Necessary special tools and equipment
- Mot. 1199-01 Exhaust pipe cutting tool.
- Mot. 1265, Mot. 1265-01 Pliers for removing quick couplings.
- Pneumatic pump for pumping INTAIRCO fuel.
Fuel drain
Due to the lack of an electric fuel pump on vehicles with a diesel engine, an external pump must be used to drain the fuel from the tank.
For example, use an INTAIRCO air pump.
1. Remove the steel plug that blocks access to the assembly «fuel level sensor pump».
2. Remove the connection lock (if it exists).
3. Disconnect quick coupling 1 using pliers Mot. 1265.
4. Connect the pump's rubber hose to outlet port A.
5. Drain fuel from tank.
Removal and installation
See 2.19. Fuel tank of the D7F engine.
1 - Fuel tank;
2 - Bolt;
3 - Filler neck;
4 - Expanding part of the filler neck;
5 - Rivet;
6 - Clamp for fastening the coupling;
7 - Cork;
8 - Fuel supply pipeline;
9 - Fuel return pipeline;
10 - Spring retainer,
13 - Clamp;
21 - Spring retainer;
22 - Damping plate;
24 - Outlet part of the neck - part for the passage of fuel;
25 - Part for the release of air when filling fuel;
29 - Valve that protects against the creation of high pressure and vacuum;
A - Quick coupling;
C - Quick coupling;
D - Branch pipe without spring clips;
E - Air outlet for refueling;
F - Hollow part for fuel expansion;
R - Opening for pouring fuel;
V - The minimum allowable amount of fuel.
The connection of the fuel tank with the atmosphere is provided through a channel in the upper part of the fuel intake united with a fuel level sensor.
Valve functions
29. Valve that protects against the creation of high pressure and vacuum.
In the event of a blockage in the fuel vapor recovery circuit, this valve prevents overpressure in the tank (which can cause the tank to bulge) or rarefaction (when fuel is consumed, as a result of which the tank may compress).
On vehicles with a diesel engine, there is no submersible fuel pump, there is only a fuel level sensor.
Table 4.11
Make sure the resistance changes as the float moves.
Note. All values are for reference only.