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Old 06-11-2014, 01:37 PM
iamtheosprey iamtheosprey is offline
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Join Date: May 2014
Posts: 122
1987 300D "shhhhhh, shhhhhh, shhhhhh" Sound

I thought it could have been exhaust when I first heard it bouncing off buildings and bridges but now that I have opened the hood I can tell it's coming from the engine.

After running a few minutes it quieted down a bit but was still there just audible over the engine.

It almost sounds like a steel-bristled brush running back and forth over concrete.

Just by locating it by hear it almost sounds like it's coming from an injector.

I don't believe you can adjust the valves on this engine. Is that correct?
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