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86 350sdl really slow 86 350sdl really slow
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  #16  
Old 10-26-2010, 09:35 PM
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Quote:
Originally Posted by benzhacker View Post
Mulchman,

You have the correct replacement exhaust that was either replaced by the MBZ campaign free of charge, or via aftermarket purchase and installation. While an older unit might be clogged which will bog down the motor, exactly what did you check in terms of vacuum tubing so far? The lines between the air intake manifold and the ALDA, the lines to the turbo in particular. Also, did you get the socket to yank the fuel filter outlet screen? The goal is to isolate if you have typical fuel or air issues before moving to the less common causes.

-bh
I cleaned out the line from the intake to the over boost and over bost to aldA. Also cleaned the line from crank case to waste gate thing.

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  #17  
Old 10-26-2010, 09:36 PM
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I have not done the filter that is in the tank
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  #18  
Old 10-26-2010, 10:37 PM
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Quote:
Originally Posted by mulchman View Post
I cleaned out the line from the intake to the over boost and over bost to aldA. Also cleaned the line from crank case to waste gate thing.

Did you clean the banjo bolts on these lines as well? One on the intake, one on the ALDA.

That is what I found really gummed up a while back.
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  #19  
Old 10-26-2010, 10:51 PM
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Originally Posted by 4thesporty View Post
Did you clean the banjo bolts on these lines as well? One on the intake, one on the ALDA.

That is what I found really gummed up a while back.
No I didn't clean those, sould I take them out of the intake and clean or leave them in while I clean them?
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  #20  
Old 10-26-2010, 11:18 PM
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They simply unscrew from the intake and ALDA. You should take them out and clean them well.

Were the lines very bad?

Someone correct me if i'm wrong. I am used to working on a 617, rather than a 603, but these should be the same, right?
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  #21  
Old 10-27-2010, 12:00 AM
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not quite the same, no banjo bolt, just a fitting screwed into the intake, with a hose barb for the alda hose. same principal though.
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  #22  
Old 10-27-2010, 02:31 AM
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On my SDL I found that the changeover valve and the small plastic line running to it was plugged solid with soot. Cleaning that out would let the car go past 80. I don't recall the nipple itself being plugged.

-J
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  #23  
Old 10-27-2010, 09:22 AM
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No cat, the 350SDL never came with a cat it had the later inclined-injection and cleaner burning so it needed no trap-ox / cat.
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  #24  
Old 10-27-2010, 11:20 AM
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Originally Posted by compu_85 View Post
On my SDL I found that the changeover valve and the small plastic line running to it was plugged solid with soot. Cleaning that out would let the car go past 80. I don't recall the nipple itself being plugged.

-J
Where is that valve at?
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  #25  
Old 10-27-2010, 11:52 AM
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He's speaking of the overboost protection valve
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  #26  
Old 10-27-2010, 02:01 PM
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Quote:
Originally Posted by compu_85 View Post
On my SDL I found that the changeover valve and the small plastic line running to it was plugged solid with soot. Cleaning that out would let the car go past 80. I don't recall the nipple itself being plugged.

-J
Where is that valve at?
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  #27  
Old 10-27-2010, 02:03 PM
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Originally Posted by mulchman View Post
I cleaned out the line from the intake to the over boost and over bost to aldA. Also cleaned the line from crank case to waste gate thing.

You already did this.
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  #28  
Old 10-27-2010, 02:06 PM
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I'm going to clean the valves that are coming from the intake hose and I will report back
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  #29  
Old 10-27-2010, 02:28 PM
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On the 350SDL the changeover valve is on the driver's side fender by the round blue plastic device.

On the 300SDL the changeover valve is on the false firewall in "front" of the brake booster.

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
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  #30  
Old 10-27-2010, 04:06 PM
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Quote:
Originally Posted by compu_85 View Post
On the 350SDL the changeover valve is on the driver's side fender by the round blue plastic device.

On the 300SDL the changeover valve is on the false firewall in "front" of the brake booster.

-J
what is that blue round thing?

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