300d alda adjust

[joro]

Does anyone here have a tutorial or instructions on how to open the Alda on a 617 engine?
I saw my friend do his kinda fast but i couldnt get the details of the procedure,i basically saw him open the alda using 2 wrenches(sizes unknown) then he placed a very thin washer inside,i do not know what were those wrench sizes and the washer size,i do know his car goes way faster now.
Someone please??

[hoborobot69]

read everything you can find by searching this forum about this subject, and then ponder if you really want to do this and know the pros and cons, it would suck to take some bad info and destroy your engine. Knowlage is power.

The ALDA is the last thing that should be adjusted on the engine. Only after everything else is properly adjusted and working as it was designed should you consider altering the ALDA.

[joro]

As it was designed?? exactly what i dont want,these cars were very slow when new,i do not want that.
Im just looing for specific information relating to the procedure.
Anyone??

Originally Posted by joro

As it was designed?? exactly what i dont want,these cars were very slow when new,i do not want that.

"As designed" meaning that time, wear and neglect has left most all these cars slower than they should be and they are no longer running right. Getting everything working correctly first is exactly what you should do before you ever consider changing things from stock.

Adjusting the ALDA is just a bandaid to cover up other problems that need to be fixed. If everything is working properly then adjusting the ADLA should only increase black smoke out the tailpipe. If you adjust it and there is a major gain in acceleration then your engine/injection pump has a big problem.

[Brian Carlton]

Originally Posted by joro

As it was designed?? exactly what i dont want,these cars were very slow when new,i do not want that.
Im just looing for specific information relating to the procedure.
Anyone??

It's a fairly common problem for the IP to provide less fuel as the components wear and adjusting the ALDA is a perfectly acceptable procedure despite some of the arrogant comment that you've been getting on here. In fact, the individual making the comments doesn't even have an ALDA on his vehicle.

So, let's get to it:

On the top of the ALDA is a locknut and an adjusting screw (provided that you don't have a virgin alda with these components sealed inside a sheet metal can).

Loosen the locknut and carefully turn the adjusting screw 1/2 turn counterclockwise. I'm quite deliberate with the word "carefully" because the screw might be somewhat stuck after 20 years and you don't want to force it. If you force it and snap off the slot at the top............the game is over. So, add some penetrating oil if necessary and take your time.

After you make the adjustment, take the vehicle for a drive and see if you get any smoke a full pedal and low rpm's. If you don't, then repeat the procedure for another 1/2 turn. Same test. By the third adjustment (1 1/2 turns) there should definitley be visible smoke on takeoff. You'll be wasting a touch of fuel at that point but you can leave it there if you don't routimely mash the pedal from a standing start.

It's a fairly common problem for the IP to provide less fuel as the components wear

That means its time for a pump rebuild or to get it re-tuned on a flow bench.

Originally Posted by Brian Carlton

In fact, the individual making the comments doesn't even have an ALDA on his vehicle.

Please post the CORRECT information, I have removed my ALDA. This was only AFTER I got the engine into proper spec AND installed a turbo that provides substantially more air at lower RPMs than the stock turbo.

Why must everyone be so confrontational today? (Not just on this forum) People ask what to do and I tell them the correct way to do it. Their response? "NO! I wanna do it the lazy/quick/easy/shortcut/cheap/shade-tree/ricer way just because you said not to, so there! "

There really ARE important things that need to be checked/adjusted before touching the ALDA.

Valve adjustment
Linkage adjustment/travel
Linkage bushings
Banjo bolt
Wastegate hose condition
Overboost protection system
Boost pressure
Injector spray pattern/pop pressure
Vacuum system operation
etc.

Adjusting the ALDA before that can mask any or all of those common problems. Once all those areas have been covered is when the ALDA should be adjusted.

[winmutt]

Hope you have a block warmer

[RAYMOND485]

1984 300d turbo 147k
pull the line off the alda and do a 10 psi pressure test for leaks use fuel gage and pressure from a vacuum hand pump top is pressure used a small rubber washer for botton inside alda