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#1
07-02-2014, 12:53 AM
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Adjusting ALDA back to stock location.
Today I noticed that the ol' 300 is blowing a ton of smoke during kick down. I drowned out an old Buick.
I checked the set screw on the ALDA. It will not turn counter clockwise at all, so I believe someone in the past has gone crazy and adjusted it all the way out. I've heard that you can only adjust the ALDA 2 full turns out, so would turning it 2 full turns clock wise bring me back to the stock location? 
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#2
07-02-2014, 06:56 AM
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Not necessarily. The setting was optimized when car was produced but has certainly needed adjusting since then (though not as much as has evidently been done). I think your best bet is to adjust and test in small increments....say 1/4 turn at at time. Find that sweet spot where the black smoke just barely goes away.
Or leave as is and just manage things with your foot.
__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles 06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 77k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife Last edited by shertex; 07-02-2014 at 07:19 PM.
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#3
07-02-2014, 11:10 AM
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I never notice smoke trailing behind my 300D even after removal of the alda.
__________________
85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#5
07-02-2014, 11:47 AM
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Quote:
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked
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#6
07-02-2014, 06:29 PM
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Quote:
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#7
07-02-2014, 07:08 PM
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Sure anything you say WM. Does it smoke? Not from the drivers perspective. Is it visible from a following car? Maybe.
It runs normal, will cruise at 75-80 if I ask it to. Max is over 100, Boost will go over 14psi if I disconnect the regulator (I have it regulated to 11) Boosts to about 5psi a 60. MPG is 28-30 most fills. Quote:
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#8
07-02-2014, 07:12 PM
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funola, Why do you think that is? I have blocked off the ARV and the EGR besides removing the ALDA. The drivability is improved 100%. Before it wouldn't boost below 60 mph. The ARV was inhibiting it.
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#9
07-15-2014, 12:45 PM
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Quote:
__________________
85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked
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#10
07-15-2014, 03:21 PM
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I heard the ARV was to keep the boost low until the EGR wasn't open and the engine was operating in the more efficient state. Basically the ARV is a anti-smog device.
I too removed all the ARV and EGR lines and electrical bits. The EGR and possibly the ARV had vacuum leaks and since NLA my only option. Man what a difference on performance! Removing the ALDA not only improves power, but also improves efficiency (20ish versus 34M.P.G (best)/25M.P.G. (average).). I was told it help on stand still acceleration to have it, but just made things worse. Right now the ECU isn't operating, so if that has no affect, then going back to no ALDA. Hope this helps.
__________________
Current fleet: 1985 Mercedes-Benz 280TE - Waiting for heart surgery. 1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home. 1979 Mercedes-Benz 300TD - Parted out. 1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration. 1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration. 1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.
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