Correct... That is how mine was with the emissions crap installed. It was all wrong. I found that out after I removed it all. Where the vacuum sources come off the main line is incorrect in the above photo.

After I removed the EGR and ARV controls I realized that some things were switched around. Here it is today...

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AJ

1985 300D (SOLD)

Ok, I'm slowly but surely figuring this out with everyone's help.

Here are my questions...

1. There is a line that goes off of #65 (vacuum control valve) on the back of it. It's not the line on top. What line is this? A black vent line?

2. On the four way connector that the doors are on, what should be on the other two connectors? One should be brown, right? What is that line? Should the other be the A/C green/yellow line?

3. The black with brown stipe and black with blue stripe should both go to the switchover valve behind the brake booster (#125), correct?

Other than those questions, I think I have everything drawn out. Thanks for the help everyone. I can't wait for the parts to come in the mail so I can fix this.

David

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1985 300D. 179,000 miles.

1. #65 is the vent line
2. You should have 2 yellows after the check valve that go to doors. The green is the A/C and the brown is the vacuum reservoir.
3. That sounds right.

__________________
AJ

1985 300D (SOLD)

#1) If you are referring to the line that come out of the side of the VCV #65 then it is a vent line. But if it is behind it between the IP and oil filter housing, then it is the shut off valve vacuum.

#2) The yellow and grey striped line goes the reservoir. The brown line is the shut off vacuum leading to the ignition switch.


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__________________
1983 123.133 California
- GreaseCar Veg System

There are only two vacuum lines going to the VCV #65, correct? One on top with a green damper and one that connects to the side closer to the passenger side, which is a vent, correct?

David

__________________
1985 300D. 179,000 miles.

Yes..

DeliveryValve is right. The reservoir is Yellow with Gray not a Yellow with Brown (sorry about that).

Here is a FULL COLOR door interlock diagram. Download and open in Word:

W123 Vacuum InterLock Diagram


Edit: oops... Almost forgot. The solid brown line in my last photo goes to the ignition switch and the other brown line (with stripe forget color, purple?) goes down to shut off valve on back of IP.

__________________
AJ

1985 300D (SOLD)

Ok, I just realized there are 3 lines that connect to the VCV. But the diagram posted before only shows two. On the top of the VCV is the line with the green damper. On the passenger side is the vent, correct? What about on the drivers side? What connects there and what color is it?

Edit: here are two pictures with circles over the lines I'm talking about.


David

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1985 300D. 179,000 miles.

Ok.... I have been trying to do all of this from memory and pics. The wife finally got home with the car. I just popped the hood and took a peek.

There are only 2 lines on the VCV. One is source vacuum and the other is a vent.

You are probably refering to the shut off valve. That would be the brown with purple stripe. The solid brown goes to the ignition switch. The brown and purple comes from the ignition switch.

__________________
AJ

1985 300D (SOLD)

The vent line comes out the side of the VCV (horizontal). The only other line goes that goes to "Component #65" is the one that goes in the top.

On my car... The vent line is black and the brown and brown purple lines are shut off.


EDIT: I had the wrong angle on your pic. THE one in the yellow circle goes to the shut off valve! It goes down to the back of the IP between the IP and the oil filter. The vent line comes off the side of the VCV (horizontal) right by the VCV adjustment cover.

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AJ

1985 300D (SOLD)

Ok, so with the brown and the brown/purple lines, which goes where?

Does the solid brown go to the VCV?

Does the brown/purple hook up to the 4 way connector that the doors and A/C also connect to?

Or is it the other way or do I have it all wrong?

Thanks,

David

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1985 300D. 179,000 miles.

NO.... You should just have rubber hose going to the top of the VCV with a green dashpot upstream. There are several "throttles/orifices" in the mix too. There is a page on the proper orifice location here somewhere. That damn diagram is too hard to read.

That is all wrong.... The brown/purple should be coming through the firewall from the ignition switch and run down to the "Shut off valve" on the back of the IP. Color does not matter as long as everything is hooked up properly.

The solid brown should run off of source vacuum and go "into" the firewall to the ignition switch (seen in my last pic).

Then the vent line should run off the side of the VCV, turn and run into the cabin, through the firewall and just end.


At this point it would probably be a good idea to pull the drivers kick panel, look up at the ignition switch and see what color lines are going to and from the switch. Just to be sure. Some one may have replaced a line or swapped one at some point. They may not be the correct color code.

__________________
AJ

1985 300D (SOLD)

Oh ok, I thought the one that was going to the back of the IP was going to the back of the VCV. So that one should be brown/purple as long as that one is still correct inside the car.

The solid brown line should be hooked up to the source vacuum... yes... but connected how? I just can't see it in your photo. Does it connect to a 4-way connector with the doors and A/C green/yellow line? That is source vacuum correct?

The one with the green damper on the top of the VCV seems easy to me, I think I figured out how to do that whole chain of connectors, orifices, lines, etc.

Thanks,
David

__________________
1985 300D. 179,000 miles.

Yes it goes to the four way connector with the doors. #140 on the diagram, one of the "C"s on the four way connector.











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__________________
1983 123.133 California
- GreaseCar Veg System

Ok, DeliveryValve, according to the close up you posted, on 140 that 4-way connector comes off. From that 4 way connector, one goes to the blue saucer, one goes to #81, and one goes to another 4-way connector. On that second 4-way connector, one goes to the doors (which in turn becomes two after the yellow check valve), one goes to the A/C (green/yellow) and one goes to the ignition and it's solid brown. Is that all correct?

Thanks,
David

__________________
1985 300D. 179,000 miles.

You got it!

Here is another pic...






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__________________
1983 123.133 California
- GreaseCar Veg System