hi guys,feel a little embarrassed for having to ask this,but the reality of it is that i have never dealt with the alda valve. My past two MB"s have been non turbos,and i was always under the impression that NA engines did not have the elusive alda valve,is this correct? and what exactly does this thing do?
is the valve that dash pot looking thing that is on top of the IP? because i do have one of those on my 240. anyway,always wondered and have read many threads about the ALDA,guess i have had too much time to think about the 240 today,so i thought i would ask

__________________
1980 mercedes euro 300D 232000 miles(died,now parts car)
2004 2500 ram cummins diesel
1980 harley shovelhead
1988 anniversery corvette zr1(engine)
1978 240D 4spd 240000 miles (new benz toy)
1946 Cessna 140, Continental 0-200

If you have a naturally aspirated engine, you have an "ADA". This device will regulate the fuel based upon ambient pressure. The higher you go, the lower the pressure, the less the fuel provided.

The "ALDA" does the same thing as the "ADA", however, it also provides for additional fuel for turbocharged vehicles when they get into boost from the turbo. The turbo causes a climb in the manifold pressure and the ALDA advances the rack to provide additional fuel to take advantage of the additional air.

so is this ADA adjustable on the NA engines? ie.....will adding additional fuel help or increase performance in any way? if so how is it adjusted?

__________________
1980 mercedes euro 300D 232000 miles(died,now parts car)
2004 2500 ram cummins diesel
1980 harley shovelhead
1988 anniversery corvette zr1(engine)
1978 240D 4spd 240000 miles (new benz toy)
1946 Cessna 140, Continental 0-200

AFAIK, it is not adjustable by the user........but.......I don't have any experience with them.

They should have an adjusting screw just like a turbo ALDA. CCW on the screw should work too. You just won't get as much out of it as a turbo engine would.

Don't make too much smoke or you will pay for the small extra power in poor MPG.
EDIT:

thanks for the info,good picture......but where exactly is the alda (ada) and the adjusting screw?

__________________
1980 mercedes euro 300D 232000 miles(died,now parts car)
2004 2500 ram cummins diesel
1980 harley shovelhead
1988 anniversery corvette zr1(engine)
1978 240D 4spd 240000 miles (new benz toy)
1946 Cessna 140, Continental 0-200

I want to know whay I am limited to 65kb picture size
and ForcedInduction was able to load a 86kb picture ??

Attached Thumbnails

 

__________________
80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
00 Harley Sportster 24k
09 Yamaha R6
03 Ninja 250

FI didn't load the picture. He found it on the web on another server.......in this case.......e-bay.

M-Shop limits the photos to 66Kb.........but other servers don't.

If you have photos that are larger than 66kB, you can use a photo hosting service such as Image Shack. No cost to do this and it works very well.

It's a nice little trick. 58kb is such a restriction, not much can be in a photo.

i dont seem to have that one encircled in the picture... i have a 79 300TD NA.



what gives??

(by the way.. pix was taken back in 2002.. the engine bay now looks better and the fluids are newer.. haahah)

__________________
Mike

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1975 200 - Sold (no pix);
1978 200 - Sold - http://www.pbase.com/hboy/redbaron
1979 300TD - Sold
http://www.pbase.com/hboy/greenwagon
http://www.geocities.com/hboy726/300TD.html
1985 230E - now my daily driver...