Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-02-2010, 07:43 PM
Registered User
 
Join Date: May 2010
Location: Austin, Texas
Posts: 241
If I remove ALDA...

if i remove the ADLA can i remove the over-boost and i just plug the intake manifold line where the banjo bolt is?

i ask because, i've run an engine without the ALDA and am currently and engine bypassing the over-boost by running it to the ALDA. so? i understand what both parts do and i want to know if i have to have at least one "regulator" on boost.

everything can go and i can plug the intake manifold or do i have to have something?

btw- i like removing crap i don't need.

Reply With Quote
  #2  
Old 10-02-2010, 07:49 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,841
If you have no ALDA there's no way to effect overboost protection. If you won't replace the ALDA, you should cap the intake manifold port.

Sixto
87 300D
Reply With Quote
  #3  
Old 10-02-2010, 10:44 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,835
the manifold pressure line tees into other devices, it's possible in addition to the alda, it affects other things. however, it might be just egr stuff, I don't know.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #4  
Old 10-03-2010, 12:21 AM
Registered User
 
Join Date: May 2010
Location: Austin, Texas
Posts: 241
Sixto- I didn't understand what you wrote. I have an ALDA, i bypassed the over-boost. Based on your comment I imagine you say that if i remove the ALDA with the over-boost bypassed then i should plug the manifold. Yes?

Vstech-you sure the manifold line goes to other things? (my EGR is gone) I was rather sure manifold line to over-boost, over-boost to ALDA. please let me know if this is wrong because if it is i obviously got my vacuum lines mixed up after i did my engine swap.
Reply With Quote
  #5  
Old 10-03-2010, 12:26 AM
Hit Man X's Avatar
I LOVE BRUNETTES
 
Join Date: Sep 2004
Location: FUNKYTOWN
Posts: 9,087
Thumbs up

If you are on a 603, I can take pics of my Federal '87MY one with all the emission stuff missing for testing purposes.

This includes: ALDA, EGR, ARV, etc. I have all vac lines rerouted so car starts properly, shuts off properly, HVAC operates properly, transmission shifts correctly, etc.
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
Reply With Quote
  #6  
Old 10-03-2010, 09:56 AM
toomany MBZ's Avatar
Registered User
 
Join Date: Nov 2006
Location: central Va
Posts: 7,820
That may depend on what car.
__________________
83 SD

84 CD
Reply With Quote
  #7  
Old 10-03-2010, 10:45 AM
Registered User
 
Join Date: May 2010
Location: Austin, Texas
Posts: 241
so sorry. keep for getting to ad it to my sig.


84 300D or OM617 turbo. 84 chasis and plumbing, 85 engine and transmission

no erg, removed the crud on the top of the valve cover, currently have over-boost bypassed to ALDA

btw- how do i add a signature?

Last edited by Manual Life; 10-03-2010 at 11:28 AM.
Reply With Quote
  #8  
Old 10-03-2010, 12:28 PM
toomany MBZ's Avatar
Registered User
 
Join Date: Nov 2006
Location: central Va
Posts: 7,820
Click on "User CP", you should be able to follow the prompts from there.

If you remove the ALDA, then the over boost protection is a moot point. Just plug off the pressure line as you see fit. The cleanest way would be to remove the banjo bolt on the manifold and simply screw in a regular bolt.
__________________
83 SD

84 CD
Reply With Quote
  #9  
Old 10-03-2010, 02:18 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,841
Quote:
Originally Posted by Manual Life View Post
Sixto- I didn't understand what you wrote. I have an ALDA, i bypassed the over-boost. Based on your comment I imagine you say that if i remove the ALDA with the over-boost bypassed then i should plug the manifold. Yes?

