buzzing engine noise. Help!

[Steve Tinker]

Looks something like soft gasket material, at least there are no metal specks, but.....
If it was me, the next step would be to remove the sump (oil pan) and inspect the debris laying in the bottom. Not a difficult job +/- 16/18 bolts.

[heiwaz]

Originally Posted by Steve Tinker

the next step would be to remove the sump (oil pan) and inspect the debris laying in the bottom.

Ok, I will do it tomorrow, but do you know if the sump has got gasket, and if it need to be replaced once is open?. thanks

[yelojkt]

Your IMS bearing may not look bad from under the cover but the inside seal could have failed allowing oil to wash out the grease in the bearing. Was there any kind of oil leaking from the bearing?

[heiwaz]

Originally Posted by yelojkt

Your IMS bearing may not look bad from under the cover but the inside seal could have failed allowing oil to wash out the grease in the bearing. Was there any kind of oil leaking from the bearing?

I have removed the IMS bearing to install the LNE, and the old bearing was in good condition.

[heiwaz]

I've removed the oil sump and the only things I found is the same gasket particles. This particles came from the sump gasket.







Otherwise, I discovered that one chain tensioner is harder than the other when you push it. I start a new post whith this issue:

http://986forum.com/forums/showthread.php?t=26941





.

[heiwaz]

I think, finally find the problem of the buzzing noise.

I removed the spark plugs, and found in the spark tube (1) ans stranger particle non metallic, I hit with a hammer and it broke in 3 pieces. I believe is a little stone and it done a vibration doing the noise. Do you think is it possible?
In this spark tube had an oil leak inside, too.