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).
Bulletin on axle and fuel pump maintenance procedures for Ford vehicles.
| Identifier | ExFiles\Box 27a\2\ Scan224 | |
| Date | 18th July 1933 guessed | |
| Page 36 FORD BULLETIN felt by alternately pulling and pushing the hub and brake drum assembly along the axle housing. Under no circumstances must the vehicle be run with the bearings adjusted so that there is no end play. If no end play is apparent, slacken off the second adjusting nut and re-adjust the bearings as may be necessary. It is important that the bearing adjustment is tested only after the second adjusting nut has been securely tightened down. After the bearings have been correctly adjusted, lock the two nuts in position by bending over the edges of the locking washer with a punch inserted through the hole Y in the hub shell provided for this purpose; this hole normally being closed by a screwed plug to prevent grit, etc., from entering the bearings. Do not omit to replace this plug after locking the adjusting nuts. The axle shafts should now be inserted into the axle housing, using a new flange gasket, and taking care that the grease retainer K is not pushed out of place with the end of the shaft and damaged. After the shaft has been inserted through the grease retainer, press the shaft farther in and “feel” for the splines in the differential bevel until the shaft engages. The shaft may now be pressed right “ home.” The three tapered split collets should now be placed over the studs that project through the three countersunk holes in the axle shaft flange, followed by a spring lock washer and their securing nuts. Screw these three nuts right home before replacing the remainder of the flange securing nuts. This will allow the axle shafts to be correctly located, and securely held against play between the studs and their holes in the shaft flange under working conditions. After securing the three locating nuts, the remainder of the flange nuts may be replaced with their spring washers and tightened down. After re-assembling, the bearings should be thoroughly lubricated by forcing grease through the lubricating hole at M until the space between the bearings is filled. The axle is now ready for re-assembly to the chassis. FUEL PUMPS Unsatisfactory operation of the fuel pumps fitted to the Ford cars is generally caused by some small misadjustment that may be rectified without removing the pump from the engine. The following are a number of points to be checked before removing the pump from the engine in the event of unsatisfactory operation. Loss of Vacuum Loss of vacuum will permit air to be pumped instead of fuel. This may generally be cured by seeing that the fuel line connections are tight at the fuel tank and at the petrol pump union. Check that there are no air leaks at the pump cover, cover nut, or drain plug. Tightening the cover nut and drain plug will in many cases cure the loss of vacuum in the pump. Clogged Screen Poor petrol supply may be due to a clogged fuel pump screen. Remove the petrol pump cover and clean the screen, observing that the B-9357 and the B-9364 gaskets Fig. 47 are in good condition, and that they are properly seated when re-assembling the petrol pump cover. Failure to take this precaution may result in loss of vacuum as described above. If it is found that the fuel pump screen has become badly distorted, a new screen of the strengthened type as described and illustrated on page 37 should be fitted. Leakage at Edge of Cover Plate Tighten the upper body screws evenly and securely. It should be noted that the presence of fuel at the diaphragm flange does not always indicate leakage at this point. The leak may actually exist under the cover plate, or at the fuel pipe fittings, the fuel running down from these to the diaphragm flange giving the appearance of a leak at that point. It is also advisable to check and make certain that the drain plug is seating properly, and is not allowing leakage at that point. Dismantling the Fuel Pump Fuel leakage at the vent hole is an indication that the diaphragm or the B-9394 gasket is leaking, in which case the fuel pump should be removed from the engine and dismantled. | ||