S2000 Under The Hood S2000 Technical and Mechanical discussions.

Gas leak

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Old Aug 23, 2016 | 05:19 PM
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Default Gas leak

There is a lot of gas coming out of the top part of the injectors. Theyre all leaking bad. Do i need to buy a new rail?
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Old Aug 23, 2016 | 06:06 PM
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I may try to replace the rubber gaskets on the injectors. Where can i buy those rubber gaskets?
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Old Aug 23, 2016 | 11:21 PM
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You shouldn't need to replace the fuel rail. You should be able to just replace the o-rings that sit around the top of the injector.

I believe the part # is 91303-PK2-005

I bought some at the dealer and I would recommend doing the same unless you know what you are doing. The o-ring has to be resistant to fuel obviously.
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Old Aug 25, 2016 | 03:23 PM
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what causes these o-rings to leak? is it an inspection/maintenance item or should they be able to last forever?
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Old Aug 25, 2016 | 03:30 PM
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Originally Posted by jyeung528
what causes these o-rings to leak? is it an inspection/maintenance item or should they be able to last forever?
Any rubber o-ring/gasket will flatten and fail to seal over time. I've also damaged them when removing/installing the fuel rail onto the injectors.
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Old Aug 25, 2016 | 05:44 PM
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get new o-ring's from the dealer, be careful when reinstalling the injectors - it's easy to tear them
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Old Aug 29, 2016 | 09:12 PM
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Originally Posted by Soviet
Originally Posted by jyeung528' timestamp='1472167401' post='24047953
what causes these o-rings to leak? is it an inspection/maintenance item or should they be able to last forever?
Any rubber o-ring/gasket will flatten and fail to seal over time. I've also damaged them when removing/installing the fuel rail onto the injectors.
so since all fuel injector o-rings will fail over time, shouldn't inspecting the fuel injectors for leaks be a part of some maintenance schedule?

I can't imagine we just rely on our smell of fuel as the manner to detect the eventual failing of fuel injector o-rings. what if some people can't smell shet?
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Old Aug 29, 2016 | 09:18 PM
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Originally Posted by jyeung528
Originally Posted by Soviet' timestamp='1472167803' post='24047958
[quote name='jyeung528' timestamp='1472167401' post='24047953']
what causes these o-rings to leak? is it an inspection/maintenance item or should they be able to last forever?
Any rubber o-ring/gasket will flatten and fail to seal over time. I've also damaged them when removing/installing the fuel rail onto the injectors.
so since all fuel injector o-rings will fail over time, shouldn't inspecting the fuel injectors for leaks be a part of some maintenance schedule?

I can't imagine we just rely on our smell of fuel as the manner to detect the eventual failing of fuel injector o-rings. what if some people can't smell shet?
[/quote]

Every 15k miles - "Inspect fuel lines and connections"
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Old Sep 9, 2016 | 11:20 PM
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Originally Posted by Soviet
Originally Posted by jyeung528' timestamp='1472533974' post='24050777
[quote name='Soviet' timestamp='1472167803' post='24047958']
[quote name='jyeung528' timestamp='1472167401' post='24047953']
what causes these o-rings to leak? is it an inspection/maintenance item or should they be able to last forever?
Any rubber o-ring/gasket will flatten and fail to seal over time. I've also damaged them when removing/installing the fuel rail onto the injectors.
so since all fuel injector o-rings will fail over time, shouldn't inspecting the fuel injectors for leaks be a part of some maintenance schedule?

I can't imagine we just rely on our smell of fuel as the manner to detect the eventual failing of fuel injector o-rings. what if some people can't smell shet?
[/quote]

Every 15k miles - "Inspect fuel lines and connections"
[/quote]

thanks, but how do you inspect for a leak? sniffing it with your nose?
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Old Sep 10, 2016 | 06:11 AM
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That's the easiest give away, probably much more safe than using a pilot light You can also measure fuel pressure but that's a bit trickier, you either need to tap the fuel rail or get a special adapter to put in place of the fuel pulsation damper in order to connect a fuel pressure gauge. It's almost impossible to not know you have a fuel leak, the smell is so strong that if you can't Toucan Sam your way to the problem you have no sense of smell.
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