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#1
12-27-2010, 09:47 AM
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Fuel Leak 300sdl
Good Morning all,
Hope the East Coast Blizzard is not affecting too many members. I have noticed a smell of diesel fuel under the hood on my 86 300sdl. It is more evident now that I have all of my encapsulation panels installed on the car. All fuel lines are fine, no leaks there. I did find fuel bubbling at the base of injector number 4. It is not leaking from the fuel line or the return line. It is bubbling up where the injector is screwed into the head. Is this as simple as undo the fuel line and return hose, remove the injector and replace the heat shield? Thanks for the input, and try and stay warm.
__________________
John 1986 300sdl 1985 380se 
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#2
12-27-2010, 09:56 AM
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the fuel usually doesn't leak from inside the combustion chamber... if you see bubbles there, the leak is pooling fuel there, and combustion chamber gasses are bubbling up through it. changing the shield will stop the bubbles, but not the fuel. best thing is clean really well, remove all traces of oil and fuel, and start the car and look for the leak.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#4
01-02-2011, 11:36 AM
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UPDATE!!!
It was my return lines weeping and leaking down onto the injectors. It was pooling at the base of each injector. I replaced all lines, and all is dry and well. I then looked over my maintenance records and realized I replaced these last in 2006. How time flies the older we get!!
__________________
John 1986 300sdl 1985 380se
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