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Old 09-20-2010, 11:37 PM
Chris_87_300D Chris_87_300D is offline
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Join Date: Feb 2006
Location: Northern Arizona
Posts: 54
Quote:
Originally Posted by bustedbenz View Post
I can't hear anything (never have seen a sound in a pdf before and can't find yours) but the smoke is, just based on this post, entirely normal. Diesel smoke is caused simply by the injectors providing slightly more (ranging up to extensively more) fuel than the available air can burn. At idle, almost ALL diesels smoke if they are configured to deliver their "normal" amount of power under acceleration rather than a limited amount. You've just had your injectors brought up to spec from previously under-delivering fuel, and by adjusting the alda out, you've SIGNIFICANTLY increased the amount of fuel your engine has access to. This is a good thing for acceleration, but does increase smoke slightly.

Point is, wouldn't worry about the smoke. Nine times out of ten, when you get a seat massage from the engine's idle, it's the motor mounts getting worn out. You can speed up the idle a hundred rpm or so and the shaking should be "hidden" although not "fixed".

No idea about the sound since I can't hear it.
Thanks for thoughts on the smoke - that's not a big concern, but I thought that it might be related. I don't recall it smoking on idle much before, though. Smoking on acceleration can be a benefit - such as when you've got a pesky tail-gunner on a two-lane road.

If you open the pdf, there should be a little bar near the top with a pause/play button (it is kinda small - 2nd button over and you may have to click it 2x to work). Sorry if it's not there for you, maybe it requires some computer hardware to work. Sound file was too big for the normal attachments and I didn't have any way to make it smaller.
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Chris_87_300D
1987 300D - 415,000+ miles
1999 E320 - 220,000+ miles
2008 SL55
2019 Sprinter Diesel 4x4
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