Eberspächer B1L Installation Instructions Manual - page 9
Fuel supply
The instructions given here should not be disregarded as deviations may cause malfunctions. 1. Fuel intake from fuel
line to engine (usually in passenger cars):
Precondition: the fuel line from the fuel tank to the engine must be tight, so that the flow of fuel is not interrupted when the engine
is not running.
Dimension a =
max.
2000 mm for gasoline
max.
5000 mm for diesel oil
Dimension b =
50 mm
Dimension c =
max.
300 mm
Dimension d =
max.
4 m for gasoline
max.
6 m for diesel oil
At all joints, fuel pipe (7) and connection pieces must touch.
2. Fuel intake separately from fuel tank or separate tank
(usually in trucks, construction machinery, agricultural machinery)
A = intake from above
B = lateral intake at tank
C = lateral intake or beneath it; metering pump below lowest fuel level
9
1 Tank
2 Fuel branch
3 Fuel tube, internal dia. 5 mm
4 Fuel pre-filter (vertical, up to 30o downward if fuelline
is tapped)
Cat. No. 25 1226 89 00 37, only necessary if fuel is
contaminated
5 Fuel metering pump (150 to vertical, inclined upward)
6 Fuel tube, internal dia. 3.5 mm
7 Fuel pipe, plastic, internal dia. 1.5 mm
8 Tank connection, internal dia. 2 mm
9 Tube or plastic pipe (max. internal dia. 5 mm)
10 Fuel pipe, plastic, internal dia. 2 mm
Dimension a =
max. 2000 mm with gasoline
max.5000 mm with diesel oil
Dimension f =
max. 500 mm with gasoline
max. 1000 mm with diesel oil
Dimension d =
max.
4 m with gasoline
max.
6 m with diesel oil
With connection types A and B, the intake line - A
includes tank connection (8) - including all connection
points must have an internal dia. of 2 mm; for this
reason, fuel pipe (10) and connections must touch
each other at every joint.