8kw Onan diesel quiet generator
I just noticed while running our diesel Onan generator ( MH one year old) today it was putting out thin puffs of white smoke. I had both air conditioners on. When I exited the MH a odd smell got my a...
Forum Discussion
Groover wrote:
White smoke in the exhaust is often associated with water. Keep an eye on your coolant level just in case and your fuel quality. It sounds like you let the coach sit since last fall when you added the fuel stabililzer and biocide. You may have condensation in the fuel. That would not be good at all. Did you store it with the fuel tank full? The less air there is in the tank the less condensation you will get. Also, it is recommended that you run the generator monthly for 2 hours at a time under load. Have you been doing that and running the main engine as well? Is there water in you main engine's water separator?
The tank was topped off when put into storage. I ran it one hour every other week and turned on the block heater for the load.
It ran rough during the extremely cold weather when first starting each time in the winter until warmed up. I did notice a small cloud of white smoke each time when starting cold during the winter. Didn't notice that yesterday when it started.
We used the MH two weeks ago on a trip. It ran fine as usual. Didn't notice any degradation in power or engine performance. I will have to look at the water separator.
I have noticed the inside of the gen exhaust has black oily residue like soot
