What does the return line on a Porsche 944 do?
Push-On Fittings. One other small point, of the two fuel lines in the original Porsche 944 setup – the return line is a low pressure line and uses a push-on fitting. That line dumps into the fuel tank and only serves to return un-needed fuel. The OEM setup uses a clamp to secure that line to the regulator.
How much does it cost to replace a 944 fuel line?
These are most commonly used to join the 944 hard lines to the rubber hoses. Yes, Porsche does make replacement fuel lines. I believe these cost about $300 and use a bite-ring union connector to “join-up” with the original fuel lines. This has a bearing on your planning too.
What’s the maximum psi of a 944 fuel line?
The 944 fuel system reaches a maximum of about 55 psi, so Push-Lok is a candidate. If you’ve never looked at this kind of fitting, you might think it “needs something” to secure the rubber hose to the fitting.
What’s the best way to drain a fuel line?
Generally there are two approaches: open the fuel rail drain port and the fuel filter and drain the fuel – best to do this when the tank is almost empty and use compressed air to push the fuel out of both the low and high pressure lines. From there a small diamond cutting blade will make quick work of the old fitting collars.
Push-On Fittings. One other small point, of the two fuel lines in the original Porsche 944 setup – the return line is a low pressure line and uses a push-on fitting. That line dumps into the fuel tank and only serves to return un-needed fuel. The OEM setup uses a clamp to secure that line to the regulator.
These are most commonly used to join the 944 hard lines to the rubber hoses. Yes, Porsche does make replacement fuel lines. I believe these cost about $300 and use a bite-ring union connector to “join-up” with the original fuel lines. This has a bearing on your planning too.
The 944 fuel system reaches a maximum of about 55 psi, so Push-Lok is a candidate. If you’ve never looked at this kind of fitting, you might think it “needs something” to secure the rubber hose to the fitting.
Generally there are two approaches: open the fuel rail drain port and the fuel filter and drain the fuel – best to do this when the tank is almost empty and use compressed air to push the fuel out of both the low and high pressure lines. From there a small diamond cutting blade will make quick work of the old fitting collars.