hmason
Guru
- Joined
- Aug 9, 2013
- Messages
- 2,764
- Location
- USA
- Vessel Name
- Lucky Lucky
- Vessel Make
- Pacific Mariner 65
Our 8 KW Onan generator would run hot (over 225 degrees F) when trying to use 2 air cond units as well as battery charger, hot water heater, fridge and inverter charger. Eventually it would shut down. After checking all possible sources of restricted water flow, I concluded the heat exchanger needed cleaning. I's a b**ch to get to so I decided to try "Barnacle Buster."
I purchased the concentrate and diluted it per the directions. I then closed the raw water intake strainer seacock and ran the genset while pouring the solution into the top of the sea strainer. After introducing enough to fill the system, I shut down the genset and let things sit for 2 hours.
I then opened the seacock, and started the genset. The water coming out of the exhaust was dark brown at first and then cleared up. I can now run the genset with 3 AC units turned on plus all of the other items mentioned and the temp gauge sits right at 178 degrees. Now I will attempt the same process with the main engines.
BTW, I think the mods/admins should consider a thread category where members can report successes and failures with products they use/try. I think that would be most informative. Forgive me if it already exists and I just can't find it.
Howard
I purchased the concentrate and diluted it per the directions. I then closed the raw water intake strainer seacock and ran the genset while pouring the solution into the top of the sea strainer. After introducing enough to fill the system, I shut down the genset and let things sit for 2 hours.
I then opened the seacock, and started the genset. The water coming out of the exhaust was dark brown at first and then cleared up. I can now run the genset with 3 AC units turned on plus all of the other items mentioned and the temp gauge sits right at 178 degrees. Now I will attempt the same process with the main engines.
BTW, I think the mods/admins should consider a thread category where members can report successes and failures with products they use/try. I think that would be most informative. Forgive me if it already exists and I just can't find it.
Howard