to the cylinder head.

11. Slaken, half a turn, the the bolt of

each camshat adjuster, and pre-load

the timing chain with Tensioning Tool

C to 0.6 Nm.

12. Tighten each camshaft adjuster bolt

following the manufacturers

specification.

13. Re-install the tensioner assembly.
14. Remove all tools, and rotate the

Crankshaft twice.

15. The valve timing is correct when each

of the alignment tools A or B, E and F

can be re-fitted