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Replacing Muffler/exhaust line... '85 300D
My 300d's exhaust line snapped today while going over a speedhump.
Broke right under front seats. I've found some mufflers but have not figured out how to do the replacement. Is it as easy as it looks? There seems to be nothing holding it up but the muffler brackets and the connection at the downpipe. Am I missing (rusted out) a bracket in between? Is it just the muffler mounts and the single C bracket at the downpipe? [the fun of speed humps in the city and having an exhaust pipe hanging down pointing forward... POLE JUMP! I made it home due to the use of a CAT5 cable sling... ]
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OBK #32 1985 300D Turbo (15 gal Greasecar kit installed) (258,900+mi.) Thanks- Tachometer Fixed. Middle Vents Fixed. Transmission- 1000% better shifting. Vac leaks- Fixed, Brakes replaced, Steering Box replaced, .... Information Rules. |
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I bought replacements and took it to a muffler shop. They charged me 40 bucks to get it all put together. Worth it, if you ask me.
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Yes, the middle resonators are supported then the muffler past the down pipe.
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83 SD 84 CD |
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Scrap it and go to a 3" straight pipe that dumps right behind the front tire......
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$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment |
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haha, dude. that would waaay too loud and you'd lose power after like, 3000rpm. trust me, tried it with my 190e 16v. doesn't work too well. unless that's not what i think you meant
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I had the exhaust redone on the SD, you should be able to see the pipe straight back to an Ansa muffler.
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83 SD 84 CD |
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Just talked to Phil-
He helped me realize that I am missing my Center Muffler. I'm going to replace it, But I am curious why it would have been removed and what effects I may notice with one on...
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OBK #32 1985 300D Turbo (15 gal Greasecar kit installed) (258,900+mi.) Thanks- Tachometer Fixed. Middle Vents Fixed. Transmission- 1000% better shifting. Vac leaks- Fixed, Brakes replaced, Steering Box replaced, .... Information Rules. |
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The exhaust system on your 85 is 3 pieces. down pipe, center muffler section, and the rear muffler.
Very easy to hook up by your self. connect the two sections together, clamp loosley so it can be adjusted after mounting. set rear up on a jack stand. connect the front end to the down pipe. two long bolts and a flange. . leave a little loose. raise the rear muffler, and connect the 4 rubber donuts. you might have to twist the center muffler to align things so it doesn`t bump against the body. clamp the center. then tighten the front section to the down pipe. the center muffler could be eliminated and just use the rear section w/o any additional noise. no need to pay someone to install it. this is a DIY Forum I think . Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
#9
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I am not sure how true is this statement. If I read the forum correctly, quite a few members use indy or stealership. I, for one, would do this muffler job.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
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I replaced my muffler and would say that it was not much harder than working with legos. On mine I was replacing the original muffler so I had to cut the pipe going back from the center resonator, as it appeared to me that the original equipment was one piece from where it clamps to the down pipe, all the way back to the tail pipe.
I found that the muffler clamps available at the auto parts stores did not fill very well so ended up ordering one from this site. I should have done that when I ordered the muffler. Make sure you leave adequate space where the muffler bumps up against the body at the rear of the car, otherwise you will hear it, well, bumping up against the body at the rear of the car. Anyway, I would say that it was a very easy job on the difficulty scale.
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85 300D 75K Anthracite Grey 0-60 in 13 seconds **For Sale** 84 300D 333K Black (The Velveteen Rabbit) 0-60 in 14 seconds 00 Toyota Sienna 208K (Sold) 15 Subaru Outback 43K 11 Subaru Outback 67K 98 Ford Taurus 100K (Gertie - Was Grandma's - drove it to church and shopping - really) Daughter's car now. 30 Model A Ford 2 Door Sedan (Sold) 0-60 in . . . Never reached 60 |
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Quote:
i dont think you would lose much if any HP. if you did it would be in the lower rpm range would wager and would bet that it would be 5hp or less.i will take a mild hp loss down low for mild up top gain anyday on a passenger car. turbo wants to exhale more than that 16v does if compression is good. go read about the guys modding there turbo diesel trucks and straight piping it. |
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Dont straight pipe, unless you like a horrid bass vibration like drone noise at 1500 to 2000 RPM I would just take out that resinator and leave the muffler in.
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Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi |
#13
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All three pieces of my exhaust (well four including the snapped bit)
are welded and too rusty to mess with. How hard is it to replace the down pipe? I cant get a look at it very well in the street and can't really tell what I'm dealing with yet. Would like to get an idea...
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OBK #32 1985 300D Turbo (15 gal Greasecar kit installed) (258,900+mi.) Thanks- Tachometer Fixed. Middle Vents Fixed. Transmission- 1000% better shifting. Vac leaks- Fixed, Brakes replaced, Steering Box replaced, .... Information Rules. |
#14
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Down pipe is a piece of cake.
Three copper nuts connect it to the turbo. 12mm One clamp that mounts it to the transmission bracket. 12mm Two long bolts hold the rear section to the down pipe. 14mm & 12mm spray some penetrating oil on the nuts at the turbo end before cranking on them. let it soak in good. You don`t want to snapp off the studs. PB Blaster is worshipped here a lot, I have good results with Kroil. Might have to use a drift to. whang on the edge of the down pipe to dislodge it from the turbo,........ after the nuts are removed. After everything is loosened up, don`t grab the end of the Down Pipe and try to wiggle free the turbo end from under the car. The flex piece in between can get fragile and crack ...... been there, done that . Also use Anti-Seiz compound on the fasteners when replacing things. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works |
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I didn't replace the center resonators on mine, added weight and cost. The engine is somewhat louder, yet hardly obtrusive, the muffler does it's job.
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83 SD 84 CD |
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