Aftermarket fuel pumps for 2.0's? |
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Aftermarket fuel pumps for 2.0's? |
stephestrad |
Aug 25 2015, 02:25 PM
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#1
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Newbie Group: Members Posts: 18 Joined: 28-February 13 From: Berkeley, CA Member No.: 15,596 Region Association: Northern California |
The fuel pump on my '74 2.0 is no longer holding pressure and I'm looking to replace it. I've seen NOS pumps pop up occasionally on this forum , and various rebuilt units from retailers (Auto Atlanta, Parts Heaven, etc.), but I haven't seen any aftermarket replacement versions. Do they exist?
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914Sixer |
Aug 25 2015, 03:06 PM
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#2
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914 Guru Group: Members Posts: 8,902 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
No aftermarket 3 port pumps at this time. Post a want to buy in the classified and see what comes up. I have several but I need to test them. Option 2 convert to the 75-76 pump.
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CodyBFR |
Aug 25 2015, 03:36 PM
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#3
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Newbie Group: Members Posts: 45 Joined: 17-November 14 From: Denver, NC Member No.: 18,130 Region Association: South East States |
It really seems that the best option these days is to convert to the later style pump. We just had another 3 port fail on a customer on the road today. We have bought a number of the AutoAtlanta rebuilt pumps, but an alarming number of them either leaked right out of the box or wouldn't build/hold pressure.
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JawjaPorsche |
Aug 25 2015, 03:56 PM
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#4
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Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
I converted to a two prong pump from a three prong pump three years and I have never had a problem.
Plus you can get a new two prong but not a three one. NAPA has them. Bosch Fuel Pump Part Number. BSH 69133 |
stephestrad |
Aug 25 2015, 04:36 PM
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#5
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Newbie Group: Members Posts: 18 Joined: 28-February 13 From: Berkeley, CA Member No.: 15,596 Region Association: Northern California |
Interesting. Can you convert to the later, two pronged style without moving the pump up front? The threads I've read here all point to relocation.
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Shadowfax |
Aug 25 2015, 04:45 PM
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#6
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Show us the meaning of haste Group: Members Posts: 509 Joined: 19-January 15 Member No.: 18,340 Region Association: South East States |
Interesting. Can you convert to the later, two pronged style without moving the pump up front? The threads I've read here all point to relocation. Yes. I just did this a few weeks ago when my three-port pump took a dump and didn't relocate. If you reuse the bracket from the old pump, you'll find that it's too big. I was able to get mine to work by wrapping the pump with a piece of rubber. Also don't forget to get a new fuel filter (I think from a Super Beetle or Bus) and a new length of 12 mm fuel hose for the outlet from the fuel filter to the inlet of the new pump. |
JawjaPorsche |
Aug 25 2015, 05:24 PM
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#7
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Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
You do not need to move to the front.
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Dave_Darling |
Aug 25 2015, 05:42 PM
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#8
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
The fuel pump port that's missing from the 2-port ones is the return port. (It isn't really needed IMHO, anyway.) So you omit the line from the R port, and you omit the Y fitting that line goes to. So the return line goes straight from the fuel pressure regulator outlet to the return hard-line through the center tunnel.
For the inlet, you might have to do some "adaptor magic" to get the hose sizes to work correctly, but again that's not a huge deal. --DD |
stephestrad |
Aug 25 2015, 06:58 PM
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#9
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Newbie Group: Members Posts: 18 Joined: 28-February 13 From: Berkeley, CA Member No.: 15,596 Region Association: Northern California |
Looks like the two pronged style is the way to go, and more straightforward than expected! Thank you all for your help and speedy words of wisdom!
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914Sixer |
Aug 25 2015, 07:54 PM
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#10
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914 Guru Group: Members Posts: 8,902 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
Use the rubber mounting pad from a the rear blower, it makes a nice shim and keeps the vibration down.
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EdwardBlume |
Aug 25 2015, 08:19 PM
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#11
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California |
I went from 3 port to 2 port, installed it on Dad's car (74) and never looked back. The 3 port is a dinosaur.
