W123

1984 300D rough idle after highway run

Hi all. My car is running sweet with one minor flaw. After driving at highway speed, 60-75 mph, when I get off and hit the light at the end of the exit ramp the car idles rough. Then I drive around town for a while and the idle smooths out and it runs normally again. I plan on doing a valve adjustment as soon as my wrenches are delivered and I am hoping that is it. Has anyone experienced this and can they confirm I heading in the right direction?

Thanks in advance

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79 240d oil pressure ?

I'm going to try this question again. My 79 240D just got a new (used but better than it had) engine.
The engine starts good when cold (20 degrees now) and has good power for it's age.
I'm running Schaeffers 9000 series 10/30 synthetic. Had good luck with this oil in other diesels we own including old dodge cummins, and our new 09 volks 2.0 tdi.
And maybe what it's doing is no big deal, but it doesn't seem right.

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1977 300D no engine turnover

as if things couldn't possibly get worse from what they are. I just bought a can of engine starter at autozone, the guy there told me if i sprayed it in the intake and the car started it need glow plugs... well i did what he said and soon after my car started and ran. since my car set about a week without running i went and drove it about 5 mile when it started overheating.

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