new owner '74 TCS misc ?

[Lumbes]

I like the idea of setting up cameras to record it happening during a short drive so thank you for the good idea Dreamer.  Might be a bit of a setup but maybe a go pro with cellophane covering the lens mounted somewhere low to capture the fuel pump area.
Obviously I will be continue to investigate and will update any findings or revelations.  Thanks to all for chiming in. 

[jbcollier]

There is a seal that helps keep oil away from the pump diaphragm:

http://www.lotus-europa.com/manuals/tcparts/e/eh.htm

This may be worn.  More likely is that your engine has excessive blow-by which is pressurizing the block and pushing oil out.

[Lumbes]

Thank you JB.  I am continually out of my depth so I have a question for you.  With an engine that was fully rebuilt under a year and a half ago it shouldn't be experiencing excessive blow by right?  I have put less than a 1000 miles on it.  New pistons, cams, porting, etc (fuel pump rebuilt) really the works.  The engine was up rated to 150 hp at the crank so is there a chance the original glass bowl fuel pump is not up to the task?
I think my first step will be to rebuild the fuel pump and see what the results are.  If results are no better then It may lead to me replacing the pump altogether with a different one and going from there.