<VV> Fuel Pumps and Vapor Lock WAS Self Pity and Whining

[Norman C. Witte]

FWIW, this is a new fuel pump supplied by one of our excellent Corvair
vendors.  Doesn't mean it's not suspect.... 

Norm 

SNIP

I have had more than one fuel pump that gave all
> the classic symptoms of vapor lock, and yet turned out to be a weak fuel
> pump problem due to failing check valve discs in the pump.  They were
> crumbling and flaking away.  In one case I was traveling cross country.
> Every time I stopped for fuel, I would get about a half mile down the road
> and the engine would stager to a stop.  Application of cold water and ice
> and it would start right back up.  A replacement of the pump cured the
> problem which was proven on the bench back at home.  Anything that causes
> poor fuel delivery can imitate vapor lock to a certain extent.