so, this car (other than the sound, runs great)and has tons of power... doesn't consume much oil, does not have excessive blowby.... what is this sound?

http://www.youtube.com/watch?v=KstzHKEDwSc

nothin'

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Bad injector and the idle is too high.

swapped injectors with known good ones, didn't go away.

i recently adjusted my valves and a very similar sound went away

and whats up with that idle?

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the idle is set at 750 as far as I can tell. And I just did a valve adjustment (hoping the sound would go away)

sounds normal to me.

you do know its a diesel, correct?

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

are they supposed to be that loud??? I hear other MB diesels drive by all the time, and they purr like a kitten, this one has a nasty knock sound to it...

yes, I know its a diesel, I have swapped the injectors, adjusted the valves, changed the oil, fuel filters (valves had been neglected) check the chain, basically did some maintenance... I can't get this sound to go away..

thats because it won't go away. Its a old 617. Look for other video's on youtube.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

I had given up hope that the nosie would go away, just curious what it was... no big deal, the engine has oil pressure so "run it" and call it a day I guess.

allmost sounds like a rod...

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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.

I thought it was a rod at first as well, but I have been driving it for three weeks, and no ill effects... So I don't think its a rod...Unless a rod could be bent for a long time, and not eat bearings. I'm not sure with these old MB diesels, I don't know that much about them.

its possible to have a very slightly bent rod and have it just "tap" the cylinder wall on each revolution. i would take the injector out of that hole and start the engine, if the noise is still there then you have a bent rod simple as that.

__________________
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.

guess i'm gonna keep on drivin it, the car is very nice to drive, and no one wants to buy it... either way I have another good motor for it in my garage so if it goes bad, its no big deal. Thanks to all who chimed in, wouldn't mind hearin some other opinions though.

The last one I had that sounded like that, started making that noise and an hour later punched holes in both sides of the block

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350