what now

Do a search on "blue safety switch" -- should get you 29 threads that will give information about how to test the electrical power food chain to the K-Jet fuel pump.

Although, if the airflow metering plate only moves ~3/8" with no fuel pressure present, as you reported earlier, you might have bigger problems. K-Jet systems do not take long disuse periods well -- too many very small clearance/fits/openings that can get gummed up by fuel varnish/crud. But get the electrical working first, maybe with some use things may flush out/clean-up - if not, you'll be meeting Larry Fletcher (fletch62).

 

So are you now saying that the fuel pump electrics are actually OK (i.e., you've got +12V at the fuel pump when you should) and that the pump is seized?

The stock F K/KE-Jet fuel pumps are Bosch so no problem with who you buy it from, but if your old one is the stock 308i-2V fuel pump (the one with the internal check valve) I'm surprised that NAPA says that they can get it (but if they can, that would be fine). Or maybe your fuel pump and fuel lines were already updated to the later version Bosch fuel pump (with the external check valve) so that pump would be easier to match. If you do a search on "internal external check valve" that should get you some threads explaining the differences between the two Bosch fuel pump types (internal check valve vs external check valve) and the fuel line changes that are needed to use the external check valve type pump. Post #17 by Paul Newman in this thread:

http://ferrarichat.com/forum/showthread.php?t=189796

has some good pictures showing the differences when he made the change in pump types on his 512BBi (your old fuel lines might not be exactly the same shape, but the end connection issues where the line attaches to the check valve will be the same).

Do you have the 10-digit Bosch PN stamped into the case of your "bad" pump?

 

That Bosch PN is the internal check valve type pump, and they (Bosch) must be making them again because it's also available here:

www.importeccatalog.com (just type in that 10-digit Bosch PN in the search box and you'll get a jpeg to view/compare)

for $239 -- and it wasn't available from importec a few years ago IIRC.

The check valve is meant to prevent fuel from leaking back into the pump when under pressure, but I agree with your diagnosis -- if the check valve is letting fuel flow out of the pump at near-zero pressure, it must need replacement (which means getting a whole new pump because the internal check valve is not replaceable).

May you have continued good luck with your resurrection!

 

This pump is available from www.autohausaz.com for $112.00

http://www.autohausaz.com/search/product.aspx?sid=jx051tv3vf0g0xbguwwwg4zm&partnumber=0580254975

 

That is an excellent price, but that is the type with the external check valve (so would require fuel line changes to the banjo fitting too).

 

Earlier you mentioned doing the injectors. Sounds like they would've needed some love.
I guess you're getting a good look at your fuel lines 'while you're doing the rest'. Just a heads up Verell has a kit for them.
http://www.ferrarichat.com/forum/showthread.php?t=186689

 

IF, you have spark and fuel and compression at the right times it should try to run at least. One or more is either missing or at the wrong moment. The best procedure is to go back to basics. Confirm cam timing, check compression. then install fresh plugs, leave the pump fuse out, spray a little starter fluid into plenum, hopefully you will get a brief run period. that would confirm a fueling issue, but you must go back to basics, i revive several cars a year for folks, it's not a hard process when taken 1 step at a time.