Fuel Pump Installation; Integration Into The Fuel System - Webasto Thermo Top C Installation Instructions Manual

Thermo Top C
Metering Pump DP30 (Diesel)
Metering Pump DP2 (Gasoline)
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Fig. 29
Fig. 30
Fig. 31
2
Fig. 32
ATTENTION
•Ensure the fuel lines are fully seated within the fuel line
couplers and any 90 degree bends are not buckled. Refer
to Figure 29.
•Tighten all fuel line clamps to 1.0 - 1.4 Nm (8.8 - 12.4
lb.-in.)
•Always cut Mecanyl fuel line with a sharp razor knife or
razor edged cutter. Using side cutters, scissors or similar
tools will cause a restriction inside the fuel line.

4.4 Fuel Pump Installation

The fuel metering pump is a combined fuel supply,
metering, and shutoff system and is subject to certain
installation criteria (See Figures 30 and 31).
Prior to installing the metering pump ensure the
maximum pressure prevailing at the fuel extraction point
is below 0.2 bar.
Install the fuel metering pump in accordance with Figures
29 or 30.
ATTENTION
The outlet side of the metering pump is located on the
same end as the electrical connector.
It is recommended that the metering pump be installed in
a location on the vehicle that stays reasonably cool,
excessive heat may cause the pump to vapor lock.
The metering pump should be mounted to the vehicle by
a sound and vibration-damping suspension (rubber
mount provided in kit).

4.5 Integration into the Fuel System

4.5.1 Typical Standpipe Installation (example
only)
ATTENTION
Figure 32 shows a fuel sender accessible from inside
the vehicle.
Remove the fuel sender from the vehicle following the
manufactures service instructions.
– (1) Under rear seat
– (2) Fuel sender
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