Post rod bearings been done, weird sound

[Spun Crankhub]

Originally Posted by panda-R

Chill out.

You chill out, hoser. Go grab a Labat Blue and relax bud.

[panda-R]

Originally Posted by TacoChris

You chill out, hoser. Go grab a Labat Blue and relax bud.

Are you done feeling special?

[bosse92m3]

Hey guys, thanks to everyone for the comments, I have read them all and will be posting a video of it with the hood open and different angles in the next couple hours.

Did drive it briefly today and the sound seemed to be intermittent. Sometimes I could hear it and other times it was really quiet (what I would call normal noise).

While driving it seems to disappear but that could be due to the fact that the exhaust over powers it.
On idle it was there around 50 percent of the time.

If it was bearing related I feel like it would be there all the time but I m no expert.
Will have video up shortly...

[deansbimmer]

These engines are noisy, and each S65 sounds slightly different to boot. It's far too easy to get caught up in paranoia. You've replaced the bearings so just drive it and stop worrying.

[bosse92m3]

As promised here's a video of the car with the bonnet open.

The video starts with cold start but i ve just put that in there as an extra, I know cold starts make all sorts of noises.
All videos after that the car has been driven and is up to temp.
From the engine bay the sound is not very loud, but you can definitely hear it when you listen form the front wheels.

[M3LISSA]

Originally Posted by bosse92m3

Hahah this one has me baffled, is yours a 6mt?
I was thinking possibly clutch or flywheel but the noise doesn't go away when I push clutch in.
Also probably should mention the car was sitting for about 2 weeks before I took it for a drive and heard this noise

I am not manual. It's weird cause I think I only sort of hear it in my garage when the walls are close to me, not necessarily outside... maybe I'm paranoid.

[shmad]

that sounds like exhaust leak to me

[bosse92m3]

Originally Posted by M3LISSA

I am not manual. It's weird cause I think I only sort of hear it in my garage when the walls are close to me, not necessarily outside... maybe I'm paranoid.

I hear it louder too when in closer spaces, but I don't think your paranoid. The noise is there!
But from all the reading up on it and from what a lot of people have said here, it s nothing to really worry about!
That being said i still would like to find out what it is as it was definitely not there before...

[bosse92m3]

Originally Posted by shmad

that sounds like exhaust leak to me

Hopefully, but would and exhaust leak come and go or is it consistent? Cheers

[shmad]

Originally Posted by bosse92m3

Hopefully, but would and exhaust leak come and go or is it consistent? Cheers

from the first video i cant tell, but the second video sounds like a leak. the sound would be consistent but you might not hear it higher in the RPM bc of engine noise/muffler exhaust noise.

[Bartledoo]

Originally Posted by bosse92m3

Hopefully, but would and exhaust leak come and go or is it consistent? Cheers

The seal at each joint can improve due to thermal expansion, and vice versa. Worth checking since you can easily get under there with the engine running.

[M3LISSA]

Originally Posted by bosse92m3

I hear it louder too when in closer spaces, but I don't think your paranoid. The noise is there!
But from all the reading up on it and from what a lot of people have said here, it s nothing to really worry about!
That being said i still would like to find out what it is as it was definitely not there before...

Agreed. Nothing major so that helps calm me. I do want to check the exhaust leak issue. My gut instinct tells me this is probably the issue... I don't know how to figure that out though being that I'm not actually under the car(nor do I want to be) lol

[bosse92m3]

Originally Posted by M3LISSA

Agreed. Nothing major so that helps calm me. I do want to check the exhaust leak issue. My gut instinct tells me this is probably the issue... I don't know how to figure that out though being that I'm not actually under the car(nor do I want to be) lol

I m leaning toward that too, have had s few people say it and it does sound like a leak. Hahah get someone else under there, I m thinking of just going to my local shop and getting them to lift it and look. I ll keep u updated

[M3LISSA]

Originally Posted by bosse92m3

I m leaning toward that too, have had s few people say it and it does sound like a leak. Hahah get someone else under there, I m thinking of just going to my local shop and getting them to lift it and look. I ll keep u updated

Ok. Feel free to dm me. Idk when I can get under the car. I have jack stands and ramps, but I get the heebeegeebys when I go under a car... I can do anything else.. lol

[Bartledoo]

Originally Posted by M3LISSA

Ok. Feel free to dm me. Idk when I can get under the car. I have jack stands and ramps, but I get the heebeegeebys when I go under a car... I can do anything else.. lol

Just drive one side up onto a curb and slide under. No reason to feel unsafe in that scenario.

[M3LISSA]

Originally Posted by Bartledoo

Just drive one side up onto a curb and slide under. No reason to feel unsafe in that scenario.

Lmao

[Dave07997S]

Originally Posted by bosse92m3

Hopefully, but would and exhaust leak come and go or is it consistent? Cheers

Exhaust leaks can be intermittent, depending on the severity of the leak. As the exhaust heats up it expands and can help seal the leak. Once again depending on the severity. This is especially true at the header to lead pipe.


Dave

[///M Power-Belgium]

Originally Posted by M3LISSA

Ok. Feel free to dm me. Idk when I can get under the car. I have jack stands and ramps, but I get the heebeegeebys when I go under a car... I can do anything else.. lol

No pain ...No gain !

[bosse92m3]

Originally Posted by Dave07997S

Exhaust leaks can be intermittent, depending on the severity of the leak. As the exhaust heats up it expands and can help seal the leak. Once again depending on the severity. This is especially true at the header to lead pipe.


Dave

Thanks Dave makes sense!!

[Ximian]

Originally Posted by Bartledoo

Just drive one side up onto a curb and slide under. No reason to feel unsafe in that scenario.

What about sinkholes!?

bosse92m3 As for the noise, what oil are you using? I'm assuming it's brand new after the RB change.

[Cbozz]

sounds just normal

[bosse92m3]

Originally Posted by Ximian

What about sinkholes!?

bosse92m3 As for the noise, what oil are you using? I'm assuming it's brand new after the RB change.

Shop that did bearings used normal castrol 10w-60. Yes fresh oil after changing them