From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Dimensions for an American straight-eight crankshaft, specifically a Pontiac model.
| Identifier | ExFiles\Box 22\4\ Scan020 | |
| Date | 8th October 1934 | |
| X6708 E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/MA.8.10.34. AMERICAN STRAIGHT-EIGHT CRANKSHAFT. Here is a blueprint of the Pontiac crankshaft. I should not take this as being a particularly good sample. A more up-to-date engine is the one fitted to the LaSalle the dimensions of which are as follows :- Main Journals. Diameter. Length. Front 2.250 1.625 Front Inter. 2.437 1.250 Centre 2.500 1.375 Rear 2.562 1.250 Rear 2.625 1.562 Crank pins 2.250 1.375 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||