Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 454 umbrella valve seals
View Single Post
  #5 (permalink)  
Old 04-23-2013, 03:40 PM
ss396si's Avatar
ss396si ss396si is offline
Last photo:
Join Date: Feb 2005
Location: ny
Age: 38
Posts: 252
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
Originally Posted by oldbogie View Post
Umbrella seals are not so much a seal as a shield that rides on the valve stem to deflect oil away from the stem and upper guide. It is not intended to cover nor attach to the upper guide. See first attached picture.

Items that actually make a seal between the stem and guide require the guide OD be machined to a specific diameter, they then slide down that machined surface and are friction retained by a metal clamping device. The stem fits through the seal which wipes the stem but does not ride with it.
See second attached picture.

Thank you, all I have to do is slide the seal on the valve stem down to it stops at the upper guide.
Reply With Quote