I believe the idea was for the caps to self-align as they were installed, using the bearing shells and the assembly lube to create enough hydraulic force to help the caps center. No, it's not a good design, compared to later machining procedures, but a few million of those engines survived some pretty tough operating conditions.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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