Fuel pump questions

demo marchil at usa.net
Tue Dec 17 13:52:27 GMT 1996


Don't know how to rebuild a fuel pump but i have bought a Carter P70199
witch is a universal hi pressure
external fuel pump, max pressure is 95 psi don't remember the flow rating
but it was pretty good, it cost me $125Can  about $85Us .





>Lets talk about fuel pumps. In specifc, the early model Datsun 280Z pump.
>This is a Bosch unit used on the L-Jetronic (and other) EFI systems. The
>standard DC motor with a roller vane pump type, mounted outside of tank. I
>had a leaking O-ring on the pump, so I took the four screws out and replaced
>the ring. Now the pump will run, but it will not develop any pressure (not
>enough to open the pressure regulator on the FI system). It's also a monster
>to prime now.
>
>Yes, I did mark the pump housing and assembled it back as original.
>Yes, I did reinstall the roller vanes. None of the check valves were stuck.
>
>I would just say that the pump is bad But, in the past, when ever I opened
>one of these pumps and reassembled it, it never worked properly again.
>
>What's the trick to servicing these pumps??  Last price check was ~$200.00
each.
>
>What other popular cars (American sold) used this external fuel pump?
>
>GMD
>
>

// Marchildon at usa.net                                            //
// Alain Marchildon                                              //
// 1984 Mazda RX-7 GSL-SE Soon with Vortech supercharger "My toy //
// 1989 BMW 325IX "Family car"                                   //




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