1948 Pontiac Hydramatic needs a spacer so I can install non-original seals between the transmission output shaft housing and the drive line.
Spacer: Outside diameter 2.017" +0, -0.05: Inside diameter 1.500"
+0.05, -0: Width approximately 3/8".
How best to make this on a lathe. Material would be a 3" square of aluminium about 3/4" thick. Have 3 jaw and 4 jaw chucks available. Mind you, this is simply a spacer. It will not rotate or have anything moving against it. I suppose I could buy a bunch of large washers, bore them, place on an arbor and reduce the diameter and then stack them up until I reach approximately 3/8".
Any advice, especially lathe procedures would be greatly appreciated.
Thank you,
Ivan Vegvary
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Do you have a faceplate? If so it's a simple job if you mount plywood on it, true the face flat and attach your blank with screws through the waste area to rough it and then finger clamps inside or outside to finish. The wood lets you cut across the full thickness of the ring and the finger clamps don't distort it. Cut the 3/8" dimension before you break down the roughing setup.
The piece is small enough that you could improvise a faceplate from a chucked pipe nipple and flange, preferably the largest that fits your chuck's center hole for more rigidity and less chatter. It wouldn't hurt to pin the threaded joint or lock it with a conduit nut.
I remove central cores like this in brass or aluminum with a hole saw after loosening the leather drive belt. Steel is too demanding for my MT2 tailstock.
-jsw