Thread: Umbrella seals and dual valve springs

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Hi everyone. I have a 327 bored .040 over with less than 6000 miles on it. I plan to get new heads ( 2.02 / 1.6 ) With the old heads (now removed ) I had smoke out the back.
Here's the question: I have dual valve springs with umbrella seals, and noticed that the umbrellas themselves have "crawled" up the valve itself leaving the area where the valve and the guide meet. Is this due to the inner spring causing it to come up? I am thinking this is where oil may be allowed to run down the guide and cause the smoke. It seems the whole idea of the umbrella seals is not working with this combo. Basically all the umbrella seals are doing the same thing.
I plan to get the better heads any way, but want to be sure before I get a new set. Unless the piston rings aren't seated properly? I hope not. Could it be blow by? Thanks for any advice.

How much lift are you running on the cam? Remember, the umbrella seal sticks to the valve stem, a high lift cam will cause the seal to ride higher on the valve stem. Food for thought.

My cam has a lift of 485

Also, not all the umbrella seals are in the same place; some are higher than others, some are lower. All I can say is it seems that the seals are not "sealing" due to their current locations. I'm not an expert, but it seems to be due to the inner springs, but I'll give a listen to all replys respectfully.