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Replacing One Way Valves on gas tank

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Old 03-18-23, 08:59 PM
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Replacing One Way Valves on gas tank

So the check valves on the gas tank (not sure if that’s proper name), can I replace them with a regular fuel one way valve? Mine have lost their “one wayness”. I saw some on Amazon for 5/16th hose but I think these are made for fuel vapors, so I didn’t know if they were the same. Thanks for any help!
Old 03-19-23, 09:09 AM
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part number is GA5R-42-910 might as well just buy the ones that will fit
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Old 03-19-23, 09:47 AM
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Originally Posted by j9fd3s
part number is GA5R-42-910 might as well just buy the ones that will fit
awesome thank you sir!

…..well. They’re about 90$ a piece. So that’s good news lolol I’ll take my chances first with the Amazon ones and see how that pans out. If it doesn’t work they’re only 10$

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Old 03-19-23, 11:00 AM
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They are probably fine. But remember that if they don't work, a problem with fuel leakage can end up being way more than $10.
Old 03-19-23, 11:02 AM
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I also recommend getting rid of the worm drive clamps.
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Old 03-19-23, 11:26 AM
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Get the OE parts from Ray Crowe at Nucar
Old 03-19-23, 01:36 PM
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Originally Posted by TwinCharged RX7
I also recommend getting rid of the worm drive clamps.
I thought the same thing when I saw them lol those are being swapped out for fuel injector hose clamps.

Originally Posted by gracer7-rx7
Get the OE parts from Ray Crowe at Nucar
i thought about that, I saw the valves on mazdatrix and atkins which usually is very close to ray’s prices as well.
Old 03-19-23, 07:47 PM
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Originally Posted by ecurbd02
i thought about that, I saw the valves on mazdatrix and atkins which usually is very close to ray’s prices as well.
You can find everything cheaper than Atkins and mazdatrix. I found them for $68 each. Type the part number in google and a bunch of Mazda dealerships come up with the parts. Most are around Atkins price but others are much cheaper. Tascaparts and mazdaswag are what I usually use.
Old 03-20-23, 06:25 AM
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Originally Posted by antman0408
You can find everything cheaper than Atkins and mazdatrix. I found them for $68 each. Type the part number in google and a bunch of Mazda dealerships come up with the parts. Most are around Atkins price but others are much cheaper. Tascaparts and mazdaswag are what I usually use.
thanks! I will definitely check that out.
Old 04-24-23, 05:33 AM
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Hate to break it to you but these valves are actually 2 way. I.e they allow different pressures each way . Check the FSM. I wouldn't be replacing them with straight up one way valves
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Old 04-24-23, 05:43 AM
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Originally Posted by Jovic82
Hate to break it to you but these valves are actually 2 way. I.e they allow different pressures each way . Check the FSM. I wouldn't be replacing them with straight up one way valves
that’s good to know haha I will be replacing them with OEM valves.
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