Chewing seals

[Webmaster]

Car is 2008 e90 320i man on 150k. Cover off at 2pm on a Friday. On the drive home lots of magic smoke began its escape from the bonnet. So I went straight to the garage to investigate.
Tappet cover off and voila. A section of seal all minced up.

Is this damage from over tightening or just a manufacturing defect? Can one really over tighten a tappet cover to squash the seal so?

On the plus side, the engine is pretty clean for 150k.

Big ups to Multi-Tech Auto for doing the job as I type this.


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[Webmaster]

So, anyone? Can a tappet cover be over tightened to the point of rupturing the seal? Really curious here...


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[Nella11]

I would rather say that seal was pinched. ..

 

[Gizmo]

No doubt that seal was pinched upon installation.

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Did they reuse the original tappet cover seal?

 

[Webmaster]

No doubt that seal was pinched upon installation.

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Did they reuse the original tappet cover seal?

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Not sure if original seal. It came from Goldwagen.