Paul & Deb
Senior Member
Well, I have had a change of thought here.
Recap: a few weeks ago I found a rats nest in my Onan generator housing which is mounted in my front compartment. It was fresh and I had no evidence of rats anywhere else in the trailer. The nest consisted of nut shells from my neighbor's macadamia nut tree, some twigs and, primarily, pieces of foam material. Initially I thought the foam was insulation material torn off of the generator case.
My plan was to disassemble the "generator box" as it prohibited me from removing the generator cover and completely clean out and inspect the generator before I started it. I had no idea if wires had been chewed or nesting material got into sensitive areas, etc..
Fast forward to now: I was able to get the box apart, remove the cover from the generator and completely clean out all the material. Man it was everywhere! I used my air compressor to blow everything out along with a vacuum cleaner. It is now clean and there appears to be no damage or chewed wires or anything .. wow, is that lucky! before reassembly I ran the generator and it runs fine. That also helped dislodge some small pieces and blow them out.
Now that I can get a good look inside the generator I realize that I no longer think the foam material is native. None of the existing insulating material in the Onan or associated with the outer generator box has the same type of foam.
So I am totally stumped as to where it came from. I realize the rats could have brought it in but I've looked all over the area and I don't see anything it could have come from near by.
I guess I'm wondering, from those who may have more experience with rats, how far would rats bring material to make a nest? I always thought they just got stuff right where they nest. I mean they're not like birds who fly all over to pick stuff up!
Also, any wild guesses on what this foam could be from would help me figure it out. It looks so familiar.



Recap: a few weeks ago I found a rats nest in my Onan generator housing which is mounted in my front compartment. It was fresh and I had no evidence of rats anywhere else in the trailer. The nest consisted of nut shells from my neighbor's macadamia nut tree, some twigs and, primarily, pieces of foam material. Initially I thought the foam was insulation material torn off of the generator case.
My plan was to disassemble the "generator box" as it prohibited me from removing the generator cover and completely clean out and inspect the generator before I started it. I had no idea if wires had been chewed or nesting material got into sensitive areas, etc..
Fast forward to now: I was able to get the box apart, remove the cover from the generator and completely clean out all the material. Man it was everywhere! I used my air compressor to blow everything out along with a vacuum cleaner. It is now clean and there appears to be no damage or chewed wires or anything .. wow, is that lucky! before reassembly I ran the generator and it runs fine. That also helped dislodge some small pieces and blow them out.
Now that I can get a good look inside the generator I realize that I no longer think the foam material is native. None of the existing insulating material in the Onan or associated with the outer generator box has the same type of foam.
So I am totally stumped as to where it came from. I realize the rats could have brought it in but I've looked all over the area and I don't see anything it could have come from near by.
I guess I'm wondering, from those who may have more experience with rats, how far would rats bring material to make a nest? I always thought they just got stuff right where they nest. I mean they're not like birds who fly all over to pick stuff up!
Also, any wild guesses on what this foam could be from would help me figure it out. It looks so familiar.


