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        General >> Give/Need advice to/from others >> IACV removal
        
(Message started by: cossieguy on Oct 3^rd, 2006, 4:23pm)

Title: IACV removal
Post by cossieguy on Oct 3^rd, 2006, 4:23pm

Went to take my IACV off to give it a clean etc. One of the screws/bolts wont come off and the screwhead has started to bend/mishape when trying to unscrew it, as they're soft metal heads. Can hardly get a screwdriver onto it now! Any suggestions on a way forward ??? Have tried soaking with WD40 but still seized.

Title: Re: IACV removal
Post by Dave on Oct 3^rd, 2006, 5:14pm

Should be 2 x 10mm bolts on there unless I am very much mistaken.

If the bolts are rounding can you try a gently hammering (theres 2 words that don't go together) a smaller socket on there? Like a 9mm or sommat?

Title: Re: IACV removal
Post by cossieguy on Oct 3^rd, 2006, 5:47pm

Not sure if i'm trying to undo the wrong ones then? I'm trying to undo the ones on the left hand side of the iacv (with phillips threads in them) as you look at it. Do these need to be undone during the cleaning process? or do you just take the whole unit off and undo the plastic cover on the end? Have seen the how to from the G and S site but it doesn't make clear which ones to undo.

Title: Re: IACV removal
Post by cossie_al on Oct 3^rd, 2006, 7:07pm

The two 10mm bolts fasten it to the engine and the two cross/philips head bolts are used to take the iacv apart.
When I did mine I undid the electrical plug and then unbolted the whole thing from the engine and worked on it on the bench.
I actualy managed to loosen the philips head bolts with a small pair of mole grips, pliars would probably do it.
When I reinstalled it I reffited it with allen studs instead of the philips heads.

Title: Re: IACV removal
Post by twinturbo on Oct 3^rd, 2006, 7:07pm

Your trying to take the solenoid of the valve.

You don't need to undoo them just the two bolts holding the assembly to the plenum

Make sure you don't damage the gasket.

The screws holding the solenoid on do often round off..

TT

Title: Re: IACV removal
Post by cossieguy on Oct 3^rd, 2006, 9:23pm

Thanks TT and cossie_al, would have carried on trying to loosen the wrong ones and would have got myself into a right pickle :-[
However i assume i'm going to have to loosen it to clean the inside of the iacv?

Title: Re: IACV removal
Post by Simmo on Oct 4^th, 2006, 6:42am

I believe it is a slightly different design on the Cosworth but on the 2.0ltr once it is off the car there are two 'ports' and you can see the spring and shaft clearly. You need to a good spray of carb cleaner and then a drop of 3in1. You can activate the shaft with a small pair of long nose pliers or a screwdriver to ensure it is moving freely.

Title: Re: IACV removal
Post by cossieguy on Oct 4^th, 2006, 6:48am

Thanks Simmo will give it a go today.

Title: Re: IACV removal
Post by Simmo on Oct 4^th, 2006, 6:53am

I take it you've read This (http://www.fordscorpio.co.uk/iacvdata.htm). The diagrams show what I mean.

Title: Re: IACV removal
Post by cossieguy on Oct 4^th, 2006, 7:46am

Yes i had Simmo, sorry if it's a stupid question but where do you put the oil?

Title: Re: IACV removal
Post by Simmo on Oct 4^th, 2006, 8:17am

The idea is to clean and lubricate the shaft which the spring sits round so that there is minimal resistance when the solenoid is activated.

Title: Re: IACV removal
Post by cossieguy on Oct 4^th, 2006, 8:31am

Thanks for your quick response mate, will have breakfast then get cracking with it.