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  #1  
Old 12-05-2015, 05:36 PM
toomany MBZ's Avatar
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Odd idle "lope" 83 300 SD

https://www.youtube.com/watch?v=G7yJALUJHGY&feature=youtu.be

Listen carefully, about every one and a half seconds, any guess?

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Old 12-05-2015, 07:32 PM
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Quote:
Originally Posted by toomany MBZ View Post
https://www.youtube.com/watch?v=G7yJALUJHGY&feature=youtu.be

Listen carefully, about every one and a half seconds, any guess?
.........and your problem is ? Seems just a hair too high idle speed. Drop the idle about 50 rpm and then loosen the damper nut/bolt and try in and out adjustment until smoothest idle.


For my self unless it revs up now and then I'd do nothing. Worn valve guides, loose turbo will add oil to the fuel charge and cause uneven idle.

Before you adjust the idle lope remove oil cap and see if there is any change. Also push STOP lever a little slowing the idle for same reason.

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Old 12-05-2015, 08:21 PM
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Well, it's an oddity, no issues, really, but haven't noticed this before.

Hopefully not an indiction of an upcoming failure.

Revs don't change, just that odd lopping sound.
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Old 12-05-2015, 08:29 PM
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With your moniker, I presume you are familiar with this engine?



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Old 12-05-2015, 10:01 PM
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Yes, I haven't noticed this lopping with any of the other four I've owned.
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Old 03-07-2016, 04:56 PM
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Turn out it was a failing A/C unit.

I cut the belt, no more "funny" noise.

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