1984 Mercedes 300D - Engine Problems

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Nathan Kimzey Active Contributor Join Date: Feb 2009 Posts: 17	1984 Mercedes 300D - Engine Problems 01/27/2010 4:15 PM
	i need to know what those little black rubber stoppers are called? on the fith fuel injector mine is leaking feul through the rubber ... but of course its the original
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Everenlightened Commentator Join Date: Oct 2009 Location: Raleigh, North Carolina, US Posts: 60 Good Answers: 5	#1 Re: 1984 Mercedes 300D - Engine Problems 01/27/2010 4:32 PM
	Without a picture or diagram I can't be sure, but it sounds like you are describing what is typically called a fuel injector grommett. If one has deteriorated to the point of leaking they all should be replaced. I've never dealt with diesel engines, but on most gasoline engines they are very easy to replace. With diesel I'm not sure if they may be manufactured as an integral part of the injector due to the very high pressure of the fuel at that point. Hope this helps. -T __________________ You win some, you lose some, but with Cook-out you always win- Jacob Epps
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wrench Power-User Join Date: Dec 2005 Posts: 117 Good Answers: 2	#2 Re: 1984 Mercedes 300D - Engine Problems 01/28/2010 9:56 AM
	There are two nipples on each injector that allow fuel seepage from around the injector pintle to be returned to the injection pump. One end of one (1) injector is capped and the rest are connected in series to the unpressurized chamber of the pump. The circuit is not pressurized. The hose, cap and clamps, if used, are readily available, both from Mercedes and the aftermarket.
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