Series III Fuel Line Replacement
#1
Series III Fuel Line Replacement
I changed the fuel pump on my 1987 XJ6 this weekend. The new pump is working well but on close inspection of the original fuel lines in the trunk, I can see that one of the hoses is starting to degrade and has already developed a small leak that over time has stained the panel underneath the spare tire.
It could just be age but the ethanol in the fuel these days may also be a contributor. For safety reasons, I would like to replace all the high and low pressure side fuel line hoses in the trunk and maybe in the front as well.
I'm wondering if there is a kit out there or maybe a good recommendation for hoses that hold up well to the modern fuels which may be going to even higher percentages of ethanal in the near future.
It could just be age but the ethanol in the fuel these days may also be a contributor. For safety reasons, I would like to replace all the high and low pressure side fuel line hoses in the trunk and maybe in the front as well.
I'm wondering if there is a kit out there or maybe a good recommendation for hoses that hold up well to the modern fuels which may be going to even higher percentages of ethanal in the near future.
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It could just be age but the ethanol in the fuel these days may also be a contributor. For safety reasons, I would like to replace all the high and low pressure side fuel line hoses in the trunk and maybe in the front as well.
I'm wondering if there is a kit out there or maybe a good recommendation for hoses that hold up well to the modern fuels which may be going to even higher percentages of ethanal in the near future.
For the engine bay hoses any "fuel injection" grade hose from the local auto parts store will suffice. The brand doesn't matter. You'll need (from memory) 3/8 and 5/16 sizes. Besides the feed and injector hoses don't forget the return hoses which come off the regulator and go to the fuel cooler
One small section of return hides at the front of the cylinder head and is often missed.
For the hoses in the trunk I suggest marine grade hose, spec J1527 A1-10 or A1-15. The is thick walled, ultra low permeation hose which will help prevent gasoline odors in the trunk. Most of the plumbing here requires 1/2" ID hoses but the vent lines in the area of the package tray are 1/4 and/or 5/16 as I recall.
Cheers
DD
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davidboger (12-20-2022)
#3
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I just ordered all of the hoses to do just this. Buy SAE J1527 Standard A1-15. This is very low permeable hose designed for marine applications where fuel vapors are more deadly than those in our trunks. The 7/16" hose doesn't need to be injection rated as it only supplies the pumps with fuel from the tanks, all the other lines need to be injection rated.
I found all of mine on Amazon. I did have to buy more than what is needed, but still not overly expensive
I found all of mine on Amazon. I did have to buy more than what is needed, but still not overly expensive
Amazon.com: 5/16 Fuel Line Hose Rubber 10ft SAE J1527 Standard A1-15 Type for E85 Gasoline, Oil, E10 Biofuel, Diesel Fuel, Lubrication Oil on Boat and Marine : Automotive
Amazon.com: 1/4 Fuel Line Hose Rubber 10ft SAE J1527 Standard A1-15 Type for E85 Gasoline, Oil, E10 Biofuel, Diesel Fuel, Lubrication Oil on Boat and Marine : Automotive
Amazon.com: 3/8 Fuel Line Hose Rubber 10ft SAE J1527 Standard A1-15 Type for E85 Gasoline, Oil, E10 Biofuel, Diesel Fuel, Lubrication Oil on Boat and Marine : Automotive
Amazon.com: PRO 1 Fuel Line Hose 7/16 Inch Inside Diameter X 5 Feet Length NRB/PVCC SAE30R6 : Industrial & Scientific
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Greg in France (12-20-2022)
#6
Are these hoses all Low Permeability ones? I'm having a heck of a time sourcing these items, especially the 1/2" one. Can you post the amazon links if its not too much to ask? I'm sure lots of us would appreciate such a listing. I have all the hardware - new pre filters, FI clamps, shut-offs etc., but having trouble with the hoses. Ian
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Yes, all of these except the 7/16" hose are SAE J1527 low permeable hose. The 7/16" hose is low permeable, but not rated for the higher pressure as required for fuel injection as it only supplies fuel from the tank to the pumps and does not need to be high pressure. You will be buying more hose than you will need as I couldn't find where you could buy each of these by the foot.
Amazon links are in post #3.
Amazon links are in post #3.
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Greg in France (12-20-2022)
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Bear in mind that J1527 hose is available in many sub-classifications, including high-pressure...some up to 300psi.
https://www.hydraulic-supply.com/usc...To%20100%20PSI
https://www.new-line.com/catalog?page=106
https://www.hydraulic-supply.com/usc...-365-0387.html
With a few minutes of Googling you can find and order what you need. The type I've used is rated to 100psi.
Cheers
DD
https://www.hydraulic-supply.com/usc...To%20100%20PSI
https://www.new-line.com/catalog?page=106
https://www.hydraulic-supply.com/usc...-365-0387.html
With a few minutes of Googling you can find and order what you need. The type I've used is rated to 100psi.
Cheers
DD
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Greg in France (12-21-2022)
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