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 Weber 34ICH conversion
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Derek
V4 Guru

United Kingdom
1825 Posts

Posted - 24 Feb 2017 :  19:31:57 Show Profile Reply with Quote
The 34ICH uses an alloy adaptor ring on the top and this usually, I think, comes with the kits. If you use that, the standard late filter housing fits perfectly. The same ring fits all of the ICH sizes, 25-27-29. FastRoad etc should have them if you don't have.
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FromTheKeyboard
Starting Member

USA
39 Posts

Posted - 02 Mar 2017 :  09:18:15 Show Profile Reply with Quote
Man, it's been a while.
I got the 34 ICH mounted, but I've now been confronted with another dilemma.

The old exhaust pipe for the car was mostly rusted out, and I'd like to replace it with some new stuff. The problem is, I don't know whether to upgrade it to 2 inch, like I've seen a couple guys do, or simply replace it with 1 inch?
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OWEN
V4 Fanatic

United Kingdom
266 Posts

Posted - 14 Apr 2017 :  20:38:18 Show Profile Reply with Quote
Really hard to start. Then it'd only idle with choke out. Obviously wasn't getting any fuel through the idle circuit so I removed the idle jet and the mixture screw and blew it out using a tyre pump. Put it back together and no change. Removed the idle jet, pumped more air through it and noticed some air/fuel coming out of a hole just above the idle jet. On the inlet manifold I found a little brass plug that fitted the hole. For some reason the Weber 34 ICH has a hole just above the mixture screw with a brass plug in it. I was lucky it only blew (or fell) as far as the manifold. I'd imagine an air line could blow it far far away, so I'd suggest putting some tape over it before blowing through to clear blockages. I still don't know whether it fell out and that was the original problem or whether I blew it out but either way, when I put the brass plug back in the hole it all works fine.
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Wonky door
Starting Member

United Kingdom
48 Posts

Posted - 17 Apr 2018 :  14:47:40 Show Profile Reply with Quote
Hi folks having read this thread with interest I hope someone might know the answer to our issues. On the yellow 95 project (sorry no photos still!) we have a Weber 34ich. It has a 27 stamped on the body which I presume is the right one.Having fitted a kit the accelerator pump still doesnt work manually or on the car. Float chamber seems to fill properly, the suspects are the small jet at the bottom of the float chamber and the pipe in the casting to the pump. Can they be cleared with air or manually? Is the brass plug the one referred to in a previous post on this pipe?

Cheers Dave
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melle
V4 Guru

United Kingdom
2603 Posts

Posted - 17 Apr 2018 :  16:29:56 Show Profile Visit melle's Homepage Reply with Quote
I know nothing about ICHs, but please do not try to clean jets with a piece of wire or a needle or you'll ruin the bore; only use compressed air/ carb cleaner/ ultrasonic bath.

www.saabv4.com
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Wonky door
Starting Member

United Kingdom
48 Posts

Posted - 19 Apr 2018 :  21:44:52 Show Profile Reply with Quote
Thanks the comment Melle here and in the other place. The engine now runs and we beginning to go through the things that will hopefully get it running smoothly. May take a while but as you say we are learning as we go.
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greg124
V4 Fan

United Kingdom
135 Posts

Posted - 07 Nov 2018 :  21:04:21 Show Profile Reply with Quote
I've been following this thread for a while...
... and today Parcelforce dropped of a nice new shiny 34ICH from Fast Road Cars. This is destined to go on my 95.
I'll let you know how we get on... just don't hold your breath
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