You need to remove the tensioner body so you can pull the plunger out the business end. Then reinstall the body, insert the plunger, and reinstall the spring and cap.

__________________
Prost!

Yes, that's how I did it when I did the head job on my '93 2.3

__________________

1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible