Webasto thermo top evo User manual

Installation Instructions
Thermo Top Evo
English
- ALWAYS carefully follow Webasto installation and repair instructions and heed all
WARNINGS.
- Improper installation or repair of Webasto heating and cooling systems can cause fire or
the leakage of deadly carbon monoxide leading to serious injury or death.
- Only genuine Webasto parts may be used. See also Webasto air and water heaters ac-
cessories catalogue.
- Product produces temperatures high enough to ignite surrounding combustible materials
such as inflammable liquids, gases, vapor, and other combustible matter. The heater
must be switched off when loading or unloading flammable materials to prevent the risk
of explosion.
- Webasto heating and cooling systems require qualified and/or professional installation
and repair technicians. Warranty shall be void if not installed by a certified or trained in-
staller/repair technician who has successfully completed the factory training course for
installation and repair of Webasto heating and cooling systems, and has been provided
with the technical information, tools and equipment required to properly complete the
necessary installation/repairs.
- When heater is in use, the surface of the hot air outlet may become hot to the touch.
Contact with skin may cause burns.

Table of Contents
1. Safety
1.1 Intended use...........................................................3
1.2 QualificationsofInstallation Personnel .................3
1.3 Safety During Operation........................................3
1.4 Avoiding Damage toProperty ...............................3
1.5 General Safety Information ...................................4
2. About this document ......................................................5
2.1 Purpose of this Document ......................................5
2.2 Warranty and Liability .............................................5
2.3 Using This Document..............................................5
3 Regulations For Installing In Vehicle..............................6
3.1 Scope ........................................................................6
3.2 Position of the Heater..............................................6
3.3 Fuel Supply ..............................................................6
3.4 Exhaust Syustem..................................................... 7
3.5 Combustion Air Inlet................................................7
3.6 Water Inlet ................................................................7
3.7 Hot Water Outlet.......................................................7
4 Technical Data.................................................................9
4.1 Technical Data - Thermo Top Evo ..........................9
4.2 Technical Data - Circulation Pump.........................9
4.3 Technical Data - Enclosure Box .............................. 10
4.4 Technical Data -Mounting Plate ............................10
5 Purpose and Vision .......................................................11
5.1 PurposeoftheCoolant Heater................................11
5.2 Version Thermo TopEVO ...................................... 11
6 Installation Example....................................................... 11
6.1 Safety Information................................................. 11
6.2 InstallationLocationand Position..........................11
6.3 Heater Components ..............................................12
6.4 Mounting the Heater to the Vehicle ...................... 13
7 Coolant System ..............................................................15
7.1 System Connections .............................................15
7.2 Heater Connections...............................................15
7.3 CoolantSystemConnections .................................16
7.4 Circulation Pump Installation ................................. 17
7.5 InspectingtheCoolant System ...............................17
8Fuel Supply..................................................................... 18
8.1 ExtractingFuelfroma Fuel Tank ............................ 18
8.2 Fuel Standpipe Installation ................................... 18
8.3 Fuel system overview ........................................... 21
8.4 Fuel Lines............................................................... 22
8.5 Fuel Filter ................................................................ 23
8.6 Fuel Metering Pump .............................................. 23
9 Combustion Air System................................................. 24
9.1 General................................................................... 24
9.2 Combustion Air Silencer ......................................... 24
10 Exhaust System.............................................................. 25
11 ElectricalConnections ................................................... 27
11.1 Battery Connections ............................................. 27
11.2 Switch andTimer Connections.............................. 27
12 Wiring Diagrams ............................................................ 31
12.1 Thermo Top Evo with On/Off switch................... 31
12.2 Thermo Top EVO with SmarTemp 2.0................ 32
12.3 Thermo Top Evo with SmarTemp 3.0.................. 33
12.4 Thermo Top EVO with Enclosure Box ................ 34
12.5 Tandem 717 with SmarTemp............................... 35
12.6 Wiring Diagram Legend........................................ 36
13 Initial Operation .............................................................37
13.1 Initial Operation Information .............................. 37
13.2 Initial Start-UpChecklist ..................................... 37
13.3 Checking Initial Operation ................................. 40
13.4 Operating the Heater ........................................... 40
14 Basic Troubleshoting .................................................... 41
14.1 General Information............................................. 41
14.2 General Failure Symptoms ................................ 42
14.3 PC Diagnostic Kit................................................43
14.4 Diagnostic Fault Codes ...................................... 44
14.5 HeaterLockoutReset Procedure.......................... 45

