 '73 2.0 fuel pump replacement, What is our best option on replacement? |
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| Grubman |
 Jul 13 2016, 07:15 PM
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#1
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Newbie  Group: Members Posts: 1 Joined: 13-July 16 From: Decatur,Al. Member No.: 20,189 Region Association: South East States  |
I purchased a '73 2.0 from Dodge City, KS. One yr ago. It's had fuel delivery problems ever since . The car has a tendency to stall at low rpm's. I had the proper vacuum lines installed as well as an anti-flashback valve but not the de-cel valve.
I replaced the fuel filter thinking that was causing the fuel pump to overheat and quit. Now I'm looking for a fuel pump replacement. One aftermarket unit only has two ports vs. three as the orig Bosch. Is it O. K. To splice the two lines going into the engine bay together? Do I need to move the pump as the later models to prevent a vapor lock? Any help would be greatly appreciated since I'm new to this forum. I've owned Porsches for sometime but only the 14 recently. Attached thumbnail(s) 
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| 76-914 |
Jul 13 2016, 07:27 PM
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#2
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,500 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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I'd put a gage on it before replacing it. And given where you live I would relo the pump to the front. That being said, now you can hear from the crowd that says vapor lock isn't a problem on 914's. (IMG:style_emoticons/default/shades.gif) BTW, (IMG:style_emoticons/default/welcome.png)
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| BeatNavy |
Jul 13 2016, 07:30 PM
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#3
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region
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This is stock D-Jet, FI, right? I don't think the symptom you're describing is necessarily caused by a bad fuel pump. It could be, but there could be other things going on like running too rich. Is the car wanting to stall at idle?
Give us some more details on how the car is driving. That may help. If you want to read up on troubleshooting D-Jet, this is very helpful: Anders D-Jet Troubleshooting. You can run a 2 port fuel pump. The plumbing is slightly different, but I'll let someone else explain that, as I haven't done it. If you do replace the fuel pump, you can move it upfront or to the firewall (I think that's a little easier) to prevent vapor lock. (IMG:style_emoticons/default/welcome.png) |
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| mepstein |
Jul 13 2016, 07:33 PM
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#4
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914-6 GT in waiting Group: Members Posts: 19,270 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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Buy the 2 port pump, move it to the front, make sure to get all the correct hose and clamps. Stainless steel fuel lines in the tunnel if that upgrade hasn't been done yet. There are lots of threads on this site on converting to the 2 port pump.
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| cary |
Jul 14 2016, 06:52 AM
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#5
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest
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Ditto on what they said.
(IMG:style_emoticons/default/welcome.png) In my 12 years of owning 914's the fuel pump has been usually yes or no. The only occasion when it went wimpy was when we found condensation rust in the fuel tank on one of the cars. If you just got the car I'd start with a valve adjustment to make sure your starting with a level playing field. Are going to be DIY or do you have a shop you work with ? |
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