Whats the critera for a rebuildable 3 port pump?, Insidea Bosch 3-port Bosch FI Fuel Pump D580463009 Options

[Superhawk996]

I have a 3 port Bosch FI pump D580463009 that came to me along with some other FI parts I purchased long ago. It had clearly been molested previously.

I decided to power it up. Yup, motor runs.

I decided to see if it would actually pump some alcohol since I didn't want to risk gasoline. Good thing . . . it leaks like a sieve.

Having nothing to lose, I decided to disassemble it. There was massive leakage out of the motor housing and the large O-ring that goes between the pump rotor base and the DC electric motor housing was clearly torn and rolled when I disassembed it and this is where the bulk of the leakage was coming from.

I'm wondering if someone can advise on what the criteria is for a core / rebuildable part since these clearly aren't cheap to rebuild nor are they easy to come by.

@914sixer
@dr914@autoatlanta.com

Here are some pictures for those curious about the intertnals of a 3 port rotor pump.

Rotor inlet & outlet housing:


Pump rotor and vanes:




The motor rotor, windings, and brushes:



And finally the inside of the motor housing / stator permanent magnets