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).
Recommendations to resolve a customer's overheating issue by adjusting the fan and fan belt.
| Identifier | ExFiles\Box 24\5\ Scan254 | |
| Date | 1st July 1930 | |
| c lo By.{R.W. Bailey - Chief Engineer} X766 Hm.{Capt. W. Hallam - Head Repairs} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} HS{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}3/MJ.1.7.30. With reference to Whr{Mr Wheeler}2/D27.6.30. attached. As this man used his car in Switzerland it is clear that his overheating takes place when climbing at reasonable car forward speeds. Under these conditions the item of the cooling system which will make the greatest difference is his fan. by hand We recommend that the fan belt should be tightened up choc-a-bloc (i.e. the present spring tension does not give 100% results in extreme cases). We shall probably be able to recommend a new type of fan belt in the course of the next two or three days, which will stand up better than the present Wittle belt under the increased tension. We know that moving the fan nearer the radiator gives better cooling. We have actually run a 10,000 miles test with the fan within 1/2" of the radiator matrix, and the improvement in cooling was quite noticeable, the disadvantage being a suction roar at high speeds. We consider that in this case, where we have done everything else we know of, and the customer persists in his over-heating complaint, that it would be worth giving him a distance piece to allow him to move his fan forward. We are asking the D.O. to issue the necessary instructions. We hope to have some more information on the | ||