New pushrod tube seals?

[bob turner]

A friend has three cylinders converted to some complicated looking spring loaded pushrod tubes. Most seem to be leaking at the tappet end. The original cylinder is dry.

Anybody familiar with these tube mods?

Oh - ps - Continental C-90.

 

[dnnewman]

 

[bob turner]

 

[dnnewman]

 

[bob turner]

 

[iflypby]

 

[iflypby]

 

[Cub Builder]

 

[bob turner]

 

[reileyr]