 Early to late fuel pump conversion, keeping early location - what else to carryover from early design? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| jcschuf1 |
 Apr 9 2015, 10:17 PM
Post
#1
|
|
Newbie  Group: Members Posts: 14 Joined: 23-September 12 From: Maple Grove, MN Member No.: 14,969 Region Association: Upper MidWest  |
I am changing the fuel pump on my 73 1.7 from the stock pump (3 port)to the late model (2 port) pump. I have two questions I would appreciate feedback on. First, does the tank line from the pressure regulator need to be directed back to the pump inlet? It would make the routing of hoses infinitely easier if this could go directly back to tank. Also, directing it to the pump inlet seems unnecessary unless there would be an issue with starving pump? Secondly does anyone know of a fuel filter which could accept the 7/16" hose required for the pump inlet? Thanks in advance for any help.
|
   |
 
|
  |
Replies(1 - 6)
| JawjaPorsche |
Apr 10 2015, 06:05 AM
Post
#2
|
|
Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
QUOTE(jcschuf1 @ Apr 10 2015, 12:17 AM)  I am changing the fuel pump on my 73 1.7 from the stock pump (3 port)to the late model (2 port) pump. I have two questions I would appreciate feedback on. First, does the tank line from the pressure regulator need to be directed back to the pump inlet? It would make the routing of hoses infinitely easier if this could go directly back to tank. Also, directing it to the pump inlet seems unnecessary unless there would be an issue with starving pump? Secondly does anyone know of a fuel filter which could accept the 7/16" hose required for the pump inlet? Thanks in advance for any help. Just discard the Y-Connector. No return to fuel pump. NAPA 3274 fuel filter. See my set up in picture. I moved the pump to avoid vapor lock. Attached image(s) 
|
|
|
|
| jcschuf1 |
Apr 10 2015, 08:19 AM
Post
#3
|
|
Newbie Group: Members Posts: 14 Joined: 23-September 12 From: Maple Grove, MN Member No.: 14,969 Region Association: Upper MidWest |
Nice clean installation and many thanks for the help!
|
|
|
|
| JawjaPorsche |
Apr 10 2015, 09:23 AM
Post
#4
|
|
Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
You are welcome. Lots of wonderful people on this forum to help.
|
|
|
|
| Dave_Darling |
Apr 10 2015, 10:00 AM
Post
#5
|
|
914 Idiot Group: Members Posts: 15,284 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
|
Remember that you can make all sorts of adaptors from plumbing supplies if you need to.
--DD |
|
|
|
| 914Sixer |
Apr 10 2015, 10:27 AM
Post
#6
|
|
914 Guru Group: Members Posts: 9,308 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
|
The whole idea is to move the pump to the front to protect it from the elements and the heat exchangers.
|
|
|
|
| boxsterfan |
Apr 10 2015, 10:56 AM
Post
#7
|
|
914's are kewl Group: Members Posts: 1,776 Joined: 6-June 03 From: San Ramon, CA Member No.: 791 Region Association: Northern California |
I'm moving mine to the rear firewall like JawjaPorsche.
|
|
|
|
|
2 User(s) are reading this topic (2 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 4th November 2025 - 12:54 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.