Crack in the breather cover?

[apopleptic]

I was in the process of degunking my engine covers when I noticed this

Notice all the hairline cracks?

Here is a picture after I removed the thing from the simple green and washed it clean


Just how freaked out should I be by this?

[Adler]

Doesn't look good, Id replace it. Luckily a new (used) breather cover can be had on ebay for around $15 shipped.

[apopleptic]

Doesn't look good, Id replace it. Luckily a new (used) breather cover can be had on ebay for around $15 shipped.

I saw they're pretty cheap, but what would cause that kind of cracking?
it seems like a low pressure spot, but they seem like stress cracks.
They don't even look like they are in a spot (mostly) that would be cause by over torque issues.

[GregT]

"They all do that, sir " I've got probably 5 or 6 of those covers here off twins and fours all of which have one corner broken off.
Thick gasket and thin casting.....

[apopleptic]

Haha, so not an indicator of the whole engine being made of cracks?
I was worried because some of the cracks really just seem to be in the middle of the thing. like it was hit with a hammer alot, but delicately...

[Coady]

Haha, so not an indicator of the whole engine being made of cracks?
I was worried because some of the cracks really just seem to be in the middle of the thing. like it was hit with a hammer alot, but delicately...

I managed to crack one on my gsx250 by re-using an old gasket that was slighly worn on one corner. That was with a torque wrench too so they can be quite delicate.