Ray Goree wrote: > I have an 1835 VW engine, with a Facet fuel pump feeding into a Bosch mechanical fuel pump. to an EFS-2.. > Will fuel flow through the mech, pump when it (the Bosch) is not pumping?
Probably, but it depends on why the Bosch isn't pumping. If the diaphragm is torn, the fuel may just pump into the engine case. Fortunately that's fairly rare, especially with a new pump. It would probably be safer to do the usual isolation of the two systems using check valves. Having said that, I know of people doing it that way. You need to be careful that you're not feeding too much pressure to the EFS-2 though, as the two would be additive to some extent. I'll also confess to not having taken one of the modern (1970's) VW fuel pumps apart, since I think they are crimped or otherwise difficult to get apart (and I just toss 'em and either buy a new one or use a Facet anyway), so I really have no idea what I'm talking about... just talking generalities... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net --------------------------------------------------------------
