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Old 03-08-2013, 03:01 AM   #1
ravenlunatic
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Default issues with STi Pink injectors

I got a set of injectors with out any kind of rings or O-rings. and to add to it, one of them is missing the O-ring retainer ring at the top of the injector. Now correct if im wrong but my understanding of the injector rings are as follows: from top to bottom, retainer ring, O-ring, injector ring, injector grommet/ring.

If anyone has any insight on this please help me out, my questions are as follows:

1. Can I still run the injector with just the O-ring and injector rings or would it leak with out the O-ring retainer ring?

2. are the rings made of rubber or hard plastic? the ones on my blue injectors crumble to pieces when I tried to remove them to use on the pinks.

3. will the DW injector rings kit work for STi pinks?
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Old 03-08-2013, 04:10 AM   #2
Uncle Scotty
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if you get orings and the lower seats for usdm blues they will work...the orings are slightly different size....but they will work

some bright boy once posted the pn for the proper size orings from mcmaster carr...if ya search it ya may find it
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Old 03-08-2013, 05:34 AM   #3
ravenlunatic
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Default

Thank you sir. My big concern is the one injector missing the top retaining ring. Its the skinny plastic ring above the o-ring. Im not sure if i can get a replacement and if no, can i run the injectors with out them as they seem to serve no sealing purpose and are only there to retain the o-ring?
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Old 03-08-2013, 02:39 PM   #4
ravenlunatic
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Bump.
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Old 03-08-2013, 05:09 PM   #5
fastnoypi
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i believe you are talking about the molding of the injector holding the o-ring. Has your molding cracked off? The larger rubber piece is just a dust seal.
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Old 03-08-2013, 05:23 PM   #6
DaiMaVuong
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If you need fuel injector orings, go to your local autoparts store and ask for a fuel injector oring kit for a 97 Toyota Camry 2.2L DOHC 4cyl. The kit comes with all the orings you need for the top feed style injector. I had to replace an oring on my top feed blues and the Toyota kit worked perfectly. I did this back in 2008 and everything has been leak free since then.
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Old 03-09-2013, 01:37 AM   #7
mod maniac
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Yes you can run the injector without the top molded oring retainer, the oring does all the sealing.
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Old 03-10-2013, 03:10 PM   #8
ravenlunatic
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Yup i was talking about the molding. Thanks a bunch for the help guys!
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Old 03-17-2013, 11:34 PM   #9
ravenlunatic
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Default

well, just to update for fun. The car is all together and running great so far. Just wanted to say thanks again for the help. it's refreshing to know that not all parts of NASIOC has deteriorated
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Old 03-17-2013, 11:57 PM   #10
Uncle Scotty
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Quote:
Originally Posted by DaiMaVuong View Post
If you need fuel injector orings, go to your local autoparts store and ask for a fuel injector oring kit for a 97 Toyota Camry 2.2L DOHC 4cyl. The kit comes with all the orings you need for the top feed style injector. I had to replace an oring on my top feed blues and the Toyota kit worked perfectly. I did this back in 2008 and everything has been leak free since then.
now THIS is great info
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Old 03-19-2013, 05:27 AM   #11
ravenlunatic
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^^ soo true. cost me 6 bucks and saved me a huge headache.
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Old 04-03-2013, 02:32 AM   #12
Aron_WRC
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Rally Sport Direct has a kit right now, if you wanna go that route.
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