Engine Bay Fuel Line Replacement ID Size
10-31-2011, 04:33 PM
#1
Engine Bay Fuel Line Replacement ID Size
Hello All,
I found the following regarding the fuel lines. I have my engine out and I want to start with those lines. Does anyone know if the large and small diameter hoses in the engine Bay have the same ID size of 5/16? I have sourced the the pi503 line at my local advance auto, but I want to make sure that is all I need or if I need some larger and some smaller.
Thanks!
Aaron
* Clamps Needed:
o 4ea. 14mm
o 6ea. 15mm
* Engine Bay Hoses:
o Large Diameter: 9"
o Small Diameter: 10"
* Rear Hoses:
o Rear: Large Diameter, 27.5"
o Mid: Large Diameter, 27"
o Front: Small diameter, 9.5"
All the fittings are reusable - replace with EFI hose - 5/16th ID.
Make sure you use SAE30R9 hose.
I found the following regarding the fuel lines. I have my engine out and I want to start with those lines. Does anyone know if the large and small diameter hoses in the engine Bay have the same ID size of 5/16? I have sourced the the pi503 line at my local advance auto, but I want to make sure that is all I need or if I need some larger and some smaller.
Thanks!
Aaron
* Clamps Needed:
o 4ea. 14mm
o 6ea. 15mm
* Engine Bay Hoses:
o Large Diameter: 9"
o Small Diameter: 10"
* Rear Hoses:
o Rear: Large Diameter, 27.5"
o Mid: Large Diameter, 27"
o Front: Small diameter, 9.5"
All the fittings are reusable - replace with EFI hose - 5/16th ID.
Make sure you use SAE30R9 hose.
11-01-2011, 12:47 PM
#2
Rennlist Member
Roper Tyson has done this work for you and offers a kit complete with instructions on reusing the flanged connections. It is about $100 which might seem high for hoses and clamps, but this kind of leg work is what he saves you; I would be glad to check for you but I disposed of my old hoses, etc. I believe it includes the short piece across the water bridge with threaded connections on either end which is something like $35 by itself.
11-01-2011, 04:04 PM
#4
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Large is 3/8" and small is 5/16" - only use SAE30R9 Fuel Injection hose not fuel hose.
Make sure you use EFI clamps not screw clamps.
The list you mention is for 78/79 CIS cars.
Price for this kit is $76.50 and was compiled by Sharkskin and he also put the writeup together.
Last time I checked the kit was cheaper than buying at NAPA.
Make sure you use EFI clamps not screw clamps.
The list you mention is for 78/79 CIS cars.
Price for this kit is $76.50 and was compiled by Sharkskin and he also put the writeup together.
Last time I checked the kit was cheaper than buying at NAPA.
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
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Yes, read post 4.
After post 4 the OP said his was a 16V. Then Roger said different kit.
Also, I'm trying to determine if the fuel rail to injector hose is the 5/16" or the 3/8" ID. I'm assuming it's the 5/16" because it's a very tight fit, but I figure it can't hurt to be sure...
After post 4 the OP said his was a 16V. Then Roger said different kit.
Also, I'm trying to determine if the fuel rail to injector hose is the 5/16" or the 3/8" ID. I'm assuming it's the 5/16" because it's a very tight fit, but I figure it can't hurt to be sure...
