Do you trust scarf cut sealing rings for input shaft?

[chevrol8t]

Hello all! I am in the middle of finally rebuilding my 4l60e. Nothing wrong just creeping up on 300k and figure it's time for a "freshen up." Anyway in regards to the input shaft four sealing rings I know you have two types. The Teflon solid rings and the Teflon scarf cut. I was wondering what some of you opinion on scarf cut rings, to try and make my life a bit easier? Do you trust it to properly seal? So far the "internet talk" I've seen is between "they work" and "they work okay, as long as you don't add horsepower?" So I'm wondering from anyone here who did a rebuild would give their opinion?

Thanks!

 

[wjburken]

Hello all! I am in the middle of finally rebuilding my 4l60e. Nothing wrong just creeping up on 300k and figure it's time for a "freshen up." Anyway in regards to the input shaft four sealing rings I know you have two types. The Teflon solid rings and the Teflon scarf cut. I was wondering what some of you opinion on scarf cut rings, to try and make my life a bit easier? Do you trust it to properly seal? So far the "internet talk" I've seen is between "they work" and "they work okay, as long as you don't add horsepower?" So I'm wondering from anyone here who did a rebuild would give their opinion?

Thanks!

In my experience designing automated equipment, I’ve used scarf cut “seals” when I need them to be more of a bushing/bearing than a seal or as a backer for an o-ring seal. The scarf cut allows it to expand without binding on the shaft. It would have to be a pretty precise scarf cut, in my opinion, for a scarf cut seal to be the actual seal. That being said, I do see a number of places selling them for that purpose.

 

[chevrol8t]

In my experience designing automated equipment, I’ve used scarf cut “seals” when I need them to be more of a bushing/bearing than a seal or as a backer for an o-ring seal. The scarf cut allows it to expand without binding on the shaft. It would have to be a pretty precise scarf cut, in my opinion, for a scarf cut seal to be the actual seal. That being said, I do see a number of places selling them for that purpose.

Thank you. After some thought and some "peace of mind" I will go with the solid Teflon rings.