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iris valve (tumbler valve thing) not working??
#1 Was reading over some posts and saw something about checking the check valve and making sure it still good. I did that, but the area looked like someone had been in there before and unpluged stuff and tried to plug it back together.
#2 After testing the check valve I grabbed a mirror and positioned it to where I could see the iris valve linkage and rev'd the engine up to 5k and didnt see the arm move at all. Is there a certain situation that the valve opens or does it function any time the RPM's go up? Keep in mind this is my first SVX, I've been a subaru owner for 15 years, I've built hundreds of EJ18, EJ22, EJ25, EJ25D, EA82's but never a EG33. If I'm mixed up on how the valve functions please correct me so I can get pointed in teh right direction on this. Thanks in advance for answers. |
#2
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Re: iris valve (tumbler valve thing) not working??
27 views and no post? wow
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#3
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Re: iris valve (tumbler valve thing) not working??
mine was in 2 pieces when i looked at mine
i just got a new one |
#4
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Re: iris valve (tumbler valve thing) not working??
Where is this (IRIS) check valve thing at? I've wanted to check mine, as I have some problems that may be associated to it, per another users advice. Anyone have a pic or diagram?
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1992 SVX LS-L: For sale 1995 Lexus SC400- Lexta Z |
#5
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Re: iris valve (tumbler valve thing) not working??
Quote:
If you decide to ever remove the intake manifold (for any reason), it would be a very good thing to take a good look at the valve as they're prone to cracking. Also replace your vacuum hoses..
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Trevor Avondale, AZ 1992 LS-L Liquid Silver 126k "BXR6" Sold 3/23/13 1992 LS-L Claret 178k totaled 10/26/09 1987 BMW 325is 60% of the time it works, every time |
#6
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Re: iris valve (tumbler valve thing) not working??
here we go, from OT's locker:
http://www.subaru-svx.net/photos/use...svxfiles|24710 and another http://www.subaru-svx.net/photos/use...svxfiles|29830
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Trevor Avondale, AZ 1992 LS-L Liquid Silver 126k "BXR6" Sold 3/23/13 1992 LS-L Claret 178k totaled 10/26/09 1987 BMW 325is 60% of the time it works, every time |
#7
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Re: iris valve (tumbler valve thing) not working??
Quote:
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. |
#8
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Re: iris valve (tumbler valve thing) not working??
Quote:
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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 |
#9
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Re: iris valve (tumbler valve thing) not working??
I have a weird whistling noise at like 2000 rpms and it lasts til about 3500. Only thing I could figure that its a vacumn leak. it only at certain RPMS when the car is moving (under load) None of the parts stores around here have intake gaskets so I guess I'll need to get those ordered up first and then I'm going to park the car and pull off my intake, replace all injector o-rings and vacumn lines
Anythign else I should do when I have the intake off? |
#10
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Re: iris valve (tumbler valve thing) not working??
Id give your EGR passage and main intake runners a good cleaning. A clean intake chamber allows for more air velocity, meaning a noticeable gain in power.
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