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).
Visit to the Buick Foundry to investigate cylinder porosity and design.
| Identifier | ExFiles\Box 174\2\ img091 | |
| Date | 27th March 1937 | |
| To Messrs. and -Hs.{Lord Ernest Hives - Chair} from E.{Mr Elliott - Chief Engineer} c.c. RMC. Hs{Lord Ernest Hives - Chair}/Ccc. WSC.{W. S. Cassel} Dev. Bv. H.S. Mr. Walker (Pattern Shop) Mr. Meadows (Foundry) L.D.S. DETROIT E.1/HP. 27.3.37. Buick Foundry - Cylinder Porosity. After receiving Hs{Lord Ernest Hives - Chair}' cable re cylinder porosity etc. Hm{Capt. W. Hallam - Head Repairs} and E.{Mr Elliott - Chief Engineer} arranged to drop Royee at Flint to see the Buick Foundry on their way to Saginaw, but as the weather was too bad to proceed beyond Flint, all went to Buick. The following report is an enlargement on the cable sent in reply to Hs.{Lord Ernest Hives - Chair} The R.R. cylinder block should be an easy job compared with the Buick '8' in-line combined cylinder and crankcase, which latter has a parallel piece of core sand 5/32" thick at top, 3/16" at bottom, by about 1-1/8" wide between nearest cylinder barrels, as in sketch. The cylinder barrel thicknesses are 7/32" at top and 9/32" at bottom. The jacket core is 4½" deep overall but is split horizontally at a point 1-1/2" from the top, the lower side of the upper core portion being formed to leave 1/2" x 5/16" ties between the barrels. The addition of these ties cured cylinder bore distortion arising from head bolting strains. The finished bores are held to an ovality not exceeding 1/2 thou. normally and 3/4 thou. occasionally. We watched Buick '8' cyl.block cores being produced, which is done with metal moulds on Tabur moulding machines. The cores are well wired, the wires being supplied already prepared in correct length, shape and | ||