Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Help please 98 Accord rattling humming after engine warms video

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Old Sep 20, 2021 | 04:03 PM
  #1  
arielb1's Avatar
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From: GRANADA HILLS, CA
Default Help please 98 Accord rattling humming after engine warms video

Thank you for helping me.

1998 Accord EX 225,000 manual tranny

Here is video
Video at 13 seconds, sounds horrible after engine warms up. Occurs especially while accelerating engine.

About a month before the issue, the last procedure I completed was a timing belt, balancer belt and pulleys changed.

To try and find the noise, I removed the serpentine belt and the AC/Alternator belt. I removed the timing belt cover. Started car and that is what video shows. Then, I removed the tbelt tensioner and tbelt pulley. The pulleys are smooth.

Noise is coming from tbelt area as far as I can tell.
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Old Sep 20, 2021 | 04:19 PM
  #2  
Steve Massey's Avatar
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Default Re: Help please 98 Accord rattling humming after engine warms video

Originally Posted by arielb1
Thank you for helping me.

1998 Accord EX 225,000 manual tranny

Here is video
https://www.youtube.com/watch?v=4apTXJoDKuo
Video at 13 seconds, sounds horrible after engine warms up. Occurs especially while accelerating engine.

About a month before the issue, the last procedure I completed was a timing belt, balancer belt and pulleys changed.

To try and find the noise, I removed the serpentine belt and the AC/Alternator belt. I removed the timing belt cover. Started car and that is what video shows. Then, I removed the tbelt tensioner and tbelt pulley. The pulleys are smooth.

Noise is coming from tbelt area as far as I can tell.
Has to be one of the pulleys. Just because they feel smooth when turned by hand doesn’t mean they will be smooth at thousands of rpms. 99% sure this is your problem since it gets worse as you rev it.

Did you use an economy timing belt kit?
Those are known to be crap right out of the box.
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Old Sep 20, 2021 | 04:28 PM
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arielb1's Avatar
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Default Re: Help please 98 Accord rattling humming after engine warms video

Hello Steve,

I thought I should be able to feel a bad pulley by hand. Lesson learned. The pullies I purchased from Rock Auto. Timing belt tensioner pulley does not have marking except on the bearing -Koyo made in Japan. The balancer belt pulley is GMB.

What brand name should I look for and where should I purchase? Thank you, very much.
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Old Sep 20, 2021 | 04:44 PM
  #4  
Steve Massey's Avatar
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Default Re: Help please 98 Accord rattling humming after engine warms video

Originally Posted by arielb1
Hello Steve,

I thought I should be able to feel a bad pulley by hand. Lesson learned. The pullies I purchased from Rock Auto. Timing belt tensioner pulley does not have marking except on the bearing -Koyo made in Japan. The balancer belt pulley is GMB.

What brand name should I look for and where should I purchase? Thank you, very much.
The koyo is an oem spec pulley so that one should be good. The GMB is a cheap Chinese made piece of junk. I used one of those GMB kits on my old Civic and it failed within 8000 miles. Bought a gates kit and never had an issue. Look up Gates Timing belt kits for your model. You have to stick to name brand stuff when it comes to critical components like timing kits.
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Old Sep 20, 2021 | 05:08 PM
  #5  
arielb1's Avatar
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Default Re: Help please 98 Accord rattling humming after engine warms video

Hello Steve

My bad, the balancer pulley is Gates, still made in china. I was surprised. Didn't know Gates sub their parts to China now. Honestly, I hate Chinese parts. Always always fail me. I purchased this kit from Rock Auto, looks like I put 20,0000 miles.

Will order my replacement parts from Hondaautomotiveparts.com. Will update you when completed. Thank you.

Cheers
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Old Sep 30, 2021 | 02:22 PM
  #6  
arielb1's Avatar
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From: GRANADA HILLS, CA
Default Re: Help please 98 Accord rattling humming after engine warms video

Hello Steve,

Just a follow through. It was the pulley making the noise. I replaced both pullies. Am suspecting the balancer pulley since it was Chinese made, Gates. The timing belt pulley is Koyo - Japan.

thanks again for your assurance.
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Old Oct 1, 2021 | 07:30 PM
  #7  
Steve Massey's Avatar
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Default Re: Help please 98 Accord rattling humming after engine warms video

Glad you got it sorted out.
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