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#1
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alda or ada adjustment
okay everyone is turning their aldas adas or whatever up for more fuel but no one has ever mentioned ever turning that famous screw back. it could really help with fuel economy if you dont mind dbeing run off the road occasionally. is running a little lean bad for a diesel? does anyone know what would happen if you turned the screw back for less instead of forward for more? just having brain farts today so i just am wondering if anyone has ever considered this approach to tuning.
bye |
#2
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You can't run lean on a diesel, you just get less power. The engine speed is controlled only by the amount of fuel.
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1977 300D Lost coolant while someone else was driving 1983 300D Can't run without oil 1985 300SD (gone but not forgotten) 1990 300TE 4matic Sold 1991 Yamaha Venture 1975 Kawsaki 250 triple 1974 Honda 200CL 1951 8N Ford 2008 Wildfire 650C |
#3
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Fine tuning the alda to match minimum smoke and maximum power would be about the best you could do. This would also involve tweaking the turbo wastegate for different pressures. I have seen here, on this forum, a setup that allowed finer adjustments over pressure control. (Not sure if it is still around since the server problems though.)
Someone recently had an interesting idea in tuning for maximum efficiency by fine tuning the IP timing by measuring the voltage, millivolts, put out by the glow plugs. You would probably need to disconnect the cable at the relay. This might be something worthwhile investigating. It would take many different tweaks, with a lot of documentation, to see what adjustments would increase efficiency.
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Sam 84 300SD 350K+ miles ( Blue Belle ) |
#4
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I turned mine back a couple of turns just to see what would happen since the cap was already off. I was wondering if someone might have already tried to max it out.
The car barley went anywhere, and that was flooring it too. I would say to turn it up, and just ease off the pedal if you want to save on fuel.
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B - 1983 300SD |
#5
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where is this alda
where is this thing located at... i have an 1983 300sd
where would i find the alda... |
#6
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The ALDA is the square edged device atop the IP.
Sixto 87 300SDL |
#7
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CCW for more fuel, CW for less fuel.
Sixto 87 300SDL |
#8
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Quote:
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-Randy Wakefield 1969 220D 4 speed (parts car) 1976 280C 1976 280S 1981 240D 4 speed (parts car) 1982 300D 1983 300TD (Ivory) 1983 300TD (gold) 1985 300TD (gray) 1987 190D 2.5 1970 280SEL (sold) 1977 240D 4 speed (sold) 1974 280 (rusted to death) --- 1927 Chevy 4 door sedan 1938 Chevy 2 door sedan 1950 Willys Jeepster 1955 Studebaker President 4 door 1977 Ford F250 1979 Glastron 17' 1948 John Deere A 1960 John Deere 2010 1979 Satoh S650G -- 2000 Bichon (Doby) |
#9
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what is the ip
what is the ip..
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#10
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Injection pump.
I need to find either a much lower mileage car in a yard to get an alda off of or find a place that sells them new. I just replaced mine with the 276k one from my wagon, its better than my leaking one, but still doesn't compare to the original one before it started leaking.
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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 |
#11
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Johnhef,
This article should interest you if you have a leaking alda:http://engine.articles.mbz.org/diesel/alda/ Had a problem with mine leaking in the past but since cleaning and resealing, it is working fine. Once you open it up, the alda is not such a mystery component after all.
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Sam 84 300SD 350K+ miles ( Blue Belle ) |
#12
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Thanks for the link, that was helpful. I couldn't tell from the small pics though, is the smaller seal anything special or should I be able to match it up to a similar sized o-ring?
I would like to see exactly where those copper rings he mentioned were sitting, as I've hit the end of adjustment on mine and still not a hint of smoke.
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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 |
#13
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Quote:
I got one from him for a spare as the one with my spare IP was defective... I think he referes to the copper washers that fit between the Alda and the IP housing....they usually stick up under the ALda due to surface tension of the oil...in fact I am cerain of it. looks like a crush washer but are in various thicknesses...
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#14
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under normal circomstances (which arent very normal, since I cannot spell it ) what is the ALDA used for? Is it the altidude adjusment, or what? and would a 76 300d have one?
Thanks alot ~Nate |
#15
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Quote:
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Palangi 2004 C240 Wagon 203.261 Baby Benz 2008 ML320 CDI Highway Cruiser 2006 Toyota Prius, Saving the Planet @ 48 mpg 2000 F-150, Destroying the Planet @ 20 mpg TRUMP .......... WHITEHOUSE HILLARY .........JAILHOUSE BERNIE .......... NUTHOUSE 0BAMA .......... OUTHOUSE |
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