Thanks for the information. I just Googled McMaster-Carr.

How do you define "high speed"? We rarely go over 70...

If the engine mounts/subframe bushings were the main culprits, would we feel vibration along with the noise? The car really doesn't vibrate at all below ~3500 RPM..

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Are you sure it is not something broken? Sometimes something like an exhaust heatshield gets loose and resonates at a particular engine RPM giving you some kind of buzz.

The car has always been on the louder side (we bought it new). There is a small exhaust leak at the muffler, but that came about because of a car accident that bumped the muffler less than 1000 miles ago (it has 141,000), and it's not significantly louder as a result (you can hear a different exhaust note in the backseat, but it's not any louder, just different).

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

My civic is a loud little thing. Most of the noise in mine radiates from the floor and roof. I agree with fatmat throughout the interior. Labor intensive though.

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Satan creates nothing: he only ruins everything. He does not invent: he tampers. And his followers are no different ~ Archbishop Carlo Maria Viganò

I've already stripped the interior once (for a through cleaning), so I now what that involves . I'll let you guys know what we go with...

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."

Back in 1975, I had a 1971 Datsun 1200.... Noisy little 40mpg tin box.

I helped a friend line the entire interior, (doors, ceiling, floor, dash); of his even noisier 1967 MGB-GT with shag carpeting.....it was so 1970's Awesome!
And so quiet.
So I proceeded to line my Green kamback Datsun 1200 with 2" of soft cushy foam, AND shag carpeting...ceiling, doors, hatch, floors, dash.... Man, it was double Far-Out! It was a soft, cushy, quiet, 40mpg machine. (It was cool until the shag carpeting on the ceiling was falling down on my head while driving through Sequoia National Park...not Far-Out man!) So I took a few stitches and sewed it to the headliner.

So I suggest; 2" of soft cushy foam and shag carpeting; I guarantee comments from everyone; but you won't hear them from your mini sin bin; the rolling cone of silence...................... I approve this message.

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"Our Lady of Blessed Acceleration...
don't Fail Us Now"

Now that is a funny story. I can relate to the shag carpet era. it was soooo DISCO, and the in color was Lyme green, or orange yellow.


Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Heh, heh...orange yellow shag in a kelly-green car........ Far out man!
Actually pre-disco, pre 'Spirit of 76', otherwise it could have been red white and blue mix shag.

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"Our Lady of Blessed Acceleration...
don't Fail Us Now"