Missing ICV

[Bodwan]

Hi bungling amature here , I've just bought a E30 320i. It doesn't idle properly when warm, so after some googling I decided to try to clean the ICV. Having spent about an hour looking for the thing in the engine bay, I have had to conclude that's it's not there.

Can anyone point me in the right direction? Were there e30's without ICVs? Where should it go if I buy a new one?

All the diagrams I can see for the M20 engines have it coming of the boot between the air-intake and the throttle body. The haynes manual only has diagrams of the M10 engine so not much help. Am at a loss.

Here is a pic of where i believe it should be -

http://anew.design/FTP/IMG_20180810_170225.jpg

(yes I know, I have a new boot coming this week)

Thank you,

Tim

[arrisbmw]

can,t see the image. sorry

[Bodwan]

Sorry, tagged it as a URL, should work now

[arrisbmw]

http://www.verrill.com/car/idle/e30_idleproblem.shtml

should be there . unless someone done a icv delete.

[Bodwan]

That's what I thought. Although I've just ordered a new intake boot, specifically for a pre '87 model. And it only seems to have 1 outlet.

https://www.mecatechnic.com/en-GB/air-f ... C44035.htm

The image in the Ted's house article shows 2 outlets on the boot.

Is it possible that pre-'87 m20's didn't have ICVs ???

[arrisbmw]

i assume m20 with fuel injection ?, what year ?

[Bodwan]

yeah it's fuel injection, from '85

[arrisbmw]

https://www.google.co.uk/search?safe=st ... PQZWAytS7M:

think your is like this as its an ealier car pre- facelift

[arrisbmw]

see the black rubber pipe on right hand side top of photo going under the inlet manifold, where does that go , chase it back.
could be on the end of that. one done up with a jubilee clip.

[arrisbmw]

look at this at 40 seconds icv. he pulls a connector off it.

[Bodwan]

Yes! it's identical. Thank you I thought I was going mad.

The hose that goes under the manifold ends at the rocker cover.

Could it be this thing??

http://anew.design/FTP/IMG_20180813_175148.jpg

[arrisbmw]

no sorry 25 sec

[arrisbmw]

on the left.
it is the other side of engine from your photo. got it yet

[arrisbmw]

Yes! it's identical. Thank you I thought I was going mad.

The hose that goes under the manifold ends at the rocker cover.

Could it be this thing??

http://anew.design/FTP/IMG_20180813_175148.jpg

NO NOT THAT

[Bodwan]

This is what that section of the engine looks like on my car. ICV suspiciously absent. Maybe you're right and somone's deleted it.

http://anew.design/FTP/IMG_20180813_180117.jpg
http://anew.design/FTP/IMG_20180813_180102.jpg

[arrisbmw]

I THINK IT SHOULD BE HERE

PAUSE IT AT 39 SECONDS

[arrisbmw]

YES SOMETHING IS MISSING ON YOURS.

[Bodwan]

Ok, thanks for your help!

[Bodwan]

Can anyone else shed any light on what this part is?

http://anew.design/FTP/IMG_20180813_180102.jpg

[taquinvol]

That is called the intake manifold connection flange:

https://www.realoem.com/bmw/enUS/showpa ... 1611708857

On that note, I wish I could find someone to tell me how the screw found on it is properly adjusted:

http://www.e30zone.net/modules.php?name ... c&t=276621

[arrisbmw]

https://www.realoem.com/bmw/enUS/showpa ... Id=13_0597

i think this is how yours should be with a rubber pipe over / under the inlet manifold connecting 5 icv to 8 the rubber boot.

[arrisbmw]

also you may have a 2 pin connector loose over the drivers side on top of engine.


on your 2 nd http://anew.design/FTP/IMG_20180813_180102.jpg

image thats where the icv should be.

look at the youtube i posted. between 30 - 45 seconds

hope that helps.

[Bodwan]

The ICV should be on the hose between the rubber boot and the "intake manifold connection flange", connected to the hose entering from the top?

http://anew.design/FTP/IMG_20180813_180102.jpg

I think I found the cable that connects to it, and I have ordered a new ICV online so we'll see!

Thank you very much for your help, was feeling a bit hopeless!