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#1
10-18-2004, 03:21 AM
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Fuel Leak
I have a small fuel leak from what looks like the cloth wrapped hoses on the glow plugs. There isnt a power loss so I beleive these are the return lines back to the engine.
-I think the leak might be on more than one glow plug -I just recently changed the fuel filter so could I have put too much pressure in the system somehow? - Can I change the hose? and how... - Or is there a seal? This is on a 1983 Mercedes 300DT 5 cylinder 
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#2
10-18-2004, 07:54 AM
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As you suspected, the cloth hoses are fuel return lines. They are actually attached to the injectors, not the glow plugs. They will leak after with age. You can try simply pushing them down snug on the injectors, as they should touch the tops of the injectors. If they still leak, replace all the hoses. They are should by the meter, and one meter should be enough to replace them all. Just pull off the old ones (easier when the engine is still warm) and push new hose onto the port. There is no other seal.
These are low pressure lines, you did not bring this on by changing the fuel filter, but make sure you don't have any leaks there, too.
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Tjohn 82 300 SD 77 450 SL (gone)
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#3
10-18-2004, 08:57 AM
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Vacuum Hose
Please do NOT use vacuum hose to replace leaking over flow hoses. They are the wrong size and will not stand up to diesel fuel.
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1984 300D Turbo Sedan (Hilda) 272,115 miles.....  Anthracite Gray/Palamino Leather, I am 3rd owner 2001 Dodge Stratus (Silver) (wifes) 55814 miles... 1982 280TE Wagon Astral Silver Metallic/ Anthracite Velour 260,512 miles (Eva) 1969 230 Sedan Olive Green/Black MBTex 4 Speed Manual 84,213 miles ???? Haus Frau 2004 Boreem Ninja Pocket Bike Highly Modified 49cc (Ling Ling) Einigkeit und Recht und Freiheit
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#4
10-18-2004, 09:00 AM
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Quote:
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Tjohn 82 300 SD 77 450 SL (gone)
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#5
10-18-2004, 09:38 AM
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He he. That sounds like the voice of experience talking.
 To remove the old lines, pull them off with pliers. Avoid cutting them off because if you nick the barbs on the injectors, they will leak even with the new lines.
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Rick Miley 2014 Tesla Model S 2018 Tesla Model 3 2017 Nissan LEAF Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro Chain Elongation References
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#6
10-18-2004, 10:12 AM
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Quote:
He He. That sound like the voice of experience talking.  Dave Sorry, just had too
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1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD 1988 560SL, 100,000mi, owned since 1995 1965 Mustang Fastback Mileage Unknown(My sons) 1983 240D, 176,000mi (My daughers) owned since 2004 2007 Honda Accord EX-L I4 auto, the new daily driver 1985 300D 264,000mi Son's new daily driver.(sold) 2008 Hyundai Tiberon. Daughters new car
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#7
10-18-2004, 10:42 AM
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Yes, 5 years of experience on this board reading about other people's mistakes. Was fortunate enough to learn this one before I had to do it myself.
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Rick Miley 2014 Tesla Model S 2018 Tesla Model 3 2017 Nissan LEAF Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro Chain Elongation References
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