Valve Stem Oil Seals
A rubber umbrella type oil seal is installed on valve stem before valve spring is installed.
VALVE SPRINGS
| Engine |
Free Length In. (mm) |
PRESSURE Lbs.@In. (kg @mm) |
| Valve Closed |
Valve Open |
| 1969-73 |
1.713 (43.5) |
64@1.48 (29@37.6) |
154@1.12 (70@28.5) |