Replace One Piston And/or Con-Rod Opel Astra H

Remove

1. 1. Remove piston with con-rod

Important. Do not damage piston or con-rod. Use protective jaws.

2. 2. Detach piston from con-rod • Clamp piston (1) in vice with con-rod (3) • Remove 2x piston pin retaining ring (2) • Remove piston pin (4) – Push piston pin out of piston and con-rod by hand • Remove piston

Install

Important. When assembling the piston and its con-rod, note the recess in the piston (2) and the code (1) of the con-rod

3. 3. Attach piston to con-rod • Insert the piston pin in the piston • Fit piston with piston pin on con-rod • Insert piston pin through con-rod in piston

Note. Coat piston pin with engine oil.

Note. The ring groove for the piston pin retaining ring must be free.

4. 4. Fit 2x piston pin retaining ring in piston

Note. Ring gap must be positioned in region of measurement I (maximum 30° )

5. 5. Set piston ring gap

Note. Arrange joint of piston rings offset by 120°

6. 6. Remove piston with con-rod from vice
7. 7. Install piston with con-rod