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).
Manufacturing tolerances and parts for the Phantom II radiator suspension with diamond engine mounting.
| Identifier | ExFiles\Box 14\5\ Scan246 | |
| Date | 7th November 1931 | |
| Copy 87005. By - from Sft.{Mr Swift} Hs.{Lord Ernest Hives - Chair} By/SS.{S. Smith} Mr.Scott. Sft.{Mr Swift}4/B.7.11.31. X7250 X7005 PHANTOM II RADIATOR SUSPENSION WITH DIAMOND MOUNTING FOR ENGINE. BY/SS{S. Smith}9/N.2.11.31., and Hs{Lord Ernest Hives - Chair}/Les.4/KT.22.10.31. With regard to the soft rubbers E.80612 we hope these have been instructed and that supplies are available, otherwise the output of chassis will be delayed. Further, we have not yet received any particulars of loading which we are told will be supplied by the Experimental Department. Regarding the clearance mentioned of .187" we agree that at the moment we cannot get anything like this clearance, and if it is agreed that the introduction of the diamond engine mounting does need this extra clearance, will the D.O. kindly let us have immediate instructions. Presumable the points raised in these two memos are only suggestions for the time being. We note that it is necessary to add a note to the drawing that the crossmember must be perfectly flat. We agree that it is very necessary this should be most accurately stretched, and we have been doing this for many months; in fact there is a definite bonus time to cover this work. With regard to the fitting of the adjusting washer E.81619, which washer by the way is unknown to us, that is to say is not yet instructed, it is pointed out that this must not be less than .125" in thickness. We must in this connection point out that in our efforts to obtain interchangeable bonnets, the only point we can observe for the moment is the height of the radiator and the dashboard from the engine suspension line. So we cannot agree to work to the .125" washer, unless it can be fitted consistently in maintaining the height of the radiator. We agree with all the points in regard to the studs etc. but I would like to know what we are to do with the studs already made. It has always been our practice to fix the radiator crossmember as low as possible inorder to insert the thickest possible packing at the central pivot. | ||