Checking for fuel and oil line leaks
It is crucial to regularly inspect lines and connections for fuel and oil leaks, especially if the generator has been running for an extended period during an outage. Leaks often indicate wear or damage to components, which, if left unaddressed, can lead to more significant and costly repairs.
Environment
This article applies to Generac air-cooled Guardian Series 10-26 kW generators (2017 to present).
While routine maintenance can be performed by anyone, Generac recommends contacting a local Authorized Generac Service Dealer. See How Can I Find a Generac Service Dealer in My Area?
When to check for leaks?
- Routine interval checks for fuel and oil leaks are outlined in the Owner's Manual Maintenance Schedule.
- After any service work is completed on the fuel or oil system it is recommended to perform a leak test.
- It is important to keep records of any maintenance performed.
Routine Fuel and Oil Line Maintenance Check
Initial Assessment: Before starting the generator, check for any visible signs of wear, damage, or leaks on both fuel and oil lines.
- Signs of oil or fuel leaks include visible wet spots or puddles, a strong smell of oil or fuel, discoloration or stains on the generator or surrounding areas, unexplained drops in fluid levels, changes in generator performance, excess smoke or fumes, and sometimes audible hissing or spray sounds near fuel lines.
Cleaning for Leak Identification: Clean any suspected area of leak origin to better identify the source of oil leakage.
Oil Line Inspection
Examine the oil cooler and filter lines for any visible signs of leakage.
Use of Leak Detection Dye (Oil Leaks): If needed, add a leak detection dye to the oil to identify hard-to-detect leaks.
Fuel Line Inspection
Examine the generator's interior flexible fuel lines for cracks, kinks, and leaks.
Use of Leak Detection Solution (Fuel Leaks): If needed, leak tests can be done with a leak detection solution or the use of an electronic leak detector.
Repair and Recheck: Address any identified leaks immediately and recheck to ensure the repairs are effective.
See also