3
1 | Safety
1 Safety
1.1 Intended use
If installed in special-purpose vehicles, the
applicable regulations must be observed. Consult
with Webasto for alternative application options.
Meets FMCSA Motor Vehicle Requirements when
installed in accordance with 49 CFR 393.77. For
more information visit
https://www.govinfo.gov/content/pkg/
CFR-2012-title49-vol5/pdf/CFR-2012-title49-
vol5- sec393-
77.pdf?_sm_byp=iVVH7mFk84lJpmmN.
Parking heater
The heater works independently of the vehicle’s
engine and is integrated into the coolant system, the
fuel system, and the electrical systems of the
vehicle.
Auxiliary heater
Operation of the heater depends on the vehicle’s
engine and is integrated into the coolant system, the
fuel system, and the electrical systems of the
vehicle. When the engine is switched off, the heater
is automatically switched off and the fuel supply is
interrupted.
1.2 QualificationsofInstallation
Personnel
The installation personnel must have the following
qualifications:
The repair, installation, and/or commissioning of
the unit may only be carried by trained experts in
accordance with the workshop manual and the
installation instructions.
The year of initial start-up must be permanently
marked on the type label by removing the
inapplicable year(s).
1.3 Safety During Operation
WARNING
Danger of explosion
In environments with combustible vapors,
flammable dust and hazardous goods
(such as fuel stations, tank facilities, fuel
store, coal bunkers, timber yard or grain
ware- houses). Do not switch on or
operate the heater.
WARNING
Do not operate the heater in an enclosed
space, or one that does not have an
exhaust extraction unit. Poisoning or
suffocation can result.
1.4 Avoiding Damage to
Property
NOTE
Improper Handling
Protect the heater against mechanical
stress (e.g. dropping, impacts). Do not
place any objects on the heater or stand
on the heater.
Avoid shutting down the heater
incorrectly during the cool-down period.
After switching off using the control
element, the fan of the heater will
continue to for a short time. The heater
must always be shut off using the control
element except the in the case of an
emergency. Do not disconnect the heater
from the power supply until after the
cool-down cycle is complete, including the
cool-down period.
Use edge protection on the edges of metal
panels that can come into contact with the
wiring harness. Failure to do so can cause
a short-circuit and fire.

4
1 | Safety
1.5 General Safety Information
Webasto Thermo & Comfort North America, Inc.
is pleased to provide this installation manual.
When used according to the guidelines stated in
this manual, you can expect to provide years of
trouble- free, enjoyable operation to your
customer.
This manual represents our latest effort to
produce the best technical documentation
possible. In our efforts towards continuous,
ongoing product improvement, we encourage
our customers to write to us with their
comments or criticisms concerning this manual
and the heater installation in general.
Please write to us at:
Webasto Thermo & Comfort North America, Inc.
Technical Documentation Group
15083 North Road
Fenton, MI 48430
You are also invited to fill out our online
questionnaire concerning our technical
documentation and web site at:
www.techwebasto.com
If you have any immediate questions concerning
this manual, the installation procedures within
or the product itself, please contact us:
Phone: [phone]
Fax us at:[phone]

5
2 | About ThisDocument
2 About This Document
2.1 Purpose of this Document
These installation instructions are an integral
part of the product and contain all the
information required to ensure correct and safe
installation.
2.2 Warranty and Liability
Webasto shall not assume liability for defects
or damage resulting from the failure to observe
the installation and operating instructions and
the information provided therein.
This liability exclusion particularly applies to:
Installation by untrained personnel
Improper use
Repairs not carried out by a Webasto service
workshop
Use of non-original spare parts
Conversion of the heater without
permission from Webasto
2.3 Using This Document
Read and understand these Installation
Instructions before installing the heater.
WARNING
Indicates a potentially hazardous
situation which, if not avoided, COULD
result in death or serious injury.
CAUTION
Indicates a potentially hazardous
situation which, if not avoided, MAY
result in minor or moderate injury or
property damage. It may also be used to
alert against unsafe practices.
NOTE
This signal word is used to highlight
operating instructions or procedures
which, if not followed or followed
correctly, may cause damage to this
product or the vehicle/vessel it is installed
in.

