To date we have replaced 107 HAPI aluminum flywheels in the last 28 years. I would guess that 100 of them were 4 dowel versions. Most of the builders caught the problem via the service bulletin. The flywheel will start to elongate in the dowel pins holes and eventually crack between the holes which then lets the flywheel free spin so to speak.
If memory serves, HAPI, the company was sold to Mosler Motors in 1988 -89 ish. This company then became Total Engine Concepts. So it is likely that many of the Mosler/TEC engines also had the acquired HAPI flywheel inventory installed on their engines also. Steve Bennett ifly...@msn.com _________________________________________________________________ Windows 7: I wanted simpler, now it's simpler. I'm a rock star. http://www.microsoft.com/Windows/windows-7/default.aspx?h=myidea?ocid=PID24727::T:WLMTAGL:ON:WL:en-US:WWL_WIN_myidea:112009