Vstech-you sure the manifold line goes to other things? (my EGR is gone) I was rather sure manifold line to over-boost, over-boost to ALDA. please let me know if this is wrong because if it is i obviously got my vacuum lines mixed up after i did my engine swap.
Yes, unless you have a boost signal to the transmission vacuum amplifier. Do you have one of those or does the VCV line go directly to the transmission modulator?
Reply With Quote
  #10  
Old 10-03-2010, 07:19 PM
Registered User
 
Join Date: May 2010
Location: Austin, Texas
Posts: 241
only line to the transmission is from the VCV, the top, not from the cabin vent. the 84 didn't have the wiring to install the 85 amplifier so i did without.

i'm happy with the results of bypassing the over-boost to the ALDA and will leave it that way for now because the ALDA doesn't want to break free.

my only real concern is if there IS a risk from remove the ALDA and plugging the manifold line. if there isn't a risk then i will plug the manifold and remove the ALDA after several cycles of lube and brake cleaner.

then, no ALDA and 2 less vacuum lines.
Reply With Quote
  #11  
Old 10-03-2010, 07:36 PM
toomany MBZ's Avatar
Registered User
 
Join Date: Nov 2006
Location: central Va
Posts: 7,820
Again, if you remove the ALDA you won't need the pressure line going to it. You can safely plug off that line as you see fit.

Merely being redundant, one more time.
__________________
83 SD

84 CD
Reply With Quote
  #12  
Old 10-03-2010, 10:12 PM
Registered User
 
Join Date: May 2010
Location: Austin, Texas
Posts: 241
Quote:
Originally Posted by toomany MBZ View Post
Again, if you remove the ALDA you won't need the pressure line going to it. You can safely plug off that line as you see fit.

Merely being redundant, one more time.
thought i was on the border of redundant. i admit it. i was being redundant. i was simply looking something specific like...

"you can remove both and plug the manifold and everything will be ok"

Last edited by Manual Life; 10-03-2010 at 10:24 PM.
Reply With Quote
  #13  
Old 10-03-2010, 10:16 PM
Registered User
 
Join Date: Nov 2005
Location: Iowa City, IA
Posts: 1,647
I'm anti Alda. Seen several fail, completely disabling the cars. But then again, that's how I got the cars so cheap. So I guess I'm happy mb put em on. Does anyone have one case where removing alda caused major damage? I've never encountered anything but theoretical worst case scenarios.
__________________
What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius
Reply With Quote
  #14  
Old 10-04-2010, 09:05 AM
babymog's Avatar
Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,765
Disabling in what way? I've bought several with clogged or otherwise in-op pressure lines from the intake through the switchover valve, made for a very slow freeway entrance, what have you experienced?
__________________

Gone to the dark side

- Jeff
Reply With Quote
  #15  
Old 10-04-2010, 09:48 AM
Registered User
 
Join Date: Nov 2005
Location: Iowa City, IA
Posts: 1,647
Quote:
Originally Posted by babymog View Post
Disabling in what way? I've bought several with clogged or otherwise in-op pressure lines from the intake through the switchover valve, made for a very slow freeway entrance, what have you experienced?
The 1993 2.5 t I drive was worst. Could not make it up tinnyiest slope out of my driveway. It wouldn't hold any vacuum. The car had what i thought to be bad fuel in tank - Red turpentine smelling stuff. Cuold have led to its demise . Anyway the 1993 s have that new cheaper style alda that are like a can - no screws. I chiseled it off with a screw driver like opening a can of beans. It was easiest way to get it off. Car ran fast as a 2.5t can I imagine.

Another 85 300dt had really bad Alda. Not safe to drive on Rd cause can't pull in front of people. All the unscrewing of the not never got it to normal power so I took that one off completely too. Fixed the problem.

Then my friend bought the 1993 2.5t off here a few months back, that nice one in ky. Those people had put new ip on and all kind of stuff. Surprisingly the Alda was still bad though. Not as bad as my 1993 though You could drive but pulling off the line ws dangerous. We took a screwdriver to it and fixed it good That pos Alda probably cost the previous owner a couple thousand at least for an unneeded ip.

The thing about new style Alda is you can't get at nuts to remove without taking intake off. The vacuum nipple curves down in front right where you need to get your wrenches. I'm sure someone with the right tools maybe could do it. Maybe not. A flat head screwdriver, hammer, and channel locks to turn works great though.

__________________
What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 04:03 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page