Rear Cylinder Cover 3

rearcylindercover3.jpg

23-Dec-2005

These pictures are on machining the rear Cyclinder Head Cover. I choose to alter the design of the packing glands. I threaded both the Valve Guide and the Cyclinder Head Cover. The Valve Guide was tapped 5/8-24, and the Cyclinder Head Cover was tapped 3/4-24. Gordon had these not-so-standard taps. However he only had a 3/4-24 bottoming tap, so I treaded about 3/4 of the bore using the lathe (the first picture), and then used the tap to complete the lathe threads and finish the threads to the bottom of the bore.

The packing glands will be threaded on the lathe to match.

The copper jaw protectors are taped on in such a way as to be usefull when the driving boxes are bored.

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