 Fuel Pump Questions, Was: FI Wiring Question |
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| ThinAir |
 May 12 2003, 11:10 PM
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Best friends  Group: Members Posts: 2,542 Joined: 4-February 03 From: Flagstaff, AZ Member No.: 231 Region Association: Southwest Region 
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It looks like I've got a bad pump. Everything is plumbed to match Dave Darling's hose diagram and I've checked it against a known good 73. To be sure, I did some additional testing.
The connector that is closest to the electrical hookup is the one that has the T on it to connect to the return line in the tunnel and to the fuel pressure regulator. I'm testing by hooking the gauge directly to the center outlet of the pump. If I clamp between the T and the fuel pressure regulator, I get about 1 psi on the gauge. If I clamp between the T and the tube in the tunnel, I get about 10 psi. If I test with no lines clamped, I get about 5 psi. I bought this pump a few months back and have never used it until now. The Haynes manual says that the pre-72 and 72-74 pumps are "similar". I don't know for sure what year this one came out of. Does anyone know if there are any differences between pumps? Like, should the two "outside" hose connections be reversed? Does any of this information give anyone a clue about what is going on? |
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Posts in this topic
ThinAir914 Fuel Pump Questions May 12 2003, 11:10 PM
ThinAir914 Anybody ever try an MSD pump as a replacement?
htt... May 13 2003, 12:15 AM Brad Roberts WOW.
I like it. I paid close to 500$ for my ... May 13 2003, 12:18 AM Mike9142.0 Can you just take the return from the press regula... May 13 2003, 12:24 AM Brad Roberts Correct a mundo. Take it straight from the regulat... May 13 2003, 12:26 AM Mike9142.0 Thanks Brad. May 13 2003, 12:29 AM ThinAir914 Cool. I've got a Bosch pump # 0580463010 that... May 13 2003, 12:51 AM Gint It sounds a lot to me like you have a factory /6 p... May 13 2003, 07:40 AM Dave_Darling The stock pumps (70-74) have small labels next to ... May 13 2003, 11:25 AM
ThinAir914 It's ALIVE!!!!
Sure enough, t... May 13 2003, 09:36 PM  |
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