 Bleed injection? Newby to FI and 914s |
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| Robson51 |
 Dec 7 2019, 06:38 PM
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#1
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Member  Group: Members Posts: 88 Joined: 18-November 19 From: seattle Member No.: 23,654 Region Association: Pacific Northwest  |
We removed and cleaned the fuel tank in my son's new to him 914. Also changed the fuel lines to stainless steel. Other than setting valves, nothing mechanical or electrical was done. Ran fine when parked a month ago.
He tried to start the car and nothing. I'm suspecting fuel, but I am new to fuel injection and don't know where to start, except to see that fuel is reaching the fuel pump. (I'm a webers on 912 guy) Does the injection system have to be bled when it has been reduced to bone dry empty like this? How is that done? A search of the threads has turned up nothing. This will be tomorrow's project. Thanks- Rob |
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| Specracer |
Dec 8 2019, 06:33 AM
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Member Group: Members Posts: 100 Joined: 27-March 17 From: SE Mass Member No.: 20,970 Region Association: None |
The reason you dont need to bleed is that there is a return path, self bleeding.
My story, I have a 1.7, the PO moved the 3 port pump up to the front. Before the year or so restoration I have been doing, I got the car running in this configuration. Fast forward to some period of time during reassembly, I re plumed, the 3 port (all new lines), wont run. Note when I got the car initially running, I took the pump apart, cleaned it, and even bench tested and ran it. I have no idea what happened to the 3 port, during the year of sitting, but I cut my losses and switched to a new 2 port, re plumed, and now it runs again. |
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| Chris914n6 |
Dec 8 2019, 11:28 AM
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Jackstands are my life. Group: Members Posts: 3,328 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
QUOTE(Specracer @ Dec 8 2019, 04:33 AM)  The reason you dont need to bleed is that there is a return path, self bleeding. My story, I have a 1.7, the PO moved the 3 port pump up to the front. Before the year or so restoration I have been doing, I got the car running in this configuration. Fast forward to some period of time during reassembly, I re plumed, the 3 port (all new lines), wont run. Note when I got the car initially running, I took the pump apart, cleaned it, and even bench tested and ran it. I have no idea what happened to the 3 port, during the year of sitting, but I cut my losses and switched to a new 2 port, re plumed, and now it runs again. I recently picked up a recently used 3 port from a member. Did a quick test to verify it worked before putting it on the shelf and it was stuck. A few minutes of switching leads got it free. Evidently our wonderful ethanol blended gas gummed up the works as part of it evaporated. |
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Posts in this topic
Robson51 Bleed injection? Newby to FI and 914s Dec 7 2019, 06:38 PM
dlee6204 No bleeding necessary. First I would check to se... Dec 7 2019, 06:41 PM PanelBilly Welcome to the group Dec 7 2019, 06:48 PM BeatNavy I agree, no bleeding required. Which FI is this? ... Dec 7 2019, 06:49 PM TheCabinetmaker Fuel lines in engine bay are crossed Dec 7 2019, 08:34 PM Chris914n6 You should be able to cycle the fuel pump a few ti... Dec 7 2019, 08:46 PM Robson51 Thanks everyone! It's a '74 2.0. I... Dec 7 2019, 11:12 PM
BeatNavy
Thanks everyone! It's a '74 2.0. I... Dec 8 2019, 06:34 AM |
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