3 | Regulations For Installing In Vehicle
6
3 Regulations for Installing in Vehicle
Read this installation manual in its entirety before
in- stalling this equipment.
3.1 Scope
3.1.1 Subject to the provisions of paragraph
3.1.2, internal combustion heaters must
be installed in accordance with the
requirements contained in this Annex.
3.1.2 In the case of class-O trailers with heaters
for liquid fuel, it is presumed that these
vehicles comply with the requirements in
this Annex.
3.2 Position of the Heater
NOTE
Improper Handling
Protect the heater against mechanical
stress (e.g. dropping, impacts, or knocks).
Do not place any objects on top of the
heater.
Do not stand on the heater.
Avoid shutting the heater down incorrectly
during the after-running period or while
the heater is running.
The heater fan will continue to run for
up to several minutes after being shut
off.
Always switch the heater off using the
control element.
Do not disconnect from the power supply
until the after-running period has elapsed.
Only switch the heater off using the
battery disconnect in the case of danger or
emergency.
Cables damaged from sharp edges can
cause short-circuits.
3.2.1 Parts of the vehicle body and other
components in the immediate vicinity of
the heater must be protected against
excessive heat and the danger of
contamination by fuel or oil.
3.2.2 The internal combustion heater must not
pose a fire hazard even when overheated.
This requirement is deemed to have been
met if care is taken during installation to
ensure an adequate distance from all
parts, as well as adequate ventilation and
if fire-resistant materials or heat shields
are used.
3.2.3 The model/ Serial plate or a duplicate
thereof (duplicate model/ Serial plate) must
be fitted in such a way that it is still clearly
legible when the heater has been installed
in the vehicle.
3.2.4 When positioning the heater, all
reasonable precautions must be taken to
minimize the risk of personal injury or
damage to items in the vehicle.
3.2.5 A clearly visible indicator within the user's
field of vision must show when the heater
is switched on or off.
3.3 Fuel Supply
WARNING
Do not operate the heater in
environments with combustible vapors,
flammable dust and hazardous goods
(such as gas stations, tank facilities, fuel
store, coal bunkers, timber yard, or grain
warehouses).

7
3 | Regulations For Installing In Vehicle
3.3.1 The fuel filler neck must not be located in
the passenger compartment and must
have a tightly fitting cap to prevent any
fuel leaks.
3.3.2 The type of fuel and the fuel filler neck
must be clearly identified on heaters for
liquid fuel, for which the fuel supply is
separate from the fuel supply for the
vehicle.
3.3.3 A sign must be affixed to the fuel filler
neck warning that the heater must be
switched off before refuelling. An
identical warning must also be included
in the manufacturer's operating
instructions.
3.4 Exhaust System
WARNING
Do not operate the heater in an enclosed
space, or one that does not have an ex-
haust extraction unit. Poisoning or
suffocation can result.
3.4.1 The exhaust outlet must be positioned in
such a way that exhaust fumes cannot get
into the interior of the vehicle through
ventilation devices, hot-air inlets or open
windows.
3.5 Combustion Air Inlet
3.5.1 The air for the combustion chamber of
the heater must not be extracted from
the passenger cabin of the vehicle.
3.5.2 The air inlet must be positioned in
such a way that it cannot be
obstructed by other objects.
3.6 Water Inlet
3.6.1 The supply of water to be heated must
be protected against freezing with a
suitable antifreeze additive to the
required strength as directed by the
manufacturer. The supply of water to be
heated must be uncontaminated by
corrosive compounds and other
impurities.
3.6.2 The inlet hose must be protected
from damage.
3.7 Hot Water Outlet
NOTE
Failure to follow the installation instructions
and the notes contained therein will lead
to all liability being refused by Webasto.
The same applies if repairs are carried out
incorrectly or with the use of parts other
than genuine Webasto service parts. This
will result in the invalidation of the type
approval for the heater and therefore of
its homologation / type licence.

3 | Regulations For Installing In Vehicle
8
3.7.1 Hot water hoses within the vehicle
must be positioned or protected in such
a way as to exclude all risk of injury or
damage caused by direct contact.
3.7.2 The water outlet hose must be
protected so that it cannot be
obstructed by other objects or the flow
of water through the hoses.

