DSM.0052 Ver. 1.0   May 27, 2022



This manual is designed as a support document for trained technicians in the maintenance, inspection, and repair of 488LPI™ propane autogas engine mechanical and fuel system components provided by Hexagon® Agility®.

No attempt shall be made to install, maintain, or repair this product until this manual and all referenced supporting documentation have been read and fully understood.

Please click on the PDF link below to open the file.


Table of Contents

Inspection and Repair Procedures
Air Compressor Replacement
Air Compressor Belt Replacement
Air Compressor (A/C) Bracket Replacement
Air Conditioning Compressor Removal
Air Intake Tube Replacement
Alternator Removal
Belt Tensioner Replacement
Block Heater Replacement
Camshaft Inspection and Replacement
Crankshaft Front Oil Seal Replacement
Crankshaft Inspection
Crankshaft Rear Oil Seal Replacement
Cylinder Head Inspection and Replacement
Dual Air Conditioning (A/C) Accessory Bracket Replacement
Engine Front Cover and Crankshaft Front Oil Seal Replacement
Engine Removal and Replacement
Exhaust Backpressure Test
Exhaust Manifold Inspection and Replacement
Flexplate and Transmission Adaptor Replacement
Front End Accessory Drive Components (FEAD) Replacement incl. Tensioner / Pulley
Front Engine Mount Replacement
Fuel Distribution Block Replacement
Fuel Injector Replacement
Fuel Injector Tube Replacement
Fuel Pressure Test Procedure (please contact Hexagon Agility)
Fuel Rail Fittings Replacement
Fuel Rail Replacement
Fuel Rail Supply and Fuel Return Line Replacement 
Fuel System Pressurization Procedure (please contact Hexagon Agility) 
Harmonic Damper Replacement
Lower Intake Manifold Replacement
Main Front End Accessory Drive (FEAD) Bracket Replacement
Oil Pan Replacement
Oil Pump Drive Inspection and Replacement
Oil Pump Replacement
Power Steering Pump Pulley Replacement
Pushrod Inspection and Replacement
Roller Rocker Arm Replacement (please contact Hexagon Agility) 
Roller Rocker Arm Valve Lash Adjustment
Single Air Conditioning (A/C) Accessory Bracket Replacement
Thermostat Replacement
Throttle Body Replacement
Timing Chain and Sprocket Replacement
Upper Intake Manifold Replacement
Valve Cover and Gasket Replacement
Valve Lifter Replacement
Water Pump Replacement
References
Engine Mechanical Torque and Clearance Specifications
Front End Accessory Drive (FEAD) Torque Specifications

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