The gravity valve is not available as a separate spare part.
The valve is removed through the top of the filler neck.
Check the valve as follows. When the valve is placed in a vertical position, it is open, and when tilted by 45°, it closes.
When removing the expansion tank, slide the connecting pipe along the fuel filler pipe.
Pic. 5.1–1. Fuel expansion tank: 1 - connection with «weight»; 2 - fuel pipe from the fuel tank; 3 - fuel pipe from the fuel tank; 4 - fuel pipe from the fuel tank with white markings; 5 - fuel pipe from the gravity valve; 6 - fuel pipe from the expansion tank to the gravity valve; 7 - gravity valve; 8 - sealing ring; 9 - fuel expansion tank; 10 - rubber cap; 11 - filler cap; 12 - gasket; 13 – a lock ring of a rubber cover of a mouth; 14 - bolt, 10 Nm; 15 - drain hose; 16 - connecting pipe; 17 - fuel filling pipe
Pic. 5.1–2. Compound «mass» wires (1) with metal ring (2) on the fuel tank filler pipe
When installing the fuel expansion tank, check that the lug of the wire connection to «weight» 1 (pic. 5.1–2) was securely connected to the metal ring on the fuel tank filler pipe.
After installing the fuel expansion tank, check with an ohmmeter that there is no resistance between the metal ring on the fuel tank filler pipe and «weight» body.
Otherwise, check that the connection wire with «weight» has been securely connected to the negative battery terminal
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