9
4 | Technical Data
4 Technical Data
4.1 Technical Data - Thermo Top Evo
Heater Thermo Top EVO
ECE approval symbol
E1 122R -00 0334 (Heater)
E1 10R -03 6271 (EMC)
Model
Water heater with evaporator-type burner
Heat flow (control range)
2.5 to 5 kW
Fuel
Diesel | Bio-Diesel up to 20%
Fuel consumption ± 10 % (control range)
0.8 to 0.13 gal/h (0.31 to 0.49 l/h)
Rated voltage
12V
Operating voltage range
9.6 to 15 V
Nominal power consumption without circulation pump,
without vehicle fan ± 10% (control range)
12 to 21 W
Perm. ambient temp.:
Heater: - Operation
-40 to 176º F (-40 to +80 °C)
- Storage
-40 to 248º F (-40 to +120 °C)
Metering pump: - Operation
-40 °F to 86 °F (-40 to +30 °C)
- Storage
-40 °F to 194 °F (-40 to +90 °C)
Perm. operating pressure (heat medium)
36.25 PSI (2.5 bar)
Minimum quantity of coolant circuit
1.06 gal (4 l)
Minimum flow rate for the heater
66 gal/h (250 l/h)
CO2 in exhaust gas (perm. function range)
8 to 12 vol.%
Dimensions of heater
(Tolerance ± 3 mm)
L = Length: 8.6” (218 mm)
B = Width: 3.6: (91mm)
H = Height: 5.8” (147mm)
Weight
4.8lb. (2.2 kg)
4.2 Technical Data - Circulation Pump
Circulation Pump U4847 Econ
Volume flow with counter-pressure > 14 kPa
Approx. 450 l/h
Rated Voltage
12V
Operating Voltage Range
10.5 to 17V
Rated Power Consumption
≤ 18W
Dimensions, Circulation Pump
Max. length: 109mm Diameter: 48.5mm
Coolant Hose connection 18 mm ID

10
4 | Technical Data
4.3 Technical Data -
Enclosure
Box
NOTE
Drawing not to scale.
Fig. 1: Enclosure Box Dimensions
4.4 Technical Data -
Mounting Plate
NOTE
Drawing not to scale.
Fig. 2: Mounting Plate front view

11
5 | Purpose and Version
5 Purpose and Version
5.1 Purpose of the Coolant
Heater
Webasto coolant heaters are used in connection
with the vehicle’s own heating system
to heat the cab
to defrost vehicle windows
to preheat water-cooled engines
to heat boats and motorhomes (recreational
vehicles)
The water heater operates independently of the en-
gine and is connected to the cooling system, the fuel
system and the electrical systems of the vehicle.
5.2 Version Thermo Top EVO
Thermo Top EVO D
Water heater utilizing diesel fuel.
6 Installation Example
6.1 Safety Information
NOTE
The water heater must be installed outside
the passenger cabin.
The requirements of the latest version of
Hazmat regulations must also be observed
for the installation of the heater into
vehicles used to transport hazardous sub-
stances
6.2 Installation Location and
Position
NOTE
If the vehicle manufacturer has issued spe-
cific installation instructions, they must be
followed.
The heater must be installed in as low a position as
possible to allow the heater and circulating pump to
be bled automatically. This is particularly important
as the circulating pump is not self-priming.
The installation must be performed in accordance
with the installation instructions provided in this
manual.
6.2.1 Model plate
The heater model plate must be positioned so that it
cannot be damaged and must be clearly legible when
the heater is installed (otherwise a duplicate model
plate must be used). Inapplicable years must be
removed from the model plate.
6.2.2 CE Mark
The Thermo Top Evo water heater carries the CE
mark since it complies with the regulations in force.
The heater satisfies the requirements of class A. As a
result, the following supplement applies:
Installation in the engine compartment provides suf-
ficient screening of radio interference.

6 | Installation Example
12
6.3 Heater Components
Fig. 3: Thermo Top Evo Components
1 Combustion Air Fan
7
Exhaust Outlet
2 Water Inlet
8
Exhaust Gas Temperature Sensor
3 Water Outlet
9
Fuel Inlet
4 Circulation Pump
10
Air Inlet
5 Fuel Metering Pump
11
Control Unit
6 Combustion Chamber
12
Burner Motor

13
6 | Installation Example
6.4 Mounting the Heater to
the Vehicle
6.4.1 Allowable Mounting Positions
Fig. 4: Thermo Top EVO Orientation
Fig. 5: Allowable Enclosure Kit Mounting Positions
6.4.2 Standard Mounting Bracket
The heater must be fastened on the bracket with at
least 3 (three) M5 bolts torqued to 6 lb-ft (8Nm). The
heater fastening screws are approved for bracket
metal thickness of 0.06 in – 0.12 in (1.5 mm – 3.0
mm). The following figure is an example of a Thermo
Top Evo bracket.
Fig. 6: Thermo Top Evo Standard Bracket Exploded
View and Dimensions

