Tony, I would recommend that you replace the throwout bearing when you
replace the clutch and pressure plate. The bearing is only a piece of carbon
and does wear as quickly as the clutch. As to turning the flywheel, you will
need to check it before you can make a decision but if you've gone to this
much trouble, I would go ahead and have it machined. In fact, when I did all
this on a recent engine rebuild, I did not have the flywheel lightened but
now I wish I had for a quicker reving engine. You do lose some of the low
end flexability of the B engine but the rpms build much more
quickly...impresses us motorheads! Your choice.
Bob Stafford
79 MGB
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