Have an '85 California Wagon that I just started cleaning up a bit. Ended up knocking apart all the vac lines by mistake and paid for it last night by mulling over forum posts and diagrams haha. I think it's all finally in it's right place but I am confused about one thing...

Out of the top of the control valve on the injection pump there is the obvious group of vac lines ... But, What is supposed to connect to the side of the valve on the '85's is a mystery to me. This wagon had nothing coming from that spot which doesn't help and I have read that the line should be the vent line that runs into the interior? I know on my '83 there is a "y" line coming from the valve in this spot but would like to know what if anything should be attached to this one.
Would it be ok to leave open for now?
Any help would be greatly gobbled!
Thanks.

Sorry, not familiar with the 85 Cali. However, I do know that the VCV needs to be vented so if there's not another vent somewhere, leaving it open seems like the proper thing to do.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Yes, that's simply a vent.

Your 83 didn't have the egr system bypassed, so a line from the black box went to a "Y" connector there.

The 85 Cali cars have just the one line.

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83 SD

84 CD

As stated it's a vent. But if you if you leave it open in the engine bay, put a cheap inline fuel filter on it to prevent dirt from entering the system.


Here is a thread with pics that may help.

1985 300D vacuum crazyness.




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1983 123.133 California
- GreaseCar Veg System