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#1
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Why the hell it do that? 1993 300D injectors
I posted on the another thread about the rough idle smoky smelly exhaust and figured it has to be the injectors. I went to remove them the number one injector required a two foot extension to bust it loose. the number five was already loose and wobbling around the hole. the others weren't even tight. Do injectors rattle loose on their own? Also there was this plastic sleeve around the injectors that disintegrated with the slightest force. Do I need them? they look like something to protect the threads. |
#2
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What car?
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... ![]() 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod ![]() 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
#3
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MB 93 300D
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#4
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gonna put it in my sig
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1993 MB 300D 245K died. ![]() |
#5
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You do not need the plastic collars.
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Greg 2012 S350 BlueTEC 4Matic 2007 ML 320 CDI 2007 Leisure Travel Serenity 2006 Sprinter 432k 2005 E320 CDI 1998 SLK230 (teal) 1998 SLK230 (silver) 1996 E300D 99k, 30k on WVO Previous: 1983 240D, on WVO 1982 300D, on WVO 1983 300CD, on WVO 1986 300SDL 237k, 25k on WVO (Deerslayer) 1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix 1983 380 SEC w/603 diesel, 8k on WVO 1996 E300D 351k, 177k on WVO 2007 ML320 CDI .. / 2005 E320 CDI .../ 1998 SLK 230 .../ 1991 Daihatsu Rocky ![]() |
#6
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FYI
Quote:
It sounds like the injectors where not installed correctly. The heat shields must be replaced with NEW, before re-installing the injectors. .
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ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1980 240D 1983 300D 1984 190D |
#7
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would the improperly torqued injectors, particularly the loose tooth one cause me the rough idle and smoke grief?
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1993 MB 300D 245K died. ![]() |
#8
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Quote:
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1998 Ford F150 -My current Daily 1989 J-spec 420SEL Wife's Daily 1982 BMW 733i -fixed and traded for the 420SEL 2003 Volvo V70 5 Speed -scrapped 1997 E290 Turbo Diesel Wagon -traded for above, an amazingly comfortable car to drive, great drivetrain, but the rust, oh my god the rust 1992 BMW 525i -traded in 1990 Silver 300TE -hated the M103 1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one 1979 Silver 300D "The Silver Slug" -Sold |
#9
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well that sucks, I just spent 333 dollars on reman injectors when a retorque of the old one may have fixed it.
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1993 MB 300D 245K died. ![]() |
#10
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Even valves out of adjustment can cause rocking. I adjusted the 84SD this weekend and was amazed at the change. A couple were tight. The engine starts quicker and idles better.
Strange because the valves were adjusted not too ong ago. Other cars I've owned with solid lifters became loose, not tight. I wonder what's up.
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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. Probably up for sale in the fall 2020 still have it. 85TD beginning to repair to DD status. Waiting on shop to do minor but more than I can do rust. |
#11
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He has hydraulic tappets...no adjustments. It is possible that a weak tappet is causing the shake, but I think the loose injectors are explanation enough.
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