SIRIUS VTEC

Hi

My cars got about 157k miles on it. Stock D16Y8 no mods.

The cars been running excellent. I had a bit of an exhaust leak but that may be besides the point, it's fixed.

This is the first time ive experienced this sound in my 6 months of ownership.

So it was pretty cold out last night i started my car up and i went into first gear and drove off. I engaged the clutch to slowly change the gear and as i released the gas to do that, I hear this metal scraping sound. So i try and see if it does it again and it does but only when coming off the gas.

I got home safely and i sat in the parking lot and gassed it up in neutral and i hear a major hiss it was so random.

This morning i went to go see if the scraping sound was still there so i started the car and popped the hood. Car was in neutral, i played with the throttle on the Intake Manifold and surely everytime i'd let go of the throttle id hear the scraping coming from in the engine bay. Ive got no idea where this sound is coming from but I am nervous its coming from the motor though i hope not.

I know before i bought the car it sat for 3 years undriven. Thats about it, theres no knocking that i can hear.

Any ideas?

Former User

Check for loose, cracked, bent, or damaged exhaust heat shields.

thabadguy

ISB?

H22AFerio

worn touque and or motor mounts?

SIRIUS VTEC

Hey, first I wanna thank you guys for the suggestions.

I did check everything. Its coming from the block for certain. I hear it more on the underside of the car from the oil pan. The cars still running excellent and the sound isnt that loud but it's definitely there. any ideas?

thabadguy

If you hold down the clutch & rev it does the sound go away?

H22AFerio

Yeah I didnt think about the clutch! It could be slipping as well good thinkin

redm3turbo

^ pretty sure if you press the clutch in and the noise goes away its the pressure plate...

bandit67

I agree with RonJ, sounds like a loose shield around the converter .......

TheToaster

iTrader: (1)

If it goes away with clutch down its the input shaft bearing. Flywheel? Wtf.

I'm rebuilding a spare tranny due to this problem in my SI. (z6)

"worn touque and or motor mounts?" Wth man?

H22AFerio

Not my car, but your right lol thanks anyway

If you have warn or torn motor mounts it will cause your motor to shift enough to hit and or scrap ****. I had torn front torque mounts in my old Hatch with a b20 Vtec and it had enough movment with the torn tourque mounts to hit my hood.

Former User

This^ (or one of the other transmission main bearings)

TheToaster

iTrader: (1)

Can you explain how a flywheel would make noise?

H22AFerio

Who in this thread said anything about a flywheel making noise? nobody. Lets stick to the topic at hand so we can help the OP get his car fixed thanks.

SIRIUS VTEC

Ok so that morning I went out to play with the throttle, the car was in neutral and I would still get the sounds. Is it even possible for it to be the transmission if the car wasn't in gear? I'll have the mounts checked out.

On another note, if it's a spun rod in the motor wouldn't it knock? I'm just asking in case this is the worst case scenario.

Former User

Answer this question ---> Does the sound go away when the clutch pedal is pushed down?

CDizzle_996

Throw out bearing?

chiprez

My car does the exact same thing, also durring accel. Pretty sure iys the input shaft main bearing.

SIRIUS VTEC

I'll get back to you with an answer in an hour after my drive to work.

SIRIUS VTEC

So i checked. I revved it up with the clutch pressed in and the sound still exist. I did it again in neutral with the pedal unpressed and it makes the sound. I took it to my mechanic and it didnt make the sound while he was pulling the throttle cable. Seems inconsistent. Any ideas?

SIRIUS VTEC

I also noticed, the longer I drive the car in a day the sound softens.

akarobbb

bump because I'm having the same issue

SIRIUS VTEC

Ok, So last night Im starting my car in the cold and the came scraping sound is happening in neutral without me pressing on any pedals. So it's doing it on it's own now and it sounds very sporadic.

SIRIUS VTEC

Do you think it could be the Head? maybe I need a valve adjustment?

motegicivic

Chances are the valves will not make that noise. Sounds like an exterior rubbing noise.