6 | Installation Example
14
CAUTION
Before drilling holes in the frame, consult
the manufacturer for guidelines and restric-
tions!
Do not weld vehicle frame or flanges!
Fig. 7: Mounting Hole Dimensions – Enclosure Box
Fig. 8: Mounting Points – Mounting Plate
11.8 in
(300 mm)
4.1 in
(105 mm)
9.6 in (244 mm)
3.7 in (94 mm)
0 .3 in (7.5 mm)

7 | Coolant System
15
7 Coolant System
WARNING
The vehicle’s cooling system is pressurized.
Allow the system to cool before working on
the cooling system. Failure to do so can
cause burns.
The cooling system must be bled carefully before us-
ing the heater for the first time or after the cooling
system has been serviced.
A properly bled cooling system can be identified by
the circulating pump operating virtually silent. Im-
proper bleeding may cause the heater to fault due to
an overheat condition. Refer to the workshop manual
for fault codes and diagnosis.
7.1 System Connections
The heater is connected to the vehicle’s cooling
system. The coolant quantity present must at least be
equal to the volume specified. See Coolant
Specifications in the Technical Data table on page 9.
Heater hoses used in this installation must at least
comply with SAE 20 R3 specifications. The hoses
must be routed without kinking and preferably uphill
from the heater to ensure proper bleeding.
Fig. 10: Typical Pre-Heating System Configuration
Separate the heater supply and return connections
at the engine as far apart as is practical for optimum
engine heating and heater performance when the
heater is used for engine pre-conditioning.
1 Coolant Supply Con-
nection
2 Vehicle Heat Ex-
changer
5 Coolant Return Con-
nection
6 Engine Water Pump
3 Coolant Pump 7 Thermostat
4 Thermo Top EVO
7.2 Heater Connections
Refer to Fig. 11, the contact surfaces of the O-rings
in the heat exchanger must be clean. Apply a suit-
able lubricant to the O-rings prior to installation in
the heat exchanger.
Install the O-rings in place. Mount the coolant con-
nector housing in the retaining plate. Rotate the
connection pieces to the necessary installation posi-
tion. Fasten the retaining plate.
To enable the self-bleeding of the heater, the
coolant-outlet connection piece must be positioned
pointing 0° to 90° upward.
Fig. 9: Ensure Optimum Cross-Flow

16
7 | Coolant System
NOTE
IMPORTANT
The heater comes pre-assembled; however,
if direction of the water inlet or outlet
needs to changed use the following torque
specification.
5X15mm self-tapping screw, torque to 5 lb-
ft (7 Nm).
Fig. 11: Coolant Connections at Heater
7.3 CoolantSystemConnections
NOTE
The hose clamps must be tightened with a
torque of 40 lb. in. (4.5 Nm). The use of sil-
icone hose requires special hose clamps.
The coolant quantity in the coolant circuit corres-
ponds to the minimum volume specified in Technical
Data on page 9.
The heater should preferably be integrated into the
coolant system close to the inlet of the vehicle heat
exchanger.
Connect the heater to the vehicle coolant system as
shown in Coolant System on page 15.
Route coolant hoses in such a way to avoid kinks
and pinches. Be sure the hoses run slightly uphill
from the heater to help in bleeding the coolant sys-
tem.
Secure hose connections using hose clamps.
NOTE
When integrating the coolant hoses in the
coolant circuit, the correct direction of flow
of the coolant must be ensured. Use the
coolant flow arrows on the heater when in-
stalling coolant hoses.
Fig. 12: Flow Direction Arrows
Care must be taken to bleed the cooling system be-
fore the heater is started for the first time or after re-
filling with fresh coolant. Heater and lines should be
installed in such a way as to ensure static bleeding.
Insufficiently bleeding the coolant circuit can lead to a
malfunction due to overheating or to frequent switch-
on/switch-off cycles of the heater.
Separate the heater supply and return connections
at the engine as far apart as possible for optimum
engine heating and heater performance.

