Fuel pump options for 73 injected model |
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Fuel pump options for 73 injected model |
maddhatter |
Jul 5 2011, 11:20 AM
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#1
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Newbie Group: Members Posts: 7 Joined: 5-July 11 From: Clementon, NJ Member No.: 13,279 Region Association: None |
I recently picked up a 73 1.7 that had been stored inside for 20 years. The body is great as expected sitting inside, but the fuel pump does not work among other things and looking for a replacement I see that they are no longer made. Great! Can I retrofit a later model pump to fit my car? I thought the injection systems were pretty much the same all the way through the years, but the newer pumps look vastly different from my hunk of metal pump, mine having 3 hose connections and the newer ones only the typical two. Thanks in advance.
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Prospectfarms |
Jul 5 2011, 07:54 PM
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#2
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Member Group: Members Posts: 495 Joined: 7-March 11 From: Louisville, KY Member No.: 12,801 Region Association: Upper MidWest |
Returning to the OP, you can place your old pump in a bucket of diesel fuel, reverse the polarity from leads attached to a 12 volt battery and watch all the crud blow out.
I did that and it worked for a couple of months. When it failed again, I meticulously checked every in-line pump from NAPA until I came across the $30 version with the correct flow and pressure: http://www.914world.com/bbs2/index.php?s=&...t&p=1494564 I installed it in its normal place in the engine compartment. Works perfectly. Regarding the pump location: What's up with the vapor lock theory? Its conventional wisdom to relocate the pump to the front -- the stock position in the later models -- but Cap'n Krusty has some good points against it. I agree. The return flow to the tank from the engine means that the fuel pump is liquid cooled. After driving fast and slow at 93 degree ambient temp and 80 % humidity, a few days ago, the pump felt cool to the touch. Regarding pulling the tank: I'm afraid you must unless the tank was carefully drained 20 years ago, and remains rust free today. Unlikely. If you don't pull it off and clean it out (then line it with Red-kote) it will remain a constant source of potential trouble. Good luck. |
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