When sleeping in the aft cabin of my Hunter 356 I often get a strong odor of diesel fuel possibly from the fuel tank under the bed. There is no evidence of any leaks either from the fuel tank or the engine so I am mystified as to where the odor is coming from and how to stop it. Ideas?
Diesel Fuel Odor in Aft Cabin
- Thread starter marcomondo
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Breather
Check the breather hose. In fact check all the hoses in and out. How old are they? Any leaks at the engine?
Check the breather hose. In fact check all the hoses in and out. How old are they? Any leaks at the engine?
Leak!
Check the fuel filter under Aft Cabin bunk. Check the primary filter at the engine. Try to track down the problem with your noise.
Check the fuel filter under Aft Cabin bunk. Check the primary filter at the engine. Try to track down the problem with your noise.
I had a similar problem on a prior boat...
that was ultimately traced to a fuel line bleed screw that had an extremely tiny seep of diesel, just enough to provide the diesel odor. Only found the fuel leak by wipeing the fuel line with a white cloth.
that was ultimately traced to a fuel line bleed screw that had an extremely tiny seep of diesel, just enough to provide the diesel odor. Only found the fuel leak by wipeing the fuel line with a white cloth.
I found my source of odor
I just bought a Catalina 30. I noted a diesel odor. the boat had been closed up for a year on the hard. The cushions had the odor as well. I finally traced it to the fule tank breather hose. Someone had used an automotive type heater hose to run from the tank vent to the outboard vent mounted in the transom. I found the hose real soft. However, it did not leak and it looked good to the eye. After I removed it, I found the inner rubber liner soaked with fuel. It dripped fuel when removed and hanging down. I replaced it with good quality plastic hose used for marine environment. I may yet replace that with hose rated for fuel handling. The odor is now gone.
I just bought a Catalina 30. I noted a diesel odor. the boat had been closed up for a year on the hard. The cushions had the odor as well. I finally traced it to the fule tank breather hose. Someone had used an automotive type heater hose to run from the tank vent to the outboard vent mounted in the transom. I found the hose real soft. However, it did not leak and it looked good to the eye. After I removed it, I found the inner rubber liner soaked with fuel. It dripped fuel when removed and hanging down. I replaced it with good quality plastic hose used for marine environment. I may yet replace that with hose rated for fuel handling. The odor is now gone.
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