I had a timing belt replaced less than 100 miles ago. I have a cooing sound coming from the engine bay at idle. Is the timing belt too tight? All exposed belts are very tight?
Dove cooing sound
- Thread starter HUNTJAMES
- Start date
Having replaced my timing belt myself this year, its virtually impossible to make the timing belt too tight. On the other hand, its pretty easy to overtighten the ac or alternator belts.
Or. if the ac & alternator belts weren't replaced, the direction of rotation not marked, and then put back in the opposite direction of rotation, its possible they might be noisy.
Or, have you seen any white feathers coming out from under the car? :biggrin:
Frank
96 NSX-T, red/tan
Or. if the ac & alternator belts weren't replaced, the direction of rotation not marked, and then put back in the opposite direction of rotation, its possible they might be noisy.
Or, have you seen any white feathers coming out from under the car? :biggrin:
Frank
96 NSX-T, red/tan
I feel your pain! I had my TB/WP changed in April '05 and could swear the engine sounded different. I described it as a whine type sound but that was not very accurate. It just had a different sound than before the service.
I've had no problems with the TB. The service guys even took a listen because of my anxiety, but they were not concerned. Basically, if the engine isn't running rough or sounding like a V8 or something drastic, you are probably experiencing the same feeling I had. It could just be the difference from the tension of the older TB to the new TB.
Shaun
I've had no problems with the TB. The service guys even took a listen because of my anxiety, but they were not concerned. Basically, if the engine isn't running rough or sounding like a V8 or something drastic, you are probably experiencing the same feeling I had. It could just be the difference from the tension of the older TB to the new TB.
Shaun
If you are up for it, here is a couple ideas.
1. Loosen the tensioner for the A/C compressor and remove the belt.
Take the car for a test drive.
Noise goes away.
Feel the tensioner pulley for a rough bearing. If the pulley bearing is smooth feel the A/C compressor pulley bearing. It is very easy to over tighten the A/C and the alternator belt.
If the noise doesn't go away, leave the A/C belt off and remove the alternator belt.
Take the car for a test drive, don't go too far, maybe just a trip around the block.
Remember the battery is now the primary electrical source. It doesn't hurt anything to run the car, just remember there will be a couple red lights that remain illuminated on the instrument panel while you do this.
Noise goes away, feel the alternator for a rough bearing.
Problem doesn't go away, let us know.
Good Luck,
Brad
1. Loosen the tensioner for the A/C compressor and remove the belt.
Take the car for a test drive.
Noise goes away.
Feel the tensioner pulley for a rough bearing. If the pulley bearing is smooth feel the A/C compressor pulley bearing. It is very easy to over tighten the A/C and the alternator belt.
If the noise doesn't go away, leave the A/C belt off and remove the alternator belt.
Take the car for a test drive, don't go too far, maybe just a trip around the block.
Remember the battery is now the primary electrical source. It doesn't hurt anything to run the car, just remember there will be a couple red lights that remain illuminated on the instrument panel while you do this.
Noise goes away, feel the alternator for a rough bearing.
Problem doesn't go away, let us know.
Good Luck,
Brad
I tried taking both belts off, no help. Drove to local Acura Dealer. Tech says tiimig belt is too tight.
You have to really try hard to over tighten the timing belt.
I hope that the dealer will cover the labor to fix it. It may also be the timing belt tensioner bearing making noise. Did they replace the tensioner bearing when they did the belt change?
Anyway, now you know how to change the A/C belt and the alternator belt yourself. Let us know what happens.
Brad
Ski_Banker
Suspended
Is dove season around the corner or something?? Feeling antsy, HUNTJAMES?
:tongue: :biggrin: :smile:
:tongue: :biggrin: :smile:
Loosened belt, Dove flew north for the summer!
Was this done by the dealer who did the belt replacement, or someone else?
Do you know how they "loosened" the belt? How long (minutes or hours) did it take?
My WAG is they didn't follow the one final tightening step in the manual that after initial installation and tightening has you rotate the engine to a certain set of marks, then loosen and retighten the self-tensioning pulley again. (See the FAQ on timing belt rpelacment for all the gory details) Because that bolt protrudes through the timing belt cover, that can be done without going through the lengthy process of removing the covers again (many hours). If that's what they did, it might be that the belt was actually a little loose and they completed the final tightening step - more than a little bit out of sequence.
However, if they did take a shortcut during the initial installation and didn't follow that final tightening step, I don't think they would ever admit it.
In any case, I'm glad to hear all is now well.
Frank
Was this done by the dealer who did the belt replacement, or someone else?
Someone else!
Do you know how they "loosened" the belt? How long (minutes or hours) did it take? He said it would only take 2 hours.
My WAG is they didn't follow the one final tightening step in the manual that after initial installation and tightening has you rotate the engine to a certain set of marks, then loosen and retighten the self-tensioning pulley again. (See the FAQ on timing belt rpelacment for all the gory details) Because that bolt protrudes through the timing belt cover, that can be done without going through the lengthy process of removing the covers again (many hours). If that's what they did, it might be that the belt was actually a little loose and they completed the final tightening step - more than a little bit out of sequence. Probably. Still, they are good people that stand behind their work so I knew the problem would be rectified. Thanks for all your input Frank!
Someone else!
Do you know how they "loosened" the belt? How long (minutes or hours) did it take? He said it would only take 2 hours.
My WAG is they didn't follow the one final tightening step in the manual that after initial installation and tightening has you rotate the engine to a certain set of marks, then loosen and retighten the self-tensioning pulley again. (See the FAQ on timing belt rpelacment for all the gory details) Because that bolt protrudes through the timing belt cover, that can be done without going through the lengthy process of removing the covers again (many hours). If that's what they did, it might be that the belt was actually a little loose and they completed the final tightening step - more than a little bit out of sequence. Probably. Still, they are good people that stand behind their work so I knew the problem would be rectified. Thanks for all your input Frank!
