I noticed that a bit of diesel fuel is leaking near the injectors. Fairly confident the return fuel lines are not to blame. Should I pull the injector and check the "crush washer"? Anyone with a similar experience? Thanks in advance.

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1985 300 D T - Rauchsilber (Smoke Sliver Metallic) with MB Tex Quartz 155 = Cream interior - 320K and counting!

1999 E300 TD - Silver - Just got her 3-13-15 !

the 2nd '83 300SD - Brown Metallic - traded away

1985 Limo Diesel aka "Stretchy" - Sliver - Blue Int - Sold but still in Athens

1983 300SD - Brown Metallic - Sold April 2008

1982 300 D T - Royal Blue with Tan interior - Sold

A diesel leak up their is either the return lines or you hard pressure lines. You would know if one of the pressure lines was leaking the car would run like crap. Check your return lines again I bet their the problem. My car did the same thing, I thought fuel was leaking up around the injector it turned out a return line was leaking.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

where th' tang of th' prechamber orients in th' head so's to allow us to get th' glo plug through there. Th' heat shield(that folks are calling a crush washer - & maybe it is but I don't think so) had carbon gumming up about half th' circumference where th' injector seats down into said shield. When th' injectors are tightened down, they are sitting on top of th' hard carbon and fuel leaks thru th' gap and up thru th' threads of th' collar that holds th' prechamber in. I cleaned up some from an '83 and installed them - no more leak.

Noticed th' hole in th' '83 shields was smaller than th' '77 but things seem ok when running. If anyone knows any reason not to leave them in there - holler back....

Glow plugs work a whole lot better if you hook th' resistors up correctly! If you hook every thing up on th' outside of th' insulators, th' engine will not start....

Jim

The...

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

If you pull the injector and replace the seal, DO NOT overtighten it. Check the book, but I believe the torque spec is 32 lbs. Always use a torque wrench.

Just noticed yesterday after driving on the highway for 25 minutes that a little bit of smoke was coming out of my hood after I arrived at my destination. I opened the hood and noticed that two of my injectors were wet. While running, one of them actually looks like it was leaking. There were some hoses on the injectors which were all wet (I guess they are the return lines some people here are referring to). I guess I'll have to start by replacing them. I wouldn't expect my injectors to start giving in at such "low" mileage - 156,561miles (I've read about people with over 300,000 miles on their original injectors).

Anything else I should know?

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1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver

It is interesting that the poster of this used exactly the same number of keystrokes as he would have if he used the word "the", not his abbreviation "th'"

HA HA HA Good observation!!

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1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver

When I had this problem I had to replace the injector.
The leak was coming from the threads in the middle of the injector where they screw together.
I tried to seal it but it didn't work. Replacing it was super easy anyway.

Danny