Looks interesting. It's a good thing to get an alternative to the 9201 tool and Kricket. For 928s, Jay Kempf made a spring tool that's used by many hundreds of 928 owners. It's similar to an obsolete Porsche tool. I use the Kempf tool to get the belt tension in the "ball park" since it's really easy to use...then the 9201 to fine tune the belt. The 9201 is a pain in tight quarters but a breeze on open belts like the AC ribbed belt, etc. The Kempt tool won't work on 944s/968s but I wonder why some adaptation might not work. There's probably a good reason.
For the 27mm wrench for the Balance Belt change, I just took a really cheap Chinese wrench and ground it to size with a grinder. I took a look at the speciality tool with the two side prongs on it and just bought one instead of jerry rigging something. For Porsches, the right tools make all the difference.
Harvey
