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 printable version
Removal and installation / check of the fuel pump
Carburetor engine The fuel pump is screwed to the cylinder head. It is operated via a lever directly on the camshaft. To check the pump is not required to remove it.  | When removing the fuel pump may make a certain amount of fuel. Fuel vapors are poisonous, so you should ensure good ventilation. Avoid getting fuel on the skin. Work in fuel-proof gloves. Do not work near open flames! Keep a fire extinguisher at the ready! |
Check |  | - Disconnect the fuel hose on the carburettor and connect the manometer.
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- Disconnect the fuel return hose from the pump and plug the nozzle on the pump cap. Secure the plug collar. Plug the fuel return line bolt clean.
- Ask an assistant to start the engine. If the number of revolutions of the starter to take readings of the pressure gauge. Pressure at the speed of a starter should be 2.8-3.5 bar (E1, EZ, E5: 2.0-3.0 bar).
 | - Remove the pressure gauge and lower the fuel hose into the measuring vessel (beaker).
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- Ask an assistant to start the engine. Pump idling must deliver 800 ml of fuel per minute.
- Remove the plug to connect fuel lines and secure the clamps.
- If the values do not match with the check required, the pump is faulty and must be replaced.
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Withdrawal |  | - Loosen hose clips and disconnect fuel hoses -1- and -2-. Plug the hoses suitable clean bolts. Mark hose with adhesive tape.
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| When disconnecting the fuel put a rag to collect leaking fuel. |
- Unscrew the screws and remove the fuel pump -3-, pads and insulator.
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Setting | - Carefully loosen the sealing surface of the cylinder head and the insulator from the remains of seals using the scraper.
- Install the fuel pump 2 new seals and insulator and tighten bolts to 25 Nm of torque.
- Connect the fuel according to the labeling and secure with hose clips.
- Start the engine and check the tightness of the fuel pump and connections.
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