CorvAircraft> corvair mechanical fuel pump

[601corvair]

Ok guys I’ve read some more of the history on this.  Both on the corvair  and  the zenith lists and I have come to the understanding that the reason for not utilizing the corvair mechanical fuel pump is because of  pump failure and failure mode.  My understanding is that when it fails it can dump fuel into the case causing problems.  I have had a pump failure on my old 225 car engine.  In that case the diaphragm started to leak.  The mechanical part of the pump was fine.  I am assuming the corvair fails the same way. Now, for the question.  Is it possible to rebuild the mechanical pump with a more modern material and avoid the failure?  By the way, I am assuming that when a mechanical pump fails that a back up electrical pump can still push fuel through it.  Thanks phill.

       
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