When motoring there is an overwhelming diesel fume smell. Has anyone else experienced this problem? Any thoughts or suggestions?
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When motoring there is an overwhelming diesel fume smell. Has anyone else experienced this problem? Any thoughts or suggestions?
Fuel Leak
If you're smelling raw fuel, you've likely got a leak, which MUST be repaired. Leaks in the suction side of the fuel system will likely “weep”. Leaks in the high pressure side will “spray” (very dangerous !). Often, leaks in the low pressure side will leak when when the engine is stopped, and suck air into the fuel when running. This might cause rough running, loss of power, & stalling. Another common problem is that the return line is not put back into the top of the fuel tank. If it is connected back into the fuel feed line, the fuel may become aerated. The copper washers on the lift pump banjo fittings often leak if disturbed and must be replaced each time. The o-ring on the engine fuel filter is also a source of leaks if not fitted properly, and the bleed screws can easily be stripped. Copper fuel pipe can work harden, and develop small fractures (hairline cracks). Fuel lines should be well supported with cushioned clamped (not greater than 12" spacings), and glands should not be overtightened. HTH, Gord
If you're smelling raw fuel, you've likely got a leak, which MUST be repaired. Leaks in the suction side of the fuel system will likely “weep”. Leaks in the high pressure side will “spray” (very dangerous !). Often, leaks in the low pressure side will leak when when the engine is stopped, and suck air into the fuel when running. This might cause rough running, loss of power, & stalling. Another common problem is that the return line is not put back into the top of the fuel tank. If it is connected back into the fuel feed line, the fuel may become aerated. The copper washers on the lift pump banjo fittings often leak if disturbed and must be replaced each time. The o-ring on the engine fuel filter is also a source of leaks if not fitted properly, and the bleed screws can easily be stripped. Copper fuel pipe can work harden, and develop small fractures (hairline cracks). Fuel lines should be well supported with cushioned clamped (not greater than 12" spacings), and glands should not be overtightened. HTH, Gord
Fuel Leak
If you're smelling raw fuel, you've likely got a leak, which MUST be repaired. Leaks in the suction side of the fuel system will likely “weep”. Leaks in the high pressure side will “spray” (very dangerous !). Often, leaks in the low pressure side will leak when when the engine is stopped, and suck air into the fuel when running. This might cause rough running, loss of power, & stalling. Another common problem is that the return line is not put back into the top of the fuel tank. If it is connected back into the fuel feed line, the fuel may become aerated. The copper washers on the lift pump banjo fittings often leak if disturbed and must be replaced each time. The o-ring on the engine fuel filter is also a source of leaks if not fitted properly, and the bleed screws can easily be stripped. Copper fuel pipe can work harden, and develop small fractures (hairline cracks). Fuel lines should be well supported with cushioned clamped (not greater than 12" spacings), and glands should not be overtightened. HTH, Gord
If you're smelling raw fuel, you've likely got a leak, which MUST be repaired. Leaks in the suction side of the fuel system will likely “weep”. Leaks in the high pressure side will “spray” (very dangerous !). Often, leaks in the low pressure side will leak when when the engine is stopped, and suck air into the fuel when running. This might cause rough running, loss of power, & stalling. Another common problem is that the return line is not put back into the top of the fuel tank. If it is connected back into the fuel feed line, the fuel may become aerated. The copper washers on the lift pump banjo fittings often leak if disturbed and must be replaced each time. The o-ring on the engine fuel filter is also a source of leaks if not fitted properly, and the bleed screws can easily be stripped. Copper fuel pipe can work harden, and develop small fractures (hairline cracks). Fuel lines should be well supported with cushioned clamped (not greater than 12" spacings), and glands should not be overtightened. HTH, Gord
not raw fuel smell
Gord, Thanks for the response. We are not experiencing a raw fuel smell, more exhaust fumes. Any thoughts there?
Gord, Thanks for the response. We are not experiencing a raw fuel smell, more exhaust fumes. Any thoughts there?
not raw fuel smell
Gord, Thanks for the response. We are not experiencing a raw fuel smell, more exhaust fumes. Any thoughts there?
Gord, Thanks for the response. We are not experiencing a raw fuel smell, more exhaust fumes. Any thoughts there?
Exhaust Fumes
Exhaust fumes might suggest an exhaust leak
Goto a short tutorial at Cruisers Forum: http://cruisersforum.com/index.php?referreid=79 Specifically, "Exhaust System Maintenance" (under 'Engines'): http://cruisersforum.com/showthread.php?s=&threadid=1281 HTH, Gord
Exhaust fumes might suggest an exhaust leak
Goto a short tutorial at Cruisers Forum: http://cruisersforum.com/index.php?referreid=79 Specifically, "Exhaust System Maintenance" (under 'Engines'): http://cruisersforum.com/showthread.php?s=&threadid=1281 HTH, Gord- Status