Injector O-ring

Discuss the RB20, RB25 and RB26 series engines.
gomer23
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Somewhere in the last 5 months I misplaced 1 o-ring from the intake manifold for the injectors. Does anyone have a part number for that or what car I can get one out of. Thanks.


gomer23
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Damnit I just saw a thread about RB20 rings haha....well would a KA SOHC ring work on a the RB25 then?

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eh?
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Z32 TT will work

gawdzilla
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the lowest o-ring closest to the head is 1661853j00

gomer23
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Awesome thanks for the replys I am ordering the 300zx one now.

edit: I searched that part number on Courtesy Nissan and it came with this one: 16618-00002 It said lower 300zx TT fuel injector o-ring so they must be the same ring? If it is right its only 73 cents haha.
Modified by gomer23 at 1:40 PM 4/21/2008

gomer23
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gawdzilla wrote:the lowest o-ring closest to the head is 1661853j00
I got that ordered but thats not the o-ring I need, I need this one that goes in the plenum...sorry that was probably my fault.




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nizmo zilvia
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Thats the furthest to the injector you needed. Not head. So... good luck with that.

wawazat8402
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IIRC I think the DOHC KA uses a similar seal for the injector to manifold. Might hit up a salvage yard and see if you can find one there.

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Kansei240sx
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Injector donuts of a KA24DE work just fine.

gomer23
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Here is a part number I found on another site, 16636-53j00. Its for a Injector Isolator. Hopefully this will be the right one haha.

gawdzilla
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i think the isolator holds the injector to the rail for the side feeds. could be wrong though

gomer23
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Quote »16636-53J00. That's for the large donut ones.16635-53J00. For the Isolators that sit on top of the injectors.16600-21U01 for the injectors themselves16618-10V05 This is for either the large or small O-Ring for the injector16618-53J00 This is for other ring. I'm pretty sure this is the small one. Sorry to not know for sure, but I took the parts out of the bag and forgot to mark which came with what.[/quote]Thats the post I found from a thread on Fresh Alloy, they were talking about SR/KA injectors so we'll see. I hope its right haha.


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