Re: [diesel_mercedes] Alda Adjustment ?

 

Don't know who wrote this for the list.

A counter clockwise turn on the screw moves the
diaphragm up (just like extra air pressure would) and causes it to
provide more fuel to the engine.  Conversely, a clockwise turn on the
adj. screw, forces the diaphragm down and it provides less fuel to the
engine.

This ALDA thing is there because these cars are mechanically
fuel-injected, not electronically injected...  There's no computer
(with its requisite air pressure and temp sensors and O2 sensors) to
regulate the fuel flow for the best air-to-fuel ratio, so there has
to be a mechanical way of "measuring" the air in the intake
manifold.  The ALDA is what does that.  Whether its actually called
an ALDA or not on the non-turbo models is beside the point....

--
Stan George: Portland <<

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[diesel_mercedes] Alda Adjustment ?

 



So then ;

No one here knows which way to turn the screw ? .

Damn .

A guy here in L.A. has a W123 300TD greymarket with a column shift for $4,000 .

-Nate

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Re: [diesel_mercedes] Alda Adjustment ?

 

I still have two great running 240's for sale.. Both have strong engines, I am second owner of one and third of the other(car went from a father to son to me), both California  cars. Both could be driven to NY and back with just a little common sense check over's. Why buy a piece of shit when you can buy good running cars for cheap? Max

On Fri, Aug 31, 2018 at 7:57 AM, vwnate1@yahoo.com [diesel_mercedes] <diesel_mercedes@yahoogroups.com> wrote:



O.K., I replaced the secondary and return line fuel filters last night, I pre filled the secondary (spin on) filter with Biobor, lit it off and revved the engine a bit to clear out any air bubbles, the car now idles pretty smoothly and runs like a scalded cat as it used to years ago .

I got 415 miles before the low fuel lamp went on and filled up at 440 miles, adding more Biobor to the tank as a

prophylactic measure .


To - day's question is ? with way to turn the ALDA adjusting screw to lean it out a little bit ? .


The fuel economy remains low @ 23.1 MPG's, this injection pump came off a very clean wrecked 1985 300SD and the ALDA has clearly been touched before ~ maybe someone richened it up to make that big heavy car faster .


I remember some here fiddled with this a while back and said a 1/16th turn of the adjuster screw made a big difference ~ I'm pleased with how well the car runs now (80MPH @ 1/4 throttle) but it's still smkin more than I want along with low fuel economy .


Thoughts ? .


TIA,


-Nate




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[diesel_mercedes] Alda Adjustment ?

 


O.K., I replaced the secondary and return line fuel filters last night, I pre filled the secondary (spin on) filter with Biobor, lit it off and revved the engine a bit to clear out any air bubbles, the car now idles pretty smoothly and runs like a scalded cat as it used to years ago .

I got 415 miles before the low fuel lamp went on and filled up at 440 miles, adding more Biobor to the tank as a

prophylactic measure .


To - day's question is ? with way to turn the ALDA adjusting screw to lean it out a little bit ? .


The fuel economy remains low @ 23.1 MPG's, this injection pump came off a very clean wrecked 1985 300SD and the ALDA has clearly been touched before ~ maybe someone richened it up to make that big heavy car faster .


I remember some here fiddled with this a while back and said a 1/16th turn of the adjuster screw made a big difference ~ I'm pleased with how well the car runs now (80MPH @ 1/4 throttle) but it's still smkin more than I want along with low fuel economy .


Thoughts ? .


TIA,


-Nate

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Re: [diesel_mercedes] My turn to be stupid

 

On 8/30/2018 9:27 PM, MARK BRAUER beeser@comcast.net [diesel_mercedes] wrote:
 

Could be the gasoline cleaned out a pre-chamber, or cleared up an injector spray pattern, or freed up some gummy rings, or cleaned off some valves....  Or any combination of the above.


My thoughts exactly.
--   Mark L. Bardenwerper, Sr.  Technology...responsibly, thoughtfully

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