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porschetub |
Aug 25 2015, 11:46 PM
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#12
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Advanced Member Group: Members Posts: 4,704 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
It really seems that the best option these days is to convert to the later style pump. We just had another 3 port fail on a customer on the road today. We have bought a number of the AutoAtlanta rebuilt pumps, but an alarming number of them either leaked right out of the box or wouldn't build/hold pressure. True,what do they rebuild?,there is no parts for them ,the AA ones will be a new coat of paint and others well...never heard of great stories about rebuilt ones what ever Porsche it is. No point in trusted a used original could be good for a week or six months. Any low pressure efi replacement pump will do as long as the inlet outlets are the same size,Bosch are good. |
euro911 |
Aug 26 2015, 12:42 AM
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#13
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,851 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California |
You do not need to move to the front. ... but it's a good idea to move it up front, especially if you're not too concerned about your car not being a concours specimen. It will help to eliminate the possibility of pump overheating and vapor lock (IMG:style_emoticons/default/idea.gif)BTW, are you running FI or carbs? |
JawjaPorsche |
Aug 26 2015, 05:28 AM
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#14
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Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
You do not need to move to the front. ... but it's a good idea to move it up front, especially if you're not too concerned about your car not being a concours specimen. It will help to eliminate the possibility of pump overheating and vapor lock (IMG:style_emoticons/default/idea.gif)BTW, are you running FI or carbs? Moving the fuel pump to the front has been debated on this forum many times. From a personal standpoint I don't think it is necessary. I too suffered from vapor lock. Twenty years ago, I just moved the pump to the firewall and I have never had a problem since and we get some hot weather here in the south. As far as finding a bracket to fit the two prong pump, I used an coil bracket that came with a new Bosch coil. Love my stainless fuel lines from Tangerine Racing. They even had new rubber grommets too. If you go this route, you will need a reducer line from Tangerine so it will fit the fuel filter. The two prong pump takes a different filter than the three. Attached image(s) |
EdwardBlume |
Aug 26 2015, 05:46 AM
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#15
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California |
The picture above is exactly what I did. What you don't see in the picture is the line wrapping over the assembly from the fuel filter.
I likewise moved the fuel pump to the front on a prior car, and had no need on Dad's car. The firewall install is fine. I used the stock fuel filter bracket and insulated the gap with neoprene. |
EdwardBlume |
Aug 26 2015, 05:47 AM
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#16
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California |
Also use the better clamps than the ones pictured.
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stephestrad |
Aug 26 2015, 07:09 PM
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#17
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Newbie Group: Members Posts: 18 Joined: 28-February 13 From: Berkeley, CA Member No.: 15,596 Region Association: Northern California |
You do not need to move to the front. ... but it's a good idea to move it up front, especially if you're not too concerned about your car not being a concours specimen. It will help to eliminate the possibility of pump overheating and vapor lock (IMG:style_emoticons/default/idea.gif)BTW, are you running FI or carbs? I have the original FI. |
stephestrad |
Aug 26 2015, 07:13 PM
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#18
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Newbie Group: Members Posts: 18 Joined: 28-February 13 From: Berkeley, CA Member No.: 15,596 Region Association: Northern California |
You do not need to move to the front. ... but it's a good idea to move it up front, especially if you're not too concerned about your car not being a concours specimen. It will help to eliminate the possibility of pump overheating and vapor lock (IMG:style_emoticons/default/idea.gif)BTW, are you running FI or carbs? Moving the fuel pump to the front has been debated on this forum many times. From a personal standpoint I don't think it is necessary. I too suffered from vapor lock. Twenty years ago, I just moved the pump to the firewall and I have never had a problem since and we get some hot weather here in the south. As far as finding a bracket to fit the two prong pump, I used an coil bracket that came with a new Bosch coil. Love my stainless fuel lines from Tangerine Racing. They even had new rubber grommets too. If you go this route, you will need a reducer line from Tangerine so it will fit the fuel filter. The two prong pump takes a different filter than the three. Those are great ideas. I like both the firewall and coil bracket thoughts. Do stainless fuel lines have any cooling effect? |
Shadowfax |
Aug 26 2015, 07:25 PM
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#19
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Show us the meaning of haste Group: Members Posts: 509 Joined: 19-January 15 Member No.: 18,340 Region Association: South East States |
Those are great ideas. I like both the firewall and coil bracket thoughts. Do stainless fuel lines have any cooling effect? No cooling effect that I'm aware of but it is a good idea to replace the old plastic lines for peace of mind. I did mine as well as all the rubber fuel lines. |
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