Same situation here, on my 4G H22. The sound started after replacment of my timing belt. The sound is there only at about 800-900RPM and it is not as the sound of Scriber. Exactly the same noise made my old F22 Prelude 4G, but it made it at idle and at 1800RPM, so this sound is not auto-tensioner related (F22 has manual one).
I tried everything:
- remove the PS pump, A/C and alternator belts, no change.
- change the auto tensioner to the manual H23 one, so the tensioner pulley is a new one. No change.
- remove the balancer belt, no change. So the balancer belt/shafts is not the problem.
- after disscussing this problem with Todd Marcucci (thank you!), I also tried to change the water pump with fresh coolant, no change.
- I tried to grease the pulleys that are on the crank shaft and also grease the pin, for the case that it would have some play. No change. Don't worry, the belts are not greased.
- Finally, I made auto to manual tensioner ocnversion, no change.
So even if I have only the timing belt connected to the engine (all other belts are disconnected, including the balancer belt), the sound is still there.
With the manual tensioner, I found the only thing that can remove this sound: loosen the timing belt a bit. When I make it a little loose, the sound disappears, but my timing belt is vibrating at some speeds while it's running. Anyway, with the "right" tension (with a good autotensioner or with the manual one with tension set according to the Helms) it makes this terrible sound!
So it seems to me that it depens ONLY on the tension of the timing belt, nothing else, so probably it is the valvetrain or the timing belt itself (I have aftermarket one).
Try to record you noise with a laptop, make MP3 and we can listen to your noise.
I started a new thread where we could build some database of engine noises. Please add your noise here so we can help others and maybe others will solve our problem. Thank you.
Originally posted by petrveit
I started a new thread where we could build some database of engine noises. Please add your noise here so we can help others and maybe others will solve our problem. Thank you.
Mine is a little bit more high pitched, but maybe that is just the recording. It is sort of like a hollow popping noise. Also, I get the impression from the recording (when you revved the engine) that the sound you are getting is apparent through a wider range of revs than mine, but you do say that it happens between 800-900RPM. This is similar to mine, but I would say mine is between 800 - 950 RPM.
I reckon we are both inflicted by the same problem
I had a high pitched supercharger whine when I replaced mine, but it went away in about a month. I wouldn't worry about it unless it doesn't go away soon.
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97 EGP Base 5spd Prelude. Engine: DC short ram, DC SS headers, AEM pulleys, Random High flow cat, Mugen sport exhaust, Apexi VAFC. Suspension: Tein SS, Tanabe front lower tie, Neuspeed front upper strut, Neuspeed rear sway, Tanabe rear upper strut, DC rear lower tie, 17X7.5 5Zigen Typhoons with 215/40/17 Goodyear F1 GS-D3s. Other: Bride Ergo II, Spoon oil cap, Magnecor wires, relocated Odyssey 680 battery, Denso iridiums, Mugen pedals, Mugen lugnuts, shortened shifter w/ Momo airleather, Rotora slotted rotors and Endless NA-Y pads, Goodridge SS lines.
i just got my timing belt and autotensioner replaced (with the updated oil seal part on the autotensioner)
i get a slight vibration at about 5000 rpm and above now, which makes a sound like a small nut is vibrating around inside the engine, and i can feel the vibes through the shifter (SS).
i had the fluttering sound before the replacement, and it was diagnosed to be due to a leaking autotensioner. but even after replacement, the sound is still there!
i did notice that the mechanic put the alternator belt on much tighter than i had it before, so i may just loosen that up a bit and see if it relieves anything.
i had the same problem, my freind said that one of the belts were too tite, so he unloosened it alittle bit... its the belt where u tighten it using a wrench... its not as tite, but the whining noise is gone...
did everybody go to honda and change their auto tensioner? was it a defect or reacall or something, i think i'm missing something and i hear something is loose in my car
Mine is a little bit more high pitched, but maybe that is just the recording. It is sort of like a hollow popping noise. Also, I get the impression from the recording (when you revved the engine) that the sound you are getting is apparent through a wider range of revs than mine, but you do say that it happens between 800-900RPM. This is similar to mine, but I would say mine is between 800 - 950 RPM.
I reckon we are both inflicted by the same problem
UK Prelude, have you already solved the problem? I didn't :-(.
Originally posted by Keith I have a sound too.. but not a flutter sound... it's more of a super charger whining sound... I figured it was the new auto tensioner.
Keith
I too have this noise, especially when driving with a cold engine. All belts and tensioner were replaced in December.
I had the exact fluttery-type noise after getting JUST the belts done.
Gave up on taking it into the shop for them to tell me it's 'normal'... so I ended up taking it to Honda to have everything (both belts, new tensioners/auto adjuster, new water pump) done.
Result - the noise is gone and the engine sounds great.
Probably a massive overkill but it fixed it for me!
Originally posted by petrveit
UK Prelude, have you already solved the problem? I didn't :-(.
Nope, unfortunately, I still have the problem. That noise has been there since about November. I took it back during December but the dealer said they couldn’t hear it. Which is slightly understandable ‘cos sometimes it isn’t very noticeable. I am worried that when I do take it there and it is clearly making the noise, they will say to me that it is normal
People hear have compared it to a supercharger. I agree, sometimes mine can sound a LITTLE like a supercharger if I keep the revs at the right point.
My passenger side electric window isn’t working at the moment. If I need to take it to Honda, I will get them to check out the noise again while it is there.
ya i have the same thing , with the whining of the new timing belt , cause it was just changed a few thousand ago, i think that it sounds kinda cool the whine when you are revving out gears, anyway i doubt anything is really wrong with your cars
Same thing with me. Just got the timing belt service from Honda yesterday, and I have the whining sound. It's sounds fine at idle, but it gets LOUD when I increase the revs. A guy in my apt building used to be a honda mechanic. He said that the timing belt is too tight. He told me to take it back and have them losen it. From the sounds of some of the posts, it could actually be set at the right tension, even though it is making the noise. And I'm getting rust. I'm so depressed. I just can't win.
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