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Old 07-06-2002, 11:36 AM
KylePavao
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240D uneven idle at startup

My 1983 240D 4 spd is sitting in my yard as I work on it. I start it up once a day and let it run for a bit to make sure things are good. When I started it up today, the idle was a bit uneven and then smoothed out. I shut it down, and started it again and it started smoothly. This normal?
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Old 07-06-2002, 12:17 PM
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Join Date: Aug 2001
Location: Evansville, Indiana
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Probably needs to be driven some. Idle is hell on diesels, causes them to carbon up and all sorts of other ills.

You could also have a weak glow plug, causing one cylinder to burn poorly until it warms up. You will get a small amount of white smoke if this is the case, worse when it is cold outside.

If you haven't done a valve adjustment, do so -- these engines are sensitive to valve wear.

Peter
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Old 07-06-2002, 12:30 PM
Holson Adi's Avatar
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Maybe you just need to increase the idle speed a little or if there is a rack damper pin behind the injection pump it might need to be backed out (loosened).

Don't take my words on the rack damper. I actually don't think it's available on the 240D
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