Whats the critera for a rebuildable 3 port pump?, Insidea Bosch 3-port Bosch FI Fuel Pump D580463009 |
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Whats the critera for a rebuildable 3 port pump?, Insidea Bosch 3-port Bosch FI Fuel Pump D580463009 |
Superhawk996 |
Mar 1 2020, 06:49 PM
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#1
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914 Guru Group: Members Posts: 5,882 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
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 |
stownsen914 |
Mar 1 2020, 06:57 PM
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#2
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
I rebuilt a Bosch fuel pump from a Mercedes a few years ago. The only issue was that it leaked. Turns out it leaked in a couple places. I replaced the seal where the pump body meets the head of the pump, and also a seal where the electrical connector studs are. Both seals were hard as a rock. Pump works perfectly with no leaks after replacing the seals.
There are some DIY threads over on the Pelican board from guys rebuilding early 911 fuel pumps, which are very similar to the 914 pumps. |
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