Roundup 30 Photos by Mark Rock
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Mark is learning to run a lathe, and is making a drift to remove the oil dipstick tube from our blocks without damage.
IMG_0836		 Mark is learning to run a lathe, and is making a drift to remove the oil dipstick tube from our blocks without damage.
IMG_0837		 Mark is drilling out a bar of aluminum so that a recess can be machined into the end, in order to make an adapter for Roy so that he can mount a Cosworth wheel to a spacer bolted to his turntable on his Bridgeport mill. This will allow him to do certain machining operations on Cosworth wheels.
IMG_0840		 Another photo of Mark drilling out aluminum bar stock.
IMG_0841		 With the ID and the OD of the adapter machined, it is time to cut it off the bar stock--with a powered hacksaw. It took about 15 minutes to cut through. Wow.
IMG_0842		 Here is a turntable bolted to a Bridgeport. The blue item is an adapter for a wheel. The plywood is to protect the adapter when drilling through the wheel bolt holes. The adapter mark made fits over the round "nut" on the threaded spindle and locates the wheel hub accurately, centered on the spindle.
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This 1975 Cosworth wheel came off Mark's 1976 Cosworth. He is dinged for this in the Concours every year (wrong wheel, wrong lugnuts). Time to rectify the situation.
IMG_0844		 Roy positions Mark's wheel so that the drill bit is centered in the lugnut hole in the wheel.
IMG_0845		 Another picture of the process of centering the drill bit in the existing lugnut hole in the wheel.
IMG_0846		 The hole for the lugnut flange is larger on a 1976 wheel. Time to mill the hole larger.
IMG_0847		 The hole has now been milled to accept the 1976 lugnut design.
IMG_0848		 One view from Roy's front porch.
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Another view from Roy's front porch. Soon the corn will be so tall that the only thing visible on this portion of the skyline will be the sky.
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