runner74
Well-Known Member
Hello everyone
Want to do the valve seals on my 74 400. I did some back in the eighties but cannot remember if they are positive seals. Does anyone know?
What I mean is does the umbrella seal stay stationary on the guide or just go up and down on the stem? I looks like the newer design felpro has a deflector to exhaust and positive (stationary over the guide, and stem goes up and down in the seal)
Just need confirmation so I install properly.
Thanks
Want to do the valve seals on my 74 400. I did some back in the eighties but cannot remember if they are positive seals. Does anyone know?
What I mean is does the umbrella seal stay stationary on the guide or just go up and down on the stem? I looks like the newer design felpro has a deflector to exhaust and positive (stationary over the guide, and stem goes up and down in the seal)
Just need confirmation so I install properly.
Thanks
