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Old 01-25-2004, 05:18 PM
Registered User
Join Date: Jan 2001
Location: oregon
Posts: 2,013
Vacuum diagram anyone?

Dose anyone have a diagram for the six short vacuum hose that connect the two vacuum valves on top the valve cover on my 81 SD. I have new valves but the hoses were so old they fell off the valves when I removed them.

As my egr is blocked can I unplug the top valve that opperates it? It had a line connecting it to the bottom valve that goes to the vacuum valve on top the IP that controls the modulator. I am replaceing all three.

THe plastic shut off valve was a dealer part from Fast Lane $155.00 ouch! but Phil got it for me for less than any other source...........

William Rogers......

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Old 01-25-2004, 07:34 PM
wolf_walker's Avatar
Zen And The Art Of Diesel
Join Date: Dec 2003
Location: Oklahoma City
Posts: 2,050
I know you have the single(don't you?), and I have the two stacked on top of one another, but minus the EGR, I don't see a reason to have them at all. ? The bleed valve on the IP handles the modulators signal as near as I can see on my gauge, and you can adjust it internaly and with the use of the colored orrifices in the vac line to get it to shift like you want.

Perhaps your is different? I thought I'd read up on all of them though.
One more Radar Lover gone...
1982 VW Caddy diesel 406K 1.9L AAZ
1994 E320 195K
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Old 01-26-2004, 12:12 AM
Charlie Mitchel
Posts: n/a

Try doing a search under "Vacuume Diagram"
oil cooler hose, really that difficult to change?
This is one of many.

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