Strange sound like knock !!???? M5 f10

[dsouth]

That's a rod knock. Either buy used motor or rebuild if you plan on upping the hp.

[Xx 335Mangaki xX]

Are the below sounds normal or the beginning stages of the above?

[v3n0m]

Originally Posted by Xx 335Mangaki xX

Are the below sounds normal or the beginning stages of the above?

Originally Posted by Xx 335Mangaki xX

Are the below sounds normal or the beginning stages of the above?

Sounds like normal injector noise to me.

[wheelpro]

Originally Posted by Xx 335Mangaki xX

Are the below sounds normal or the beginning stages of the above?

Thats normal
Sound from injectors and hpfp

[wheelpro]

Originally Posted by josec70

For your sake I hope you're right.

Hop too

[black-n54]

my brothers M6 had also these noises and I was thinking its normal.

We test the compression of all cylinders and see cylinder 5 had only 6 bar.

We get a new engine from warranty, so please guys if you hear strange noises like these, that isnt normal!!

[wheelpro]

Originally Posted by black-n54

my brothers M6 had also these noises and I was thinking its normal.

We test the compression of all cylinders and see cylinder 5 had only 6 bar.

We get a new engine from warranty, so please guys if you hear strange noises like these, that isnt normal!!

Thanks bro
I think now time to rebuild

[TrevorM3]

you might want to find out how this actually happened.. before you run and build a motor... just saying.

[black-n54]

Originally Posted by wheelpro

Thanks bro
I think now time to rebuild

bro you can test the compression so do that first please

[wheelpro]

Compression test good
I found something else

[MpowerMike]

What is that ?

[wheelpro]

Originally Posted by MpowerMike

What is that ?

Gasket manifold

[ARC550]

Originally Posted by wheelpro

Gasket manifold

Holy shit! Lol
So compression good?! Then engine good!!

How did you come to check the gaskets?

[wheelpro]

Originally Posted by ARC550

Holy shit! Lol
So compression good?! Then engine good!!

How did you come to check the gaskets?

I checked sound when removed dp cover
And sound going clear
Removed manifold
Found gasket like picture

[allmotor_2000]

Don't see how a leaky gasket is going to make such a loud mechanical sound. Have you ever removed your manifolds? There is no way the gasket can disintegrate like that.

[wheelpro]

Originally Posted by allmotor_2000

Don't see how a leaky gasket is going to make such a loud mechanical sound. Have you ever removed your manifolds? There is no way the gasket can disintegrate like that.

I. CHanged gasket
Sound gone
Engine. Sound ok
I know tgus case very strange
And i am lucky man
Thanks god for help 🙏

[allmotor_2000]

Glad to hear but I still can't understand how the motor will make that kind of a sound. There is an issue on the eccentric lobes for the cams that wear out... causing that sound.

[wheelpro]

Originally Posted by allmotor_2000

Glad to hear but I still can't understand how the motor will make that kind of a sound. There is an issue on the eccentric lobes for the cams that wear out... causing that sound.

Sound looki like both bro
Knocking and manifold leak
Specially when one of cylinders leakege out
You can hear it
And search for manifold leak on google you can hear same sound

[finlandm5f10]

Originally Posted by wheelpro

May be exhaust manafol leak

Yes. it is.

[KMORGSM5]

Good to hear it was just a gasket and not what happened to my engine

[finlandm5f10]

Originally Posted by wheelpro

Compression test good
I found something else

post new video engine sound...

[wheelpro]

Ok