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Exhaust Manifold gasket

Posted: Fri Nov 23, 2018 2:51 pm
by paultv
So I have a manifold with this number: 11621716443
I have a gasket from BMW with this number: 18111728364

The new gasket doesn't fit ....WTF?

Granted I can't read the very last digit on my manifold - its rusted away somewhat and is illegible.
exhaust 3.JPG
exhaust 2.jpg
exhaust 1.jpg
so it's not use-able, and I've no idea what to look for - maybe I have a manifold off a different model, and a down pipe ??

Any Ideas how to proceed??

thanks

Paul :-)

Re: Exhaust Manifold gasket

Posted: Sat Nov 24, 2018 6:34 pm
by HartgeH27
Give Cotswold a ring, they are very helpful.

Re: Exhaust Manifold gasket

Posted: Wed Nov 28, 2018 12:12 pm
by Cotswoldbmw
Hello Paul

I have emailed you directly.

Regards

Jon

Re: Exhaust Manifold gasket

Posted: Sat Dec 01, 2018 8:43 pm
by Nickerz
Interested to know the outcome as I ordered exhaust gasket from chassis no. Only to find the same

Re: Exhaust Manifold gasket

Posted: Sat Dec 01, 2018 9:04 pm
by djkostas
Encountered the same problem (some time ago) but didnt bother much.
I just cut the outer side of each bolt hole and installed it.
No noticeable leaks.

Re: Exhaust Manifold gasket

Posted: Mon Dec 03, 2018 9:08 am
by paultv
Yep, you could do that, but I reckon you'll get about 15% gas flow reduction as the gasket is too small for the pipe orifices. Also the gasket is
exposed to exhaust gas directly to the metal seal rings which will fail pretty quickly.
gasket fit.jpg

Re: Exhaust Manifold gasket

Posted: Tue Dec 11, 2018 5:11 pm
by paultv
Thanks to Jon at Cotswolds, I now have the right component - no way of matching this to my car through Real OEM, so now it must be renamed Unreal OEM instead!

I have two 1 7 23 364 gaskets for anyone who can use them for the price of a stamp!

Paul :-)

Re: Exhaust Manifold gasket

Posted: Tue Dec 11, 2018 7:07 pm
by Nickerz
Paul I would happily take one of those of your hands or would even appreciate the correct part no.