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webasto smokes after shutdown,
installed new high pressure nozzle replaced fuel filter , cleaned burner assembly, still smokes after unit goes through its cycle,. Does not smoke on start up at all–?? What should I look for . On a 1990 liberty
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4 Replies
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If the fuel solenoid does not close crisply. It might have a puff of smoke on shut down. A puff is of no great concern. If it runs with a clear exhaust just carry on.
The burners I work on are 50,000 btu, the fuel pressure set at 145 psi and the nozzle is a Danfoss brand 0.35.
Install procedure for the nozzle is tighten nozzle, loosen a quarter turn and tighten again.
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Rudy, Liberty installed the DB2020, and 80,000 btu unit because it always heats the engine block as well as heat the coach interior, so the nozzle is a .65, not the .35 you would utilize on the DB2010 50,000 btu unit. Just FYI.
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Thanks Ben. I appreciate the extra info.
I am Aqua Hot oriented and the 80,000 btu burner is a new animal to me. I do not carry parts for it and the one I saw looked very different to the 50,000 btu burner I am used to.
As long as we are discussing a Aqua Hot Heater and burner or the 50,000 btu Webasto Heat Exchanger Burner, I am conversant on those.
It is good to know who I can refer to when the 80,000 btu burner is shown to myself to help the owner resolve his concerns. Bless you for your expertise and experience.
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Very welcome Rudy. We are all in it together lol.
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