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Superhawk996 |
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#1
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,908 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 ![]() ![]() |
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914Sixer |
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#2
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,908 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region ![]() ![]() |
I have never attempted to build one. I just send them to a guy that has 35 years experience doing VW type 3 fuel injection stuff.
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Morph914 |
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#3
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Member ![]() ![]() Group: Members Posts: 435 Joined: 22-August 16 From: St Augustine, FL Member No.: 20,326 Region Association: South East States ![]() ![]() |
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Superhawk996 |
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#4
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,908 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch ![]() ![]() |
I have never attempted to build one. I just send them to a guy that has 35 years experience doing VW type 3 fuel injection stuff. Can you please give the contact info for this service, as I have one I would like to have resealed. Cheers, John Mark has ad up on FS/WTB where he can send yours out to his guy $299 shipped. Honestly that is a cheap relative to Auto Atlanta's service at $395. I suspect either of these sources will do a great job. What I was looking for is more info on how to tell if the core is even worth sending for a rebuild. Mine has a commutator that is pretty worn, burshes are about 50% used up, and obviously there is a lot of resudual rust / garbage debris that was in this pump that is surely gumming up the pressure bypass piston. I haven't had time to get over to Pelican forums but will take a peek to see what the 911 guys are doing. After disassembling this one, I can tell you that it won't be an easy task to rebuild properly especially to replace brushes and to resurface the commutator. Given that the whole pump electrical side is immeresed in the pumped liquid for cooling, this would be a challenging component rebuild that I really don't have the time to take on while my chassis is still not done. |
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