NHTSA ID Number: 10214309
Manufacturer Communication Number: DSM.0052
TSB/Document Date: 2022-06-21
Summary
Service manual
for Hexagon Agility® 488LPI propane autogas (LPG) engine mechanical and fuel components.
44 ft-lbs
Engine Block Coolant Drain Hole Plug - Side
30 Nm
23 ft-lbs
50 Nm
37 ft-lbs
2-3 T.F.F.T +
Engine Block 45° Nipple to Air Compressor Oil Supply Line
align to 26° relative to
engine front
Engine Coolant Crossover Bracket Bolt
50 Nm
37 ft-lbs
Engine Coolant Temperature (ECT) Sensor
50 Nm
37 ft-lbs
Engine Harness Bracket Bolt
15 Nm
11 ft-lbs
Exhaust Manifold Mounting Nuts – In Sequence
16 Nm
12 ft-lbs
Exhaust Manifold Mounting Bolts
36 Nm
27 ft-lbs
Exhaust Manifold Mounting Studs
20 Nm
15 ft-lbs
Exhaust Manifold Heat Shield Mounting Bolts
25 Nm
18 ft-lbs
Exhaust Manifold Heat Shield Mounting Nuts
25 Nm
18 ft-lbs
Exhaust Manifold to Y-Pipe Mounting Nuts
OEM
OEM
Exhaust Manifold to Y-Pipe Mounting Studs
OEM
OEM
First Pass
40 Nm
30 ft-lbs
Second Pass
80 Nm
59 ft-lbs
Final Pass
100 Nm
74 ft-lbs
First Pass
6 Nm
53 in-lbs
Final Pass
12 Nm
106 in-lbs
95 Nm
70 ft-lbs
Front Engine Mount Bracket-to-Vehicle Frame Bolts
OEM
OEM
50 Nm
37 ft-lbs
Harmonic Damper Bolt
255 Nm
189 ft-lbs
Flexplate Mounting Bolts – In Sequence
Front Cover Bolts
Front Engine Mount Bracket-to-Engine Block Nut
DSM.0052 Ver. 1.0 05/27/2022
488LPI Propane Autogas Engine Mechanical
and Fuel Components Service Manual
Page 114 of 117
Component
SPECIFICATION*
Metric
SAE
Ignition Coil Bolts
12 Nm
106 ft-lbs
Ignition Coil Wiring Harness Bolts
12 Nm
106 ft-lbs
First Pass
10 Nm
7 ft-lbs
Second Pass
15 Nm
11 ft-lbs
Third Pass
20 Nm
15 ft-lbs
Fourth Pass
33 Nm
20 ft-lbs
Fifth Pass
47 Nm
35 ft-lbs
Lower Intake Retaining Manifold Bolts – In Sequence
Oil Cooler Adapter
2-3 T.F.F.T.
Oil Cooler Adapter Cap
1.5 F.F.W.R.
Oil Filter Hand Tighten + 1-1.25 Turns
38 Nm
28 ft-lbs
Oil Filter Fitting
66 Nm
49 ft-lbs
20 Nm
15 ft-lbs
First Pass
10 Nm
89 in-lbs
Final Pass
25 Nm
18 ft-lbs
28 Nm
21 ft-lbs
Oil Pressure Sensor
30 Nm
23 ft-lbs
75 Nm
56 ft-lbs
Oil Pump Cover Bolt
12 Nm
106 in-lbs
Oil Pump Drive Bolt
25 Nm
18 ft-lbs
Rocker Arm Retainer Nut Set Screw – Intake Valve
21.7 Nm
20 ft-lbs
Rocker Arm Retainer Nut Set Screw – Exhaust Valve
20.3 Nm
15 ft-lbs
30 Nm
23 ft-lbs
Thermostat Housing Bolts
30 Nm
23 ft-lbs
Throttle Body Nuts
10 Nm
89 in-lbs
Throttle Body Studs
12 Nm
106 in-lbs
15 Nm
11 ft-lbs
Transmission Adapter Access Cover Bolt
15 Nm
11 ft-lbs
Transmission Adapter Retaining Bolts
67 Nm
50 ft-lbs
Oil Pan Bolts – In Sequence
Transmission Dipstick Support Bracket Bolts
F.S.N.S.
