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What is this and what does it do?

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  #1  
Old 10-18-2010, 04:41 PM
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Default What is this and what does it do?

This is on the side of my 85 OM617 w/cali emissions, I put this motor in my Cherokee and deleted the emissions. This is not hooked up now and I am thinking it is limiting fuel/rack travel. Even with the ALDA adj screw all the way out I am getting no visible smoke no matter how hard I drive it. I hooked up an ohm meter to it and am not getting any reading change when moving the throttle. I am at the point of switching out the IP for a non cali IP. Any help would be great, thanks in advance! Here's some pics
 
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Old 10-24-2010, 11:07 AM
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Thanks for the info!
 
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Old 10-29-2010, 11:36 PM
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Read this about the ALDA screw.They are set and non adjustable,IIRC.
Oh $h!t I am an idiot
 
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Old 10-31-2010, 04:24 AM
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Originally Posted by ben2go
They are set and non adjustable
Nope. They are very easy to adjust, all you need is a 10mm wrench and a screwdriver. Doesn't mean you should adjust it though. The ALDA is one of the last things that should be touched after everything else has been maintained up to spec.
 

Last edited by ForcedInduction; 10-31-2010 at 08:31 PM.
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Old 10-31-2010, 09:40 AM
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That thing is sidemounted- looks like a KSB to me.Cold start accelerator.
It is available as electric and mechanical actuated version. It advances the injection point in direction early when the engine is started with a cold environment. This smoothens the engine run and allows better starting.can you check were the wiring is going to? Should lead to a coolant sensor.
I will check the imprinted bosch number.
 
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Old 10-31-2010, 11:15 AM
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Originally Posted by ForcedInduction

Nope. They are very easy to adjust, all you need is a 10m wrench and a screwdriver. Doesn't mean you should adjust it though. The ALDA is one of the last things that should be touched after everything else has been maintained up to spec.
FI to the rescue.

I must have mis read or misunderstood what I read.Don't most guys over on superturbodiesel forum remove their ALDA?
 
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Old 10-31-2010, 08:47 PM
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Originally Posted by Deezel Stink3r
That thing is sidemounted- looks like a KSB to me.Cold start accelerator.
Nope. Position sensor. It reads the direct position of the fuel rack to help the EGR computer determine how much exhaust to recirculate. The driver's foot has direct 1:1 control over fueling except at maximum RPM and low boost.

Don't most guys over on superturbodiesel forum remove their ALDA?
A few do but we have our engines at top health. After 20+ years of age and several hundred thousand miles, every vehicle needs some TLC. Cam timing, injection timing, injectors, transmission adjustments, among a host of other things to check/adjust.

The ALDA is two things, emissions control and overboost protection.
It reduces emissions by preventing excessive black smoke for people that drive aggressively. Those of us that remove it know our engine's capabilities and how to drive them to get the best results, the ALDA is for people that just want to get in and go.
It protects against a failed wastegate by giving the engine a way to reduce fueling (and as a relation, boost) to prevent engine damage from continued use post-failure. Again, those of us that remove it usually have accessory gauges (boost, pyrometer at the least), know the engine's limits and would notice something wrong when it feels/sounds unusual.
 
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Old 10-31-2010, 09:53 PM
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If I ever find another complete car,I'm gonna freshen'er up before final install.
 




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