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M11 Series – Service Manual – 007-039   Lubricating Oil Thermostat

Table of Contents

Remove
Inspect for Reuse
Install

Remove

 TOC

Remove the lubricating oil filter head.

Refer to Procedure 007-015.

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Inspect for Reuse

 TOC

 WARNING 

The flash point of new lubricating oil is approximately 221°C [430°F]. Do not allow the oil temperature in the container to exceed 149°C [300°F]. Do not allow water droplets to enter the container of hot oil. Water droplets will cause a violent reaction, which can cause personal injury.

Suspend the thermostat and a 116°C [240°F] thermometer in a container of new lubricating oil. Do

not allow the thermostat or the thermometer to touch the sides of the container.

Heat the lubricating oil.

  
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Write down the temperature at which the valve is fully extended. The valve

must be fully extended to at least 6 mm [0.250 in] from the closed position when the temperature reaches 116°C [240°F].

Replace the thermostat if it does

not operate as described.

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Install

 TOC

Install the filter head onto the engine.

Refer to Procedure 007-015.

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Operate the engine at idle speed for 3 minutes to inspect for leaks at the filter head.

NOTE: Engine oil pressure

must be indicated on the gauge within 15 seconds after starting. If oil pressure is

not registered within 15 seconds, shut off the engine immediately to avoid engine damage. Confirm the correct oil level in the oil pan.

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Last Modified:  07-May-2003
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