What are these, and do I need them? (rb20det)

Discuss the RB20, RB25 and RB26 series engines.
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Vkoslak
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Car: 1992 240SX SE rb26dett, 2004 Subaru Forester
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http://www.vkoslak.com/~tani/1...t.jpg

The bolt with the broken off tube seems to be for vacuum. Perhaps I can just plug it? Where can I get a replacement?

The electrical connector, what is it for, and do I need it? Where can I get a replacement? I could probably solder some wires on there if I absolutely have to. The end of the harness that plugs into there is ok.

Thanks!


Joe
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not sure what the red circle is but the green circle looks like its for the idle valve (IACV, AAV, whatever you want to call it. makes the car idle, important)

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themadscientist
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Idle control motor. I beleive the ting on the right is a boost source point for the gauge. Does it look like it's broken off?

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Vkoslak
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yeah, it looks like it was supposed to have a tube for vacuum hose. I was thinking it was for boost.And its broken off. Whats the line below it for? I could always tap that line for boost presure.

Idle control, not a good thing to be broke. I had a feeling thats what it was. So where can I get a replacement for that thing? Or should I just rig up some new electrodes with a soldering iron?

I have a couple of KA's I can scavange. (sohc and dohc)

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themadscientist
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water hose I beleive. Nissan is pretty good bout interchangablity, maybe the KA solenoid will work. Me no hablo KA, sorry.

Sil240
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i dont think the SOHC kae Idle air will workit looked a little differentTry the DOHC or maybe a Z32

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Carl H
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yeah the broken nipple is for the factory boost gauge, it makes for a good boost pressure source.as for the aac valve that sucks i would either make a connector or find a good one, a aac valve gasket for a dohc (91-93) ka will work on it perfect.

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lyon23
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Carl H wrote: a aac valve gasket for a dohc (91-93) ka will work on it perfect.
does this mean that the aacv from a dohc will work also..if the gaskets are the same wouldn't the parts also? at least how they mount up. never checked into this but I will.

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Vkoslak
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At first glance, they are physically different. He KA one has 2 different electrical connectors on it.


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