I have been hearing a quiet rythmic speed based viabration. It can be heard in gear or in neutral, and with the motor on or off. It does not change upon neither accelration nor deceleration. Once the clutch line is pressurized and the motor is either idling or off I can feel a tapping in the pedal that is in sync with the noise heard.

Upon inspecting the axels and front suspension for play I found my drivers side rubber dampner to be damaged. It consists of a sleeve that wraps around the driveshaft and the weighted rubber cylinder. The cylinder has seperated from the sleeve, the connection is broken for about 1/2 the circle.

The noise has been getting worse, and when it first started I inspected my drivetrain/suspension for play and found nothing to be wrong. The dampner was not loose enough to get my attention. Is it possible that the dampner is being pulled from the shaft at speed and causing a viabration?

 

doesn't quite make snese

you feel a tapping in sync with a noise, even when the engine is off?

also

do you mean engine speed or vehicle speed when you say speed.

we'd love to help, but we're all so confused...

 

I'd love to elaborate!

The noise is relative to vehicle speed. The noise persists unchanged if you take the car out of gear and put it in neutral. The noise also remains unchanged if you turn the engine off.

Nothing about the noise changes based on anything i can do, other than my speed. The interval decreases in a linear manner with repsect to my speed.

I hope that helps a little.

 

what kinda tirs?
possible flat spots? high road force/ out of round?

Try rotating them front to back and see if it goes away or moves to the rear...

 

This narrows it down for sure!

Since it happens even when the engine is off, i'd say its either an unbalanced wheel, a messed up brake rotor, a bad CV or bent axle, or something wrong with the tranny.

My money is on an unbalanced wheel. It could also be a cracked or bent wheel, but unlikely.
Next would be rotors, then drums (dont forget about the back!)

After that i'm doubting the axles, but check CV boots, then possibly something with the tranny, a couple chipped teeth in a diff could do that.

Keep us posted!

 

it sounds like a bad tire except for the fact that he says the noise doesn't change if he accelerates or decelarates. you can usually hear the difference in speed with tires

 

This noise started when I swapped my block. Two tires were replaced while the car was down. If I rotate the tires around the noise does not change. Is that an indication that it is not the tires?

I took some pictures of the boots but once getting the drop light there for the camera they are in such good condition that it's not worth posting the pics.

 

if you turn the engine off, while the car is rolling, put it in neutural, and push the clutch in, then let it out, when would it be making the disturbance.

this should rule out the block, or mounts.

clutch related? prob not with the engine not turning though.

 

With the car rolling and in gear the noise can be heard.
With the car rolling in neutral and the motor on the noise can be heard.
With the car rolling w/ the motor off the noise can be heard.
The noise is the same for all circumstances.
As long as the clutch fluid is pressurized, you can feel the viabration. So if the fluid is not compressed, the viabration does not come through. Whether the clutch is all the way down or just a little down the same viabration is felt in the pedal.

As far as brakes go, wouldn't rotors cause viabration in the brake pedal (which is not felt as strongly as in the clutch pedal).

 

I ordered pads, will trade wheels tomarrow with a friend, and plan on having the rotors machined as soon as the pads get here.

At this point my best guesses are either wheel bearings, bad tire, or rotors.

 

Its fixed!

Thanks for your help honda tech!

 

what was it, dont leave us open-ened like that man, who was right?

 

My laggy *** + motor swap = flat spots on my tires.

 

Turns out I didn't lag quite enough to damage the tires. The noise persists.

Everything I said before applies still, regarding when the noise is heard.

I noticed that when turning right the noise gets louder and more aggressive.
When turning left the noise remains mostly unchanged.