17
7 | Coolant System
7.4 Circulation Pump Installation
Fig. 13: Circulation Pump Installation Positions -
U4847
In most cases, the circulation pump comes pre-as-
sembled and is attached to the heater mounting
bracket. The circulation pump can also be mounted
remotely if needed.
The circulation pump must be installed in the coolant
circuit on the pressure side on the heater (heat-
exchanger inlet). Ensure the correct direction of flow
from the circulation pump to the vehicle’s coolant
circuit. The installation position of the circulation
pump must be chosen so that the circulation pump is
self-bleeding. It must be possible for the air trapped
in the circulation pump to escape upward via the
connection piece. Incorrect installation can result in
malfunction of the circulation pump.
7.5 InspectingtheCoolant
System
After the heater and all coolant-carrying compon-
ents have been installed, the entire coolant system
must be checked for leaks with the system pressure
specified by the vehicle manufacturer. To do this,
start the engine and heater. Allow system to heat
until the radiator thermostat opens.

8 | Fuel Supply
18
8 Fuel Supply
8.1 Extracting Fuel from a Fuel
Tank
This separate fuel pickup precludes any effect of
pressure.
Where available, a spare NPT threaded port can be
used for the standpipe. If a spare port is not present,
follow the instructions.
Fig. 14: Fuel Standpipe
Separate Fuel Tank
A plastic or metal fuel tank may be installed. If the
use of a separate fuel tank is required, the fuel filler
cannot be installed in the passenger compartment
and must have a filler cap to prevent fuel spillage.
Follow the proceeding section for fuel extraction in-
stallation.
Install an appropriate tank extracting device based
on the fuel tank material.
All Fuel Tanks
The fuel system will build positive pressure in high-
ambient-temperature conditions. Relieve pressure by
removing the fuel filler cap or waiting for the fuel
tank to cool down.
Only drill a hole in the top of the fuel tank if in-
stalling a fuel standpipe.
After any drilling or cutting is performed, clean
and deburr the hole to eliminate potential leak
paths.
Clean the installation surface of the tank extract-
ing device.
In installed position, maintain a minimum dis-
tance of 1 in (25 mm) between the standpipe
and base of the fuel tank / fuel delivery unit.
Position the tank extracting device vertically.
Use the specific tank extracting device
(standpipe) approved by the manufacturer.
Make sure that the standpipe of the tank ex-
tracting device does not impair the operation of
the vehicle’s fuel delivery unit or fuel gauge in
any operating mode.
8.2 Fuel Standpipe Installation
The fuel pickup is carried out by use of a fuel stand-
pipe. The standpipe is designed to fit a 0.25 in
(6mm) fitting, available on some fuel tanks. If no fit-
ting is available drill a 1 in (25mm) hole and install
the fittings as shown in Fuel Standpipe on page Fig.
14].
6
7
Ø 1" (25mm)
1" (25mm)
Fuel Tank
3
5
2
4
1
1 Fuel standpipe
5
Rubber washer
2 Compression fitting
6
Tank boss (1/4” NPT)
3 Hex nut
7
1” (25mm) hole
4 Metal washer

19
8 | Fuel Supply
When extracting fuel, ensure that it is not blocked
by check valves. In addition, make sure that the
standpipe sits approximately 1 in (25mm) off the
bottom of the fuel tank. This prevents the standpipe
from picking up debris while also ensuring the heater
never runs the vehicles fuel supply completely empty.
Refer to Fuel Standpipe on page Fig. 14]
To install the standpipe:
1 - bore a 25mm (1”) hole through top of fuel tank.
2 - remove sharp burrs and smooth edges with
emery cloth.
3 - determine length of standpipe when installed.
End should sit at least 25mm (1”) above tank bot-
tom.
Cut off excess standpipe at a 45-degree angle.
Remove burrs.
4 - loosely assemble items.
5 - place sealing compound on threads of item 2 and
thread into item 6. Tighten item 2 completely.
6 - slide standpipe into hole at angle. Slip one
shoulder of item 6, inside the hole as shown.
Fig. 16: Standpipe Installation – 2
8 - Center the standpipe in the hole in the fuel tank.
Fig. 15: Standpipe Installation - Illustration 1
7 - bring the standpipe up to vertical and insert the
opposite shoulder through the hole in the tank.
Fig. 17: Standpipe Installation – 3

8 | Fuel Supply
20
9 - Pull up on the standpipe and tighten in place with
the clamping nut (item 1). Do not overtighten the
nut to prevent the rubber washing becoming dis-
torted.
Fig. 18: Standpipe Installation - 4
Fuel Tank