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Old 20-12-2006, 06:42 PM
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Default cosworth idle

Does anyone have a good working order idle speed control valve as mine is fooked and it makes the tick over shite cheeRS.

Old 20-12-2006, 06:45 PM
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GARETH T
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are you sure its the iscv?

could be a sensor problem or wiring

btw you can clean the valves,,, just take them appart and clean them with something like carb cleaner,, the coils are tough as fuck and never burn out
Old 20-12-2006, 06:49 PM
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Na i dont agree with that ive had 2 burn out on 2 different saphs and it sonly just started doing it and when the iscv is taken from the throttle body and the ignition is switched on nothing happens they usually move
Old 20-12-2006, 06:50 PM
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does that mean its burnt out then?
Old 20-12-2006, 06:54 PM
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Well ive checked the wiring to it and everything is ok there and as the saying goes nothing lasts forever, when i had the same problem before i changed it for a new one and it worked fine again.
Old 20-12-2006, 06:56 PM
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if you got a multimeter, measure the resistance of the coil remember it might have a diode in there, so make sure you measure both ways
Old 20-12-2006, 07:02 PM
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Ive tested it and there is a connection but not very strong and the rod is seized solid, i have tried cleaning it out ive got the plunger in it to move freely again but i think its to late so if anyone has one i have pennies waiting cheeRS

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Old 20-12-2006, 07:06 PM
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im sure you could clean it up and get it working,,, but it is easyer to buy new
Old 20-12-2006, 07:07 PM
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The rod doesn`t move,thats why it is siezed mate......The plunge disc moves on the rod,i have never had one burn out yet,they always recover if you strip and clean them properly.....
Old 20-12-2006, 07:09 PM
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Originally Posted by The Diva
The rod doesn`t move,thats why it is siezed mate......The plunge disc moves on the rod,i have never had one burn out yet,they always recover if you strip and clean them properly.....
i didnt notice he said that,, yes the rod is there to hold it all together! the slug is what moves up and down
Old 20-12-2006, 07:21 PM
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Well the ones i have had before, the centre rod with the nut on the end moved in and out to pull the slide valve open. as when you take it apart it is just sprung loaded underneath to return it to itt set position ??
Old 20-12-2006, 07:33 PM
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the rod stays still and the slide/slug is pulled up be electro magnetic force
Old 20-12-2006, 07:41 PM
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Well the one in question must of been well and truly fooked then mate
Old 20-12-2006, 10:46 PM
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Well and truly...
Old 21-12-2006, 01:58 PM
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Old 22-12-2006, 12:30 PM
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I recognise that motor. Hi Paul, hows tricks? My idle valve recovered after a good clean in the parrafin bath at work.

Now it just wont start.
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