Quote:
Originally Posted by Rodsrsr
When I rebuilt my 915 I took it to DeJung Motorsports and I remember him telling me that he had to send the flywheel to a machine shop that specifically does Porsche work. he mentioned that the resurfacing process was different so maybe this is what he was referring to?
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Grinding a flywheel isn't a Porsche-specific process.
Maybe the fact some Porsche flywheels require two surfaces to be reground equally (e.g. early 911). If only one surface is cut or both cut unequally, this will upset the preload pressure on the clutch disk.
Sherwood