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Clanking noise from front end - Page 2

post #16 of 25
11/10/08 at 4:58pm
Quote:
Originally Posted by DarkNWorn View Post
Definitely not that sound. It sounds like a clanking noise, e.g. like when a metal fan blade hits the fan case.

But thanks for signing up just to help me with this.

Makes me think even more that it's your exhaust.
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post #17 of 25
11/10/08 at 4:58pm
New idea... Check all the belts and make sure you have clearance (nothing is touching them). It could be the idler pulley or something similar. Yeah, I know the CV axles don't make the noise described but sometimes the noise described is different than the actual noise... EDIT: Check the engine and tranny mounts too.
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post #18 of 25
11/10/08 at 8:56pm
Quote:
Originally Posted by Thomas View Post
If it's an engine heat shield, then the odds are that it flares up depending on the engine RPM.

Yep. And if it's just a little loose, it'll often be pretty easy to isolate it by the fact it only really makes noise at that certain spot in the RPM band.

If you're mechanically inclined at all, I would put the front end on jackstands and just try to hand-tighten every suspension and exhaust bolt. All you'll need is a 10, 12, 14, and 17mm socket set and preferably the same in box wrenches. I'd imagine it wouldn't take 20-30 minutes total at the max.
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post #19 of 25
11/10/08 at 9:22pm
Quote:
Originally Posted by dkzzzz View Post
You have exhaust heat shield loose, a 20 dollar/5 minute repair.

Oil changes/oil filters ? That is hillarious. You guys certainly know as much about cars as average byceclist.


P.S. In independent study made in mid nineties and involving NYC cabs. Traspotation dept. determined that neither frequency of oil changes nor quality-grade of oil made ANY difference on wear and tear of the engine parts. This study was conducted over one year period or 70-80 K miles . Engines involved were removed and taken apart for assessment of wear.


At the end recommneded oil change intervals suggested by the study were every 5-6,ooo miles with a note that it is absolutely safe to change oil every 10K as well.
Good day and best wishes from Oil Industry.

I agree on making oil changes less frequent, but the problem with this test was that it was performed on cabs. Cabs run all day and therefore the oil gets plenty hot and can burn off water that collects inside the engine when it cools down. Most every day drivers never actually get their car up to full running temp long enough to do this and so the moisture collects and ruins the oil or leads to rust/oil foaming/sludge. Sludging was a huge problem with Japanese cars in the early 2000s and late 90s.
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post #20 of 25
11/10/08 at 9:31pm
Quote:
Originally Posted by dkzzzz View Post
P.S. In independent study made in mid nineties and involving NYC cabs. Traspotation dept. determined that neither frequency of oil changes nor quality-grade of oil made ANY difference on wear and tear of the engine parts. This study was conducted over one year period or 70-80 K miles . Engines involved were removed and taken apart for assessment of wear. At the end recommneded oil change intervals suggested by the study were every 5-6,ooo miles with a note that it is absolutely safe to change oil every 10K as well. Good day and best wishes from Oil Industry.
I have issues with that study also, as the sample set is a poor representation. Cab service is extremely hard on a car, and wear due to that service can be disguising effects. ~ H
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post #21 of 25
11/10/08 at 10:20pm
Quote:
Originally Posted by Huntsman View Post
I have issues with that study also, as the sample set is a poor representation. Cab service is extremely hard on a car, and wear due to that service can be disguising effects.

~ H

I am sorry ,but what you're saying makes no sense at all.

If you do the same test on cars that show very little engine wear how do you even register negative or positive effects?
It's like saying don't test cancer drugs on cancer patients cause benefits might be disguised by poor health condition of the patient.
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post #22 of 25
11/10/08 at 11:27pm
No need to be sorry, I understand what you're saying, but to continue your analogy, it's like testing anticancer drugs on patients with cardiac conditions and using death as a metric. Part of what I do concerns devising and implementing accerlated testing of components, and a large part of that is ensuring that you can accerlate normal wear conditions in a faster manner without introducing additional effects that contaminate the results. With this, I'm just concerned that cab service (a certain type of hard service) is not equivalent to accelerated normal service. Other factors may be being introduced by the nature of that serivce. I could be wrong in this, however. I don't know what the minimum change interval of the study was, either. t could be that the threshold for wear reduction was always exceeded if cab service, say, requires an oil change every 250miles instead of every three thousand, and if that is not observed, wear rates are equivalent. ~ H
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post #23 of 25
11/18/08 at 10:11am
So what was the verdict on this one?
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post #24 of 25
11/18/08 at 2:32pm
Thread Starter 
Quote:
Originally Posted by ratboycom View Post
So what was the verdict on this one?

It's the heat shield. It's been cold outside, and we hardly drive anywhere, so I haven't fixed it yet. Actually, it's just me being a lazy ass bf.
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post #25 of 25
11/19/08 at 3:45pm
What's incredible is not that I was wrong but this must be the only thread where Dkzzzz was right. /I am still surprised a smooth Honda engine would vibrate so much at idle to cause the exhaust shield to vibrate enough to create a racket.
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