Engines with manual transmission usually have much flywheel, typically 5 to 40 kg of cast iron, with the starter ring equipment shrunk onto the exterior.
That is done by heating the ring to around 200 °C to expand the ring which is then rapidly positioned onto the flywheel, often held in firmly against a location shoulder until coolin in calm air . The interference suit between ring gear inside dia. and flywheel, usually ranging from 0.20mm to 0.50mm, renders the starter band firmly mounted on the flywheel.

1. Heating must be done as uniform as feasible rather than with a gas burner, as this process causes great temperature differences to the pieces.

2. the temperature ought to be 200°C. A temperature greater than 350°C will affect the apparatus tooth hardness.

3. Do not make use of compressed surroundings or coolant to cool down the ring.

4. A precise centering and flattening of the parts in the flywheel can be an absolutely essential condition.

5. The initial center planetary gearbox distance should be maintained.

6. Cool power press system should be avoided because of to a substantial tension triggered to the hardened area.

Engines with automatic transmissions instead possess a pressed metal plate with the starter ring equipment usually welded onto the outside of the plate.