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« on: October 14, 2015, 12:04:16 AM »
Before I made that 50 mile drive over there I checked my 390 cast internally balance flywheel the same way. I came out with .0005" TIR run out using same procedure. It had been laying around a few years and the face was discolored so I thought I'd get it resurfaced also. After the guy resurfaced the 410 flywheel he washed the table and his spacer that he put under the flywheel real good, mounted the flywheel, tapped it around until it turned concentric, locked it down and started grinding. I heard a chirp-chirp-chirp as the wheel began grinding and my heart sank. I knew then his Blanchard was off or I was off on the flatness I'd found on that flywheel. Sure enough, this morning I found out it when I measured it showed .002" TIR.
I've decided to put the 390 back in the 57 Fairlane and I'll be using the cast flywheel the way it is. It would be nice if it had come out perfect but unless someone decides to drive my car and let the clutch out to where it only engages .001" into the flywheel I can't see trying to make it any better than what it is. And, if someone could ride the clutch that close on my flywheel I'd jerk them out of the car and beat them over the head with a feather duster anyway.
In all seriousness, I'm tired of messing with it and I don't care what it looks like on the crank. They don't resurface it on the crank. I did the best I could, the guy resurfacing did the best he could and I can't see driving all over the country having it reground until it has the thickness of cigarette paper trying to get it perfect.
If I ever use the 410 again or sell it I'll make sure to get the flywheel sent to another state to get it resurfaced.
Thaks guys, I'm just tired of dealing with it. The flywheel I'm using at .002" TIR at 12" diameter isn't going to kill me and McLeod said if I'd use the 500 miles they recommend driving it instead of racing it as soon as the new clutch is installed, the flywheel wouldn't get eat up to begin with.