This test was performed with a quality decibel meter with the upper limit set at 80db, and my new leak/ pressure tester. The psi setting for the test was 90lb. This old boy does not hear as well as he used to. Rocker shaft was removed, tapped on the valves and they are springy.
Marvel Mystery Oil soak the top end for a few days.

Cylinder # 1, 84db @ draft tube, 64db @ ext, 65db @ carb
Cylinder # 2, 74db @ draft tube
Cylinder # 3, 72db @ draft tube, 72db @ ext
Cylinder # 4, 72db @ draft Tube, 60db @ ext
Cylinder # 5, 70db @ draft tube, 62db @ ext
Cylinder # 6, 74db @ draft tube, 64db @ ext

This thing leaks like a sieve, the sound was very noticeable in the bottom end, funny that only 1 cylinder leaked into the intake valve.

I believe it’s time to tear it down and off to the Machine Shop. Any input would be great.

Shade Baby
Attachments
CYLINDER #1.jpeg (232.55 KB, 28 downloads)
CYLINDER #2.jpeg (272.79 KB, 27 downloads)
CYLINDER #3.jpeg (206.57 KB, 27 downloads)
CYLINDER #4.jpeg (257.47 KB, 27 downloads)
CYLINDER #5.jpeg (279.54 KB, 26 downloads)
CYLINDER $6.jpeg (273.65 KB, 27 downloads)

1950 Model 3104 5-Window
"Back In Time"
Follow in the DITY