Garrett/Airesearch IE831-800 Engine Engine
The Garrett/Airesearch IE831-800 is a open cycle, single shaft constant speed gas turbine engine rated at 41730 rpm. It powers generator sets from Cummins/Onan, including the GT. It holds 50 L (13.2 gal) of coolant.
Also known as: Garrett/Airesearch IE831-800
Engine specifications
| Coolant capacity | 50.0 L |
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| Aspiration | Open cycle, single shaft constant speed gas turbine |
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| Rated speed | 41730 rpm |
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Generator sets powered by this engine
1
Common problems
14- Turbine lights off, but flames out.
Cause: Fuel system malfunction.
Fix: See cause and remedy above. Check compressor air line for leaks. - Starter does not crank turbine.
Cause: Operation selector switch not in 'RUN' position.
Fix: Place switch in appropriate position. - Starter cranks, but does not disengage.
Cause: Compressor discharge pressure switch inoperable.
Fix: Replace switch. - Starter cranks turbine, but combustion does not occur.
Cause: Ignition system malfunction.
Fix: See Ignition System Troubleshooting. - Plugged fuel filters.
Fix: Replace filter elements. - No light-off.
Cause: No fuel.
Fix: Check fuel supply. Check manual shut-off valve. Excessive moisture in fuel system or dirty filter elements. Replace filter elements and purge fuel system. Fuel system components or circuits defective. Contact service representative. - No light off.
Cause: No fuel.
Fix: Check fuel supply; replenish if necessary. - Minimum fuel setting too low.
Fix: Adjust minimum fuel setting on fuel control valve to higher setting (contact service representative). - Loose fuel connection.
Fix: Tighten fuel connections as required. - Fuel system components or circuits defective.
Fix: Contact service representative. - Excessive water in fuel system.
Fix: Check tank and remedy. - Excessive air in fuel system.
Fix: Repair condition that caused air to enter fuel system, bleed fuel system. - Day tank fuel level low.
Fix: Check float valve. - Contaminated fuel supply.
Fix: Clean and refill fuel tank. Replace filter elements.
Compiled from service & troubleshooting documentation across every generator set that uses the Garrett/Airesearch IE831-800.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
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| Fuel filter | | | — | 3000 hr | find |
| Oil filter | | | — | 500 hr | find |
| Belt | | | — | | find |
| Oil | | 13.0 gallons | — | 500 hr | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Common questions
Which generators use the Garrett/Airesearch IE831-800 engine?
The Garrett/Airesearch IE831-800 powers 1 generator set(s), including Cummins/Onan GT.
How often should you change the oil in the Garrett/Airesearch IE831-800?
The Garrett/Airesearch IE831-800 oil change interval is every 500 hours.
What is a common problem with the Garrett/Airesearch IE831-800 engine?
A commonly reported issue on generators using the Garrett/Airesearch IE831-800 is: Turbine lights off, but flames out.. Cause: Fuel system malfunction.. Fix: See cause and remedy above. Check compressor air line for leaks..