IK1500091 Service Bulletin/Repair Instructions

IK1500091 - DAVCO Fuel Water Separator Conversion From Fuel Heated to Coolant He... Page 1 of 8
Countries:
CANADA, UNITED STATES Document ID: IK1500091
Availability:

Major System:
FUEL SYSTEMS
Revision:
1
Created:
1/5/2018
Current Language: English
Last Modified: 1/18/2018
Other Languages: NONE
Author:
Viewed:
Jon Pierce
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Title : DAVCO Fuel Water Separator Conversion From Fuel Heated to Coolant Heated

Applies To : LT with A26 engines ONLY
CHANGE LOG

Please refer to the change log text box below for recent changes to this article:

1/05/2018 - Initial Article Release



DESCRIPTION

This document will guide the user through converting a Davco Fuel Pro 382 from fuel heated to coolant heated.
Special Tools / Software

Tool Description

Navistar Coolant Management Tool
Tool Number
Notes
KL5007NAV
Refer to LMS training coolant management

tool
SYMPTOM(s)

Loss of power while driving, potential crank no start.
Diagnostic Trouble Code(s) & Dashboard Indicator Light(s):
DTC/Light

SPN 157 FMI 1 FCAP

SPN 157 FMI 18 FCAP

SPN 2798 FMI 8 FCAP

SPN 6653 FMI 18 FCAP
Description

Engine Fuel 1 Injector Metering Rail 1

Pressure Most Severe

Engine Fuel 1 Injector Metering Rail 1

Pressure Moderate

Engine Fuel 1 Injector Group 2 : Abnormal

Frequency Or Pulse Width Or Period

Engine Fuel 1 Injector Metering Rail 1 Cold

Start Pressure : Data Valid But Below
Customer Observations or Concerns:
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Possible MIL light, crank no­start. Loss of power. Unit may start normally but as soon as a load is put on the engine the filter may plug and lose

prime.
SERVICE PARTS INFORMATION

Parker

Part#

6-3/8

F50G­S
Navistar

Part#
6AFJ6
864456R1
Weatherhead
Additional

Options
A6405-6-6
103426DAV
Description
Qty.
Straight adapter fitting 9/16 to 3/8
2
90 Degree 3/8 to 5/8 hose barb
1
Hose 3/8
4
2643504R1
Obtain Locally Length = 3.5 ft.
Hose 5/8
6
2643485R1
Obtain Locally Length = 5 ft.
DAVCO fuel filter
1
FS19765
90 degree 3/8 to 3/8 hose barb
1
3/8 to 3/8 straight hose barb
1
444821C2
W05706BC06

W05710B-106
3609113C1

M18 x 1.5 to 3/8 straight adapter
1
A7455-06-18
M14 x 1.5 to 5/8 90 degree adapter
1
3989702C1
Saddle
1
3554554C1
Zip ties
10
386170C1
3/8 hose clamp
2
3588172C1
5/8 hose clamp
2
2022866C1
P clips - 3/8 line
3
3564290C1
Hose insulation
9
2000310C1
Winter front
1
ZEDWF3033
664601
Sourcing

Order From

Davco

Order From

Nav.
Notes

2 on the FWS

1 on the FWS return

side
Obtain Locally Fuel Filter

Order From

1 on the FWS

Nav.

supply side

1 on the engine

supply

Order From

Nav.

1 on the engine

supply

Order From

1 on coolant return

Nav.

manifold

Order From

1 on return line

Nav.

Order From

Return side Nav.

crossmember

Order From

Supply line

Nav.

Order From

Return line

Nav.

Order From

ECM mounting

Nav.

Order From

Length = 8.5 ft.

Nav.

Order From

Nav.
DIAGNOSTIC STEP(s)
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IK1500091 - DAVCO Fuel Water Separator Conversion From Fuel Heated to Coolant He... Page 3 of 8
Step Supply Fitting Install

1
Process

1. Using the Coolant management tool

drain coolant from the system.

2. Remove plug from engine coolant

supply manifold in front of the valve cover

and install 3609113C1 45 degree fitting.

3. Also shown in photo below is optional

straight fitting.
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Step Return Fitting Install
Process

1. Locate

the bottom

port on the

coolant

manifold

located on

the right

side of

engine.

2. Remove

the plug

and install

3989702C1

90 degree

fitting with

the hose

barb

orientated

in the

direction

shown in

the photo

on the left.
2
Step
Drain and Remove Fuel Lines
3
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Step
Remove and Install Fuel LIne Fittings
4
Step
Fuel Line Install
5
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IK1500091 ­ DAVCO Fuel Water Separator Conversion From Fuel Heated to Coolant He... Page 6 of 8
Step
Coolant Supply Line Routing
6
Step
Coolant Return Line Routing
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IK1500091 ­ DAVCO Fuel Water Separator Conversion From Fuel Heated to Coolant He... Page 7 of 8
7
Step
Finishing Steps
8
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WARRANTY INFORMATION

Warranty Claim Coding:

Refer to the Warranty Coding Manual for Group and Noun Codes.
Standard Repair Time(s):

Refer to the SRT Manual for Repair Times
OTHER RESOURCES

Master Service Information Site

Voss Fuel Line Connector Repair Information
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Copyright © 2018 Navistar, Inc.
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