Here is a picture of one of these reservoirs still on the MC. Some are held on with hex bolts, some with male torx headed bolts, both approximately 5/16-18 thread.
http://rides.webshots.com/photo/2598576140080251109wpZrNY

Grigg


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-