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Old 10-27-2005, 12:09 PM
Registered User
Join Date: Oct 2005
Location: Dayton, VA
Posts: 207
injector line leak

I have a 87 300 SDL with 18900 miles. I started to smell fuel the other day and have found a leak at the injector line.
It is spraying out between the line and the compresion nut. The nut seems snug so I do not want to over tighten it.
I backed the nut off and tightened it back down but it still sprays. Is the line bad? If so is there a good site someone could
recommend to but the line and other parts?
Thank you for your time

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Old 10-27-2005, 12:26 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153

on the early OM601/602/603 diesel motors the metal lines were fragile & broke all of the time. the replacement ones have been modified!
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Old 10-27-2005, 12:27 PM
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Join Date: Jan 2004
Location: Titusville, FL
Posts: 244
You need a new line

The fuel is spraying from a fatigue crack in your fuel line. Check to be sure that all the lines are cliped to their brackets. You can order a new line, clips and probable pads from Fastlane. Call them, as I don't think the individual lines show up in their online ordering system.
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Old 10-27-2005, 09:42 PM
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Join Date: Oct 2005
Location: Cali
Posts: 31
My 84 300 SD is leaking on the front injector. Not spraying, just slight leak onto head.Do I need a new line? Will it break and leave me stranded or will it just continue to leak? Any fire hazard?
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Old 10-27-2005, 09:54 PM
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Join Date: Nov 2002
Location: Milford, CT
Posts: 19,307
Replace the line. Fastlane/Phil can get you any Mercedes part you can come up with.

Overtime don't forget to check the drip return lines first. They will leak and cover the injector with fuel oil.

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