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Old 01-18-2020, 03:17 PM   #1
E46newbie02
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Readapting fuel injector O-rings?

Hey guys quick question. So I replaced my o-rings and it ran fine for 2 days (about 250 miles) and I let my car run for about 10 minutes and all 6 of them are pissing, someone told me I might need to readapt them, does anyone know how to readapt them?

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Old 01-18-2020, 03:25 PM   #2
NZ00Z3
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Looks like you need to remove the fuel rail and reset the injectors again. Use a little silicon lub spray on the O Rings so that they slide easily into place.
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Old 01-18-2020, 03:46 PM   #3
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Originally Posted by NZ00Z3 View Post
Looks like you need to remove the fuel rail and reset the injectors again. Use a little silicon lub spray on the O Rings so that they slide easily into place.
^This. The fuel rail maybe wasn’t fully seated?

https://www.liquidwrench.com/product/silicone-spray/
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Old 01-18-2020, 04:43 PM   #4
E46newbie02
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I've read you can use dish soap to lubricate them because it will evaporate?

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Old 01-18-2020, 06:02 PM   #5
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Readapt??? no.

Reseat? maybe.

But the injectors sit quite a ways up in the rail- are you sure you got the right, fuel- rated o- rings?

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Old 01-18-2020, 06:52 PM   #6
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What brand are your o rings? Something like this I would go genuine bmw (which I did some years ago now). My brain tells me not to cheap out on fuel rubber.
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Old 01-18-2020, 07:34 PM   #7
E46newbie02
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I went with elring Klinger brand? I ordered from pelican parts and the o-rings I bought were the ones they suggested for my car.

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Old 01-18-2020, 07:51 PM   #8
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Reseat the rails.you should hear a click when you do seat them correctly.Or the locking clips may be installed wrong?
And to clarify .you did put the upper and lower fuel injectors o rings in their appropriate locations right OP?
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