Ok,

I have one of those needlessly complicated '85 300TD federal vacuum systems. I have looked over the diagrams to no avail. I would like someone who understands the system better to draw me a custom diagram.

I want to OMIT the following:

1: ALL EGR crap
2: Blue ufo
3: ALDA maybe, not sure yet. *See below
4: INOP leaky door locks

I want to KEEP the following:
1: HVAC(fixed all leaks finally)
2: "turn off" valve
3: Vac modulator on transmission
4: Vac control valve thingy on the IP
5: Over boost
6: ALDA *if I need it for over boost.

For over a year I have been running with only the HVAC and shutoff valve hooked up. Everything else was capped off. ALDA is currently removed but I am ok with putting it back on. Today I fixed the leaking vac modulator by replacing the cracked rubber cap, it now holds a vac. My shut off valve(on the key switch) leaks a little. The blue ufo is a mess and I dont want to mess with it. I think I read somewhere that someone here deleated the ufo and it all shifted fine.

I have lots of vac parts from my '87 300d since I pulled it ALL out and stuck with the shut off and hvac.

Thanks for any help.

__________________
08 R320 CDI current

Past
95 E420
87 300D Turbo 5spd
90 300TE
83 300SD
85 300TD
92 400E
85 190D

Do a search. It is on here.

OMIT

1. EGR "AND" ARV you can plug/remove.
2. Keep the saucer, your going to need it.
3. Keep the ALDA. Learn more before you start screwing around with these thngs.
4. Lots on vacuum diagrams and info. on vacuum. Again, go to the top of the page in the diesel discussion and look at the diagrams. You are going to have to look at them anyway if you really want to fix a problem.

KEEP

Yea... You pretty much need all of that.

__________________
AJ

1985 300D (SOLD)

Here is a diagram. Remove what's X out.

BTW - Both 1985 Federal and California vacuum systems are the same.






.

__________________
1983 123.133 California
- GreaseCar Veg System

Ok that actually clears it right up for me. I have seen this diagram with the red X's before but thought it was for the CA version. Then I look at the FED diagrams and it didn't have all the same stuff.

So was I hallucinating or did someone not remove the blue saucer all together?

__________________
08 R320 CDI current

Past
95 E420
87 300D Turbo 5spd
90 300TE
83 300SD
85 300TD
92 400E
85 190D