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Old 02-25-2007, 11:48 PM   #1
Kokopelli OP
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Thumb Airhead exhaust nut alternative installed.

Some of you may remember that I've had a bit of trouble with loose exhaust headers due to the exhaust header threads being damaged. I have ordered my new set up from here http://www.price.gmxhome.de/sternmutterersatz.html . Walter Price sells these for 97 Euro excl. German tax and plus freight, or $163 including freight in our money (NZ Dollar that is). His service is excellent they were shipped last Monday and arrived lunchtime today.

This is what the thread looked like after I've cleaned it up with a file


As you can see the components are a high quality alloy and extremely well machined. Notice the tread on the part that clamps to the head. It matches your old thread perfectly.



It took me a little while to work out which way to align them so I could easily reach all the screws. However, the installation is a breeze, especially if your threads aren't damaged. I've used a bit of Wuerth high temperature grease just to be sure.







You don't need to tighten up the screws much to get excellent grip, as it is holding on to the thread anyway. From now on I can make adjustments with an Allen key.

Admittedly the look may offend purists, but it saved me a bunch of money for the repair and I actually like it. Plus you can't argue about the practicality. There were no leaks after start up and the headers are fixed in place tightly.

I hope this is of some use to someone.
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Old 02-26-2007, 02:47 AM   #2
AntonLargiader
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Thumb

Kewl! I didn't know that was out there. What a great idea!
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Old 02-26-2007, 06:44 AM   #3
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thanks for the writeup. I'll keep those in my notes.
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Old 02-26-2007, 07:56 AM   #4
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I wonder why they don't offer a 32mm solution? Seems like an easy CNC change.
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Old 02-26-2007, 08:02 AM   #5
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Old 02-26-2007, 10:01 AM   #6
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Quote:
Originally Posted by jdiaz
I wonder why they don't offer a 32mm solution? Seems like an easy CNC change.
I think they do offer different sizes.
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Old 02-26-2007, 10:42 AM   #7
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Quote:
Originally Posted by jdiaz
I wonder why they don't offer a 32mm solution?
For what?
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Old 02-26-2007, 10:49 AM   #8
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Never mind; I was thinking OD not ID.
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Old 02-26-2007, 11:24 AM   #9
Ekke
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Thumb Special wrench - NOT!

I like the fact that I don't need to lug around that enormous exhaust nut wrench on a big trip. I'm going to check this out right now, thanks for the tip!
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Old 02-26-2007, 04:14 PM   #10
Cogswell
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Great idea. Thanks for the info.


Mike
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Old 02-26-2007, 04:53 PM   #11
BMWRich
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Cool Idea!
But outta habit....when changing the motor oil,I would have to remove the right header to replace the oilfilter anyway.
Soooo...,I would "Never Sieze" the threads after filter replacement. I then would do the left side header nut also. Every bit of about 10 minutes to loosen re-lube and tighten. No-biggie....and never any problems!

Preventative Maintenence....goes along way baby!!!
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Old 02-26-2007, 07:33 PM   #12
Kokopelli OP
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Quote:
Originally Posted by BMWRich
Cool Idea!
But outta habit....when changing the motor oil,I would have to remove the right header to replace the oilfilter anyway.
Soooo...,I would "Never Sieze" the threads after filter replacement. I then would do the left side header nut also. Every bit of about 10 minutes to loosen re-lube and tighten. No-biggie....and never any problems!

Preventative Maintenence....goes along way baby!!!
Good for you, mine was like that when I bought it.
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Old 02-26-2007, 07:36 PM   #13
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Quote:
Originally Posted by Kokopelli
elegant fix Koko-- that's some beautiful machining on those parts
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Old 02-26-2007, 08:21 PM   #14
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Quote:
Originally Posted by Ekke
I like the fact that I don't need to lug around that enormous exhaust nut wrench on a big trip.



I use a stick of wood about 1 inch OD tapering, a largish rock .. place narrow end of stick to a fin on the bm nut .. and hammer with the rock. That does the job of stopping the noise. Both of these picked up beside the road. At home I use a nice bit of bilet al made up to fit.

---------------------
Thanks for the info Kokopelli. A very nice fix. But I'd want a lot of antisize not just a bit! And I'd advise you to reapply the paste every year to ensure the new stuff does not size up too. Well every two years might do, along with the fresh brake fluid?
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Old 02-26-2007, 09:09 PM   #15
Ekke
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Anti-seize?

I'm not sure why you would want to put anti-seize on the part that attaches to the cylinder head. That part isn't screwed on, it is clamped on and as near as I can tell you would never need to remove it. In fact if it were seized on it might hold even better.



I think on the website he says that you can put seize on or not, your choice. I could be wrong as my German is a bit rusty and Babel Fish made for entertaining though not terribly informative reading.
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