What kind of bleed screw is this?

[keada714]

My bleed screw broke today and I need to find a replacement. I already went to a bmw dealer and they didn't carry it. Can someone please tell me whats the part number for this screw!!

[mr.vang]

realoem.com should have the part number

[Matt-B]

You need #8, just look around a bit more first

http://bmwfans.info/parts/catalog/E30/2-doors/USA/318is-M42/LHD/M/1990/march/browse/radiator/radiator/

part # 17 11 1 712 788

[keada714]

I've tried using the "original bleed screw" that I bought from BMW but it does not work. It is a little to big for this radiator. The reason why I posted this up is because I been struggling to find the right screw for this. Right now I rigged up a temp screw to keep it from leaking. The thread pitch for this screw is 8x1.25. So does anyone have an ideal on what screw to use or any other information in order for me to get the correct screw..

[Matt-B]

I've tried using the "original bleed screw" that I bought from BMW but it does not work. It is a little to big for this radiator. The reason why I posted this up is because I been struggling to find the right screw for this. Right now I rigged up a temp screw to keep it from leaking. The thread pitch for this screw is 8x1.25. So does anyone have an ideal on what screw to use or any other information in order for me to get the correct screw..

the 1 from bmw will and should work

[keada714]

I've tried the one bmw gave me as well as the one I pocketed from the junk yards.. I had to get a 8x1.25 bolt with an o ring to seal it up.. It works fine but I would like to replace it with the correct bleed screw.

[Gooch]

Take off the cover plate and see what's going on under there. That is not the OEM bleed screw because the OEM one sits flush with the cover plate. Maybe the previous owner stripped out the threads and put something together to make it work?

[keada714]

which cover piece are you talking about? The black piece that is held on by the two screws?

[keada714]

Dont think the bleeder has been tampered with it, since the bleed screw is a smaller than the "bmw screw". I can re tap it so the original bmw screw can fit but It wont sit flush therefore i'm afraid it wont seal correctly. I think im going to just stick to my homemade screw..

[Gooch]

Yes, the piece held on with two screws.

Honestly if the bolt and o-ring works, just go with it.

[gearheadE30]

I actually bought a metal bleed screw from Pelican Parts. They're cheap and don't get brittle with heat, so I'd go that route.