otrfun wrote:
There is more than the cost of gas to worry about if one intends to run their Onan 5500 24/7.
Here's some of the periodic maintenance Onan recommends for the Onan 5500:
Replace oil and oil filter every 150 hours (or every 6.25 days of 24/7 runtime).
Replace air filter every 150 hours (or every 6.25 days of 24/7 runtime).
Replace spark plugs and fuel filter every 450 hours (or every 18.75 days of 24/7 runtime)
Adjust valve lash every 450 hours (or every 18.75 days of 24/7 runtime).
Filter (oil, air, and fuel) and oil changes on the Onan 5500 aren't very difficult.
Anyone replace spark plugs on a 5500? Difficult?
What about adjusting the valves. Do you have to remove the generator to get access to the valves?
The numbers for when to change oil, etc are engine hours, not wall clock hours. That is why there is an hour meter on the generator.