INSTALLATION TIPS FOR NON-STANDARD ENGINES Caterpillar

   March 2002  

INSTALLATION TIPS FOR NON-STANDARD ENGINES

The following are comments on installing reman engines in applications for which the reference engine was not originally designed. Installation under these circumstances can be greatly aided by comparing the consist of the reman engine with the consist of the engine being replaced. Reman engines are configured from a production engine that was designed to be installed in a particular OEM chassis. Reman engines may be installed in chassis other than what they were originally configured for if certain engine groups affecting chassis interface are modified or exchanged between the engines. The following is a list of reman engine models and the chassis the reference engine was designed to match:
 

The engine groups needing possible modification or exchange may include flywheel housing, exhaust manifolds, water lines, oil lines, fuel lines, air inlet, exhaust location, and oil sump location. Refer to engine spec sheets to determine if the engine being installed will cause chassis modifications due to increased height or width.

Using a reman engine to replace an engine with different aspiration, mechanical control versus electronic control, or a different engine model can be accomplished in some cases. The following table contains possible exchanges with comments regarding written guidelines, parts compatibility, changes to chassis interfaces, and other considerations. The table is not intended to completely describe all the concerns that may be encountered in an installation.

The following concerns should be addressed with any conversion:

1. Radiator and aftercoolers will need to be properly sized and located to assure correct engine performance. Old radiators should be cleaned.
2. The driveline must be compatible with the conversion engine rating and performance characteristics.
3. Air piping, exhaust piping, oil lines, water lines, fan drive and accessory drives may need to be modified. Some components may not be able to be exchanged between engines and must be purchased separately.
4. Fuel supply and return line size is a concern when converting from mechanical to unit injected engines due to the larger volume of fuel circulated by the unit injected engines.

It is the responsibility of the engine installer to determine additional costs in parts and labor that may be incurred with any of the engine installations shown. Caterpillar Reman is not responsible for additional costs for parts or labor.