Upper Intake Manifold Retaining Bolts
30 Nm
23 ft-lbs
Upper Intake Manifold Retaining Nuts
30 Nm
23 ft-lbs
DSM.0052 Ver. 1.0 05/27/2022
488LPI Propane Autogas Engine Mechanical
and Fuel Components Service Manual
Page 115 of 117
Component
SPECIFICATION*
Metric
SAE
Valve Lifter Guide Retainer Bolts
25 Nm
18 ft-lbs
Valve Cover Bolts – In Sequence
First Pass
6 Nm
Final Pass
Water Pump to Air Compressor Coolant Adapter
Water Pump Mounting Studs
53 in-lbs
106 in12 Nm
lbs
2-3 T.F.F.T.
F.S.N.S.
*SPECIFICATION KEY:
F.F.W.R. = Flats From Wrench Resistance
F.S.N.S. = Fully Seated, Not Stripped
T.F.F.T. = Turns From Finger Tight
DSM.0052 Ver. 1.0 05/27/2022
488LPI Propane Autogas Engine Mechanical
and Fuel Components Service Manual
Page 116 of 117
Front End Accessory Drive (FEAD)
Torque Specifications
COMPONENT
SPECIFICATION
Metric
SAE
Air Compressor Bracket Bolts
70 Nm
52 ft-lbs
A
Air Compressor Retaining Bolts
60 Nm
44 ft-lbs
A
Air Compressor Oil Feed Line Flare Nut
Air Compressor Oil Return Line Flare Nut
APPLICATION**
2 F.F.W.R.*
A
1.5 F.F.W.R.*
A
Air Compressor Drive Pulley Retaining Nut
130 Nm
100 ft-lbs
A
Air Compressor Drive Belt Idler Pulley Bolts
50 Nm
37 ft-lbs
A
Drive Belt Idler Pulley Large Bolt
50 Nm
37 ft-lbs
A, D, N, S
Drive Belt Idler Pulley Small Bolt
50 Nm
37 ft-lbs
A, D, N, S
Dual A/C Drive Belt Tensioner Bolt
50 Nm
37 ft-lbs
D
Dual A/C Drive Bracket Bolts
70 Nm
52 ft-lbs
D
30 Nm
23 ft-lbs
D
Harmonic Damper Bolt
255 Nm
189 ft-lbs
A, D, N, S
Main FEAD Belt Tensioner Bolt
50 Nm
37 ft-lbs
A, D, N
Main FEAD Bracket Bolts
70 Nm
52 ft-lbs
A, D, N, S
Single A/C Drive Belt Tensioner Bolt
50 Nm
37 ft-lbs
S
Single A/C Drive Bracket Bolts
70 Nm
52 ft-lbs
S
Water Pump Bolts - First Pass
25 Nm
19 ft-lbs
A, D, N, S
Water Pump Bolts - Final Pass
50 Nm
37 ft-lbs
A, D, N, S
Water Pump Pulley Bolts
35 Nm
26 ft-lbs
A, D, N, S
*F.F.W.R. = Flats From Wrench Resistance
**APPLICATION KEY: A = Air Brakes, D = Dual Air Conditioning, S = Single Air Conditioning, N = No Air Conditioning
DSM.0052 Ver. 1.0 05/27/2022
488LPI Propane Autogas Engine Mechanical
and Fuel Components Service Manual
Page 117 of 117
- 3X Stronger than the leading full synthetic*
- 10X Better high stress performance**
- 20,000 miles between oil changes***
- Viscosity breakdown as measured in Kurt Orbahn test on 5W...
- As measured in Seq IX test under high load/torque conditions...
- Phosphorus Replacement Technology to help extend the life of...
- Reduces leaks, oil burnoff and power robbing deposits
- 15,000 miles between oil changes*
- Meets or exceeds the following specifications: API SP/SN...
- Or one year, whichever comes first
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TSB/Document ID: DSM.0052
Replacement Service Bulletin Number:
MFR Communication Date: 2022-05-27
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
MFR Component System:
MFR Component Subsystem:
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