According the Q4's manual, the resistance between the idle control valve's two pins should be approx 7 ohm.
mine gives me 7.7 Ohm. Do you think I need a 'new' valve? Is it possible to use the one from Lancia Delta Integrale?
Regards
Nick
According the Q4's manual, the resistance between the idle control valve's two pins should be approx 7 ohm.
mine gives me 7.7 Ohm. Do you think I need a 'new' valve? Is it possible to use the one from Lancia Delta Integrale?
Regards
Nick
10% difference, i'd say that's approx.... this is usually the tolerance that's listed for torque settings on 155s too...
ok,
I'll try to clean it {it's a century I want to} and see if it works properly. Need to change its connector first, if I'll find one, and that may take sometime.
Anyway, thanks for the reply.
Regards
Nick
I use an integrale metal one due to further tuning when the plastic casing starts to leak.
I swear i didnt do it!
The Ford Cosworth shares the same item too.
Fits whitout coustumisation.........
I swear i didnt do it!
today I've removed the ICV and discover why it was not working!!! The bl... monkey {I mean the Greek mechanic} who opened it for the last time to clean it up just forgot to mount the outlet spring inside the valve! And I believe he was paid to do that!!!
Now I need an ICV, even one who is not working just to take out the missing spring.
Nick
You could try a similar one, worth to try it.
yes Juan,
I'll try any valve that will come in my hands. In a couple of hours I'm going to test a pattent of mine using the spring from a Parker ballpoint - please do not say anything. Having tested the valve on the banch seams to works quite well. Giving +12volt it opens but must test it on the car.
Anyway, I believe I found one from an escort cosworth and as soon as ths arrive I'll replace the old one - working or not.
Nick
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
well, although out of the car the valve was working with my 'patent' {opened when I gave +12 volt}, on the car seams not to be efficient. With air-conditioning on, idle drops by 100 rpm.
But I noticed another think. When the valve was closed, at the plastic part of the valve, some air was passing from one tube to the other.
Is this normal or is there a leak at the plastic part?
Regards
Nick
I dunno, does it matter? Have you seen this btw:
http://www.bigturbo.co.uk/main2.htm
Might be of some help.
yes, I've seen that. Seams the lower {plastic or metal} part is missing on cosworth?
I'd like to hope that it does not matter as a cosworth valve is the best I can have now.
By the way, I've noticed that the piston in my pattent is a little bit deeper than in this photo! Maybe I'll try to losen a little bit the bold inside the valve.
Nick
The Cos' must have a different lower fitting, as long as it still operates the same I cannot see it mattering.
I measured the threads at 5mm once when disassembling one, I tried it at different settings - no difference.
thanks for the info. I'll wait for the cosworth one.
Nick
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Started the beasty today and all was well, immediately idled where it should instead of needing me to prod the throttle a few times
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Cosworth ICV on eBay.....HERE
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
hi
i replase mine 4 months ago and i bought from a shop in salonica
that has magnetti marelli spare parts
ithink 75euro if you want i can pass you the phone and if you live in athens i can sent it to you
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