I still haven't been able to find the tool or get the the harmonic balancer nut off. I saw that tool in the service cd but where do you put it to lock the crank?

Since I can't find the tool, I tried the starter method. I put a 1/2" drive 27mm (12pt) socket with a 48" black iron pipe on the harmonic balancer nut. I hit the starter, letting the pipe swing 1/4 turn until it smacked a 2x4. I had sprayed the nut with wd40 2 hours prior. First time the pipe went flying, and only hit the 2x4 gently. Second time I duct taped the pipe and wrench together. A real solid hit the second time, but it was still not enough to loosen the nut.

Has anyone loosened the big harmonic balancer nut using this starter method? Should I shorten the pipe and increase the swing to 1/2 turn? What's next?

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1989 420 SEL