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).
Blueprint detailing a rattling issue with the exhaust tail pipe mountings and the proposed solution.
| Identifier | ExFiles\Box 130\2\ scan0013 | |
| Date | 1st July 1919 | |
| 30 HP CAR EXHAUST SYSTEM. GUL. 19. TROUBLE. MUCH TROUBLE HAS OCCURRED IN THE TAIL PIPE MOUNTINGS - RATTLING BADLY. IT WAS FOUND THAT THERE IS TOO MUCH UP AND DOWN MOVEMENT IN THE SLEEVES A AND B AND THAT THE SPRING IS NOT STRONG ENOUGH. ALSO, THE CLEARANCE BETWEEN THE TWO SLEEVES IS .050". CURE. HAVE BETTER FITTING SLEEVES - SAY, .010" TO .015" CLEARANCE REDUCE THE UP AND DOWN MOVEMENT TO ABOUT .020 INSTEAD OF .375". INCREASE THE SPRING POUNDAGE 50% AND SEE THAT THE SLEEVE A DOES NOT HIT FACE C WHEN SPRING IS CHOC-A-BLOC. N.B. THIS TROUBLE IS OCCURRING ON BOTH THE 30 HP AND MANY OLD 20/25 H.P. K.F. SCHOLES. Diagram Labels: N.B. UP AND DOWN MOVEMENT .375". EXHAUST TAIL PIPE REAR OF CAR. SPRING A CLEARANCE .050" B C .375 | ||