Leak in 7500 watt Onan Diesel Generator
See the below photo. My generator is leaking a pretty steady drip of oil that is coming out of one of those weep holes near the drain plug. It’s not coming from the filter and you can’t access that ...
Forum Discussion
I went and talked to an Onan person and got back under and looked at it a lot better. The only way to get to where ever that leak is would be to remove the generator from the RV. I also looked for how to do that and with the right equipment it doesn’t look too difficult. In fact looks like it can be removed with a motorcycle lift.
But before I did all that, I decided to go ahead and start the generator and let it run under full load for a while. So I let it run for close to an hour and the longer it ran the more the leak slowed until it’s down to about one drip every two or three minutes. Although I’m no mechanic, I suspect I let it sit too long without significant use. The motorhome has mostly been in storage for the last three years and when I have used it we’ve been in full hookup sites. I try and start the generator often, but not as often as I should. So for now, I’m just going to use the generator and see what happens. I suspect maybe I let it sit too much and somethings dried out and the oil leak started. As I use it those things that dried are getting lubed again and the leak is stopping. I’ll just keep an eye on the oil level. After running it for an hour the spot on the ground wasn’t very big and there was no noticeable drop in the oil level on the dip stick. So I’ll just keep a close eye and see what happens.
But before I did all that, I decided to go ahead and start the generator and let it run under full load for a while. So I let it run for close to an hour and the longer it ran the more the leak slowed until it’s down to about one drip every two or three minutes. Although I’m no mechanic, I suspect I let it sit too long without significant use. The motorhome has mostly been in storage for the last three years and when I have used it we’ve been in full hookup sites. I try and start the generator often, but not as often as I should. So for now, I’m just going to use the generator and see what happens. I suspect maybe I let it sit too much and somethings dried out and the oil leak started. As I use it those things that dried are getting lubed again and the leak is stopping. I’ll just keep an eye on the oil level. After running it for an hour the spot on the ground wasn’t very big and there was no noticeable drop in the oil level on the dip stick. So I’ll just keep a close eye and see what happens.
