If the engine is not started for several weeks, the lubricating oil drains from the cylinder walls and piston rings. This lack of oil permits the piston rings to rust; and causes metal-to-metal contact between the piston rings, the pistons and the cylinder liners when the engine is started. This metal-to-metal contact will result in shorter engine life. To prevent excessive engine wear:
- 1. Be sure all lubrication points mentioned in the LUBRICATION AND MAINTENANCE CHART are serviced.
- 2. Once a week, start and run the engine until it is thoroughly warm. For unattended atomatic start-stop systems, an engine exerciser can be installed for this purpose.
- 3. Stop the engine, perform required servicing.
- 4. Check the cooling system for adequate protection against freezing if freezing temperatures can be expected. A 50-50 solution of permanent type antifreeze and approved water will give protection below -20°F (-29°C).
If it will be impossible to start the engine every week, see your Caterpillar dealer for instructions to prepare your engine for further storage.