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).
Engine repair procedures, parts, and clearances for Chassis B-10-GA.
| Identifier | ExFiles\Box 146\3\ scan0256 | |
| Date | 15th December 1936 | |
| -2- Crankcase with reamed bearings. Connecting rods with Standard finish bearings and R.R. 56 shims, these being sent by Hd.{Mr Hayward/Mr Huddy} from repair dept. It would save a lot of confusion if when you require new standard replacement parts to deal with Hd.{Mr Hayward/Mr Huddy} and BP and not the Experimental Dept as we find that we have some instructions, also the repair have other instructions and results in several people doing the same job. Any special parts which are now standard can be dealt with by us. We are very pleased to have all the information, however, with regard to your examinations and measurements, these being extremely useful. Chassis B-10-GA. We shall be pleased to hear the result of the stepped liner fitting in the above car, as a depot sheet has been issued on these lines of operation. We should like a sketch of the special tool which you are making in order to measure to exact amount of sinkage as it looks as though a number of Bentleys will have to have the same treatment. What we are anxious to know if that after treatment the face of the cap, is if the resultant clearance between the crank journal and the bearing approximately correct at .003? The attached chart on your memo. Sr/VA.12/GM.15.12.36. covers the information of stepping completely with the exception of the final bearing clearance. This might be determined by clocking the crank throw immediately behind the rear main bearing if a lever is used on the flywheel through the inspection cover. The oil pressure test following the treatment will no doubt indicate whether a satisfactory job has been made. Rm{William Robotham - Chief Engineer}/L.H.Swindall. | ||