Gear ring, change

Flywheel, removed.

1. Drill 1–2 holes between two teeth on the ring gear.

Use a cold chisel to split the ring gear at the drill site and remove the gear ring.

2. Brush the flywheel bed clean with a steel wire brush.

Heat up the new ring gear with a welding torch or in an oven, max. 180 –200°C.

IMPORTANT! Be careful to ensure that the gear ring is evenly heated, and not too hot in places, which could anneal it. Polish the gear ring in a number of places, to check the heating process.

Stop heating when these surfaces have become blued.

3. Put the heated gear ring onto the flywheel and tap it into place with a soft mandrel and hammer.

Let the gear ring cool in the fresh air.

Flywheel installation, please refer to the “Engine, assembly” chapter.