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#1
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Iris Valve Verification
I suspect my IRIS valve is faulty as I am getting stumbling and hesitation upon acceleration between 2000-3000rpm. I know there are other possible causes but want to rule this out.
I have read, probably on this forum that it is open at idle, closes at about 2000 and opens again a little above 4000rpm. I've also read that you can check the opearation by watching the actuator move while operating the throttle by hand. I've tried this but can not see enough under there to tell if anything is moving. I can snake my hand under there and feel the actuator rod but I only felt it move slightly when blipping the throttle quickly. It hasn't moved yet while reving the engine but I can't do that and see the tach so I don't know how high the revs get but it is bllody loud and hot. I also don't know which position is closed and which is open. My rod moved slightly towards the drivers side when I blipped. Is this opening or closing the valve? Any other tricks to checking this thing? |
#2
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Re: Iris Valve Verification
I hope that this helps.
http://www.subaru-svx.net/photos/use...svxfiles|29830
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#3
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Re: Iris Valve Verification
Quote:
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#4
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Re: Iris Valve Verification
I'm far from an expert on these cars, but I'd be happy to lend what knowledge I do have. I'm just up the street from you in Auburn Hills. I have been through the IRIS when troubleshooting another problem I had.
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Mac __________________________________ 1995 SVX-L AWD, green, 98,xxx miles, ECUtune 1.5, mazda RX-8 wheels with subie center caps, stebro muffler, resonator delete, koni inserts, perrin crank pulley, hella 500 off-road lights, power-slot rotors and ..... 1993 968 Coupe 6-speed, 80,xxx miles black, H&R springs |
#5
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Re: Iris Valve Verification
Quote:
If you are getting some reaction when you blip it, its working. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#6
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Re: Iris Valve Verification
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What else could do this? |
#7
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Re: Iris Valve Verification
don't worry.this car will give you plenty of opportunity's to fix things. trust me.
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