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Discussion Starter · #1 ·
I am going to put an inline check valve in my fuel system for the occasional long cranking.

Anyone know the ID for these lines behind the fuel pump.
 

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The lines at the back of the car are not simple rubber, they are some sort of kinda flexible plastic. It will be more complicated than simpley clamping in the check valve.
 

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Discussion Starter · #3 ·
That may mean it takes the rings style compression fittings. I hate those damn things.

Still cheaper than a new fuel pump.
 

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Discussion Starter · #5 ·
I had planned to use an smc valve that is made in the us and has viton seals.

It's only available in 5/16 though. Wonder if the inner rubber hose is that diameter perhaps.
 
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