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).
Ford Bulletin page detailing the re-assembly procedure for a fuel pump with an exploded diagram.
| Identifier | ExFiles\Box 27a\2\ Scan227 | |
| Date | 18th July 1933 guessed | |
| Page 38 FORD BULLETIN It is advisable when replacing an original B-9396 diaphragm spring, to add the oil retaining washer and spring, and install a modified type diaphragm spring as when stocks of the original type springs are exhausted only the later modified type will be supplied. Valves and Covers Before installing the valves in the pump upper body, blow out both valve chambers to make certain there are no foreign particles present, and ascertain that no burrs or irregularities exist in the valve seats which would prevent the valves from closing properly. A drop of oil placed on each fibre valve before installing will assist the initial priming of the pump. Assemble the inlet valve spring in the pump upper body, making certain that the bottom coil of the spring rests flat in its seat, then place the fibre valve in position on top of the inlet spring. Retain the valve in place by the inlet valve plug, using a new gasket, and tighten securely. Place the outlet fibre valve into position in the upper body on top of the outlet valve seat, followed by the outlet valve spring, the outlet valve plug, and new plug gasket, making sure that the pilot on the valve plug is correctly centred in the valve spring, then securely tighten the valve plug. Place the strainer screen into position on top of the upper body, making sure that it fits snugly around the petrol inlet and the edge of the upper body. The screen should be flat and not buckled at any point. Next, assemble the cork gasket in the pump cover plate, and install on the pump body making certain that the gasket seats properly and the strainer screen is not wrinkled or distorted. Replace small gasket and cover plate nut, and tighten securely. Place drain valve spring and insert valve in its opening in the side of the pump. [Exploded Diagram of a Fuel Pump] 34179-S7 Cover Nut B-9357 Gasket B-9355 Cover B-9364 Cover Gasket B-9365 Screen B-9362 Valve Chamber Plug B-9361 Inlet Valve Seat B-9363 Gaskets B-9360 Spring B-9358 Valve B-9353 Upper Body Four cylinder. Use 18-9353 on V-8 B-9182 Drain plug Spring Use B-9366 Screw and 34003-S Washer B.9185-AR Plug (use B.9185-B plug only on pumps having 'E' hole at 'A') FIG. 47. Procedure of Re-Assembling As a number of repair operations require either complete, or almost complete dismantling of the fuel pump, it is imperative that the operator follow a systematic procedure and order of assembly in order to economise in time, and to make certain that the pump will function properly when re-assembled. Unless these instructions are followed, there is no assurance that the pump will operate properly when re-assembled to the engine. Fig. 47 illustrates all the component parts of the upper body of the fuel pump fitted to the B and BF engines in their relative positions for assembly. The V-8 fuel pump uses the 18-9353 upper body assembly. Apart from this the parts shown in Fig. 47 apply equally to either the B type or the V-8 type fuel pumps. Assembling the Diaphragm Mount the pull rod, Fig. 49, in a bench vice, engaging the flattened end of the rod between the jaws of the vice. Place the pull rod gasket over the threaded end of the rod followed by the diaphragm protector lower washer with the dished edge facing downwards. Place four layers of diaphragm cloth over the threaded end of the pull rod, and line up the tabs on the circumference of the diaphragm with the centre line of the flats on the rod as shown in Fig. 48. The diaphragm upper protector should now be assembled on top of the four layers of diaphragm cloth with its dished edge facing upwards, that is, away from the diaphragm, followed by the alignment washer, spring washer and securing nut. | ||