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).
Letter from Leyland Motors regarding the painting procedures for crankcases, sumps, and cylinder blocks.
| Identifier | ExFiles\Box 140\3\ scan0199 | |
| Date | 16th July 1938 | |
| LEYLAND MOTORS LIMITED. Head Office and Works, LEYLAND. LANCASHIRE. Manufacturers of Motor Vehicles. ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY AND NOT TO INDIVIDUALS CUSTOMERS VEHICLES DRIVEN AT OWNERS RISK ONLY TELEGRAPHIC ADDRESS: LEYMOTORS, LEYLAND. TELEPHONE: LEYLAND 81400 (16 LINES) Tel. Ext. 135. YOURS Rm{William Robotham - Chief Engineer}/SWd/18 M.H. IN REPLY PLEASE QUOTE: NT/AM. OURS 16th July, 1938. Messrs. Rolls-Royce Limited, COVENTRY. Dear Sirs, We are now able to supplement the information which we gave you in our letter of the 30th June on the subject of painting of the insides of crankcases and cylinder blocks, and we confirm that your interpretation of the procedure we adopt, as given in your letter of the 5th inst., is quite correct. Our aluminium crankcases and sumps are not manufactured in the same department as the cast iron crankcases, and at the present time we have no plant available for spraying the former parts. This is the only reason why we have resorted to hand painting and we see no reason why the aluminium cases should not be sprayed with Sellonite filler. The object of painting our sumps with grey primer is to prevent any slight tendency of porosity. As the interior of our crankcases are only subject to oil splash it is very doubtful whether any painting is necessary. We do not paint them at the present time but if paint were ever found to be desirable then we should probably adopt the spray method using Sellonite filler. We regret that we have no figures available with regard to the cost of hand painting but we find that the average time taken to spray a combined cast iron cylinder block and crankcase with Sellonite filler is approximately one half hour and the amount of filler used is about one half pint and not one pint as stated in our previous letter. - cont - | ||