- Joined
- October 5, 2008
- Messages
- 3,152
- Reaction score
- 446
- Location
- Humid, Damp, and Hot
- City, State
- Houston, TX
- Year, Model & Trim Level
- '98 EB, '93 Limited
Found the seals they used:
usseal-eok.com
Actual Dimensions:
Way too big in the OD to clearance the inner spring. No wonder the engine was making that ticking noise with half the exhaust seals unseated. Damn glad it bothered me enough to tear into it this far. On the upside, I'm now learning how to install valve seals and springs; gotta take the good with the bad.
Going forward, I measured the spring seat (I guess it's called) and it has a .517 OD.
As that OD is in between a .502 and .530 you could go with either size valve seal depending on how tight you wanted the fit. @410Fortune , I'm assuming you went with the .530 to minimize the chance the PTFE seal wouldn't crack during install?
I'm not really wanting to futz with PTFE seals as a) they are difficult to install and you have to do them just right not to break them. (I have enough headaches without having to deal with a broken seal) and b) Viton is cheaper and easier to install, so I am looking at these on Summit:
These have the .500 valve guide diameter and have an OD of .546, so plenty of clearance for the inner spring.
The other option is these with the .530 diameter and an OD of .575
Thoughts?
VS-305V - Seals by Size
<p>Rubber Positive Valve Stem Seal with Supreme FKM Rubber. Fits a Valve Stem of 11/32" and a valve guide of .562"</p> <p><span style="font-size: medium;"><strong>Actual Dimensions:</strong></span></p> <table border="0"> <tbody> <tr> <td style="text-

Actual Dimensions:
Stem | Guide | Width | Height |
.307 | .483 | .696 | .480 |
Way too big in the OD to clearance the inner spring. No wonder the engine was making that ticking noise with half the exhaust seals unseated. Damn glad it bothered me enough to tear into it this far. On the upside, I'm now learning how to install valve seals and springs; gotta take the good with the bad.
Going forward, I measured the spring seat (I guess it's called) and it has a .517 OD.
As that OD is in between a .502 and .530 you could go with either size valve seal depending on how tight you wanted the fit. @410Fortune , I'm assuming you went with the .530 to minimize the chance the PTFE seal wouldn't crack during install?
I'm not really wanting to futz with PTFE seals as a) they are difficult to install and you have to do them just right not to break them. (I have enough headaches without having to deal with a broken seal) and b) Viton is cheaper and easier to install, so I am looking at these on Summit:
These have the .500 valve guide diameter and have an OD of .546, so plenty of clearance for the inner spring.
The other option is these with the .530 diameter and an OD of .575
Thoughts?