Thanks to Pedros Board this project went smoothly. A few observations:
- The one tensioner bolt is so long that I could not get it out without first bending the engine cover frame back a bit to give me clearance.
- Local Porsche dealer had to order the parts and were $70 more than Pelican Parts online order, and Pelican delvered pronto.
- Only the upper tensioner was shot but I replaced all three based on advice from you folks.
Now if only the snow would melt so I can take the Boxster out of the driveway.
Dan