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Date: Sun, 2 Dec 2007 17:46:09 -0700
From: Bob White <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Need some advise..
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Hi Bill,

The guy a NAPA assured me that every O2 sensor made uses the same
thread.  It's the same thread as a spark plug of that size.

Bob W.


On Sun, 2 Dec 2007 19:17:28 -0500
"Bill Bradburry" <bbradburry@bellsouth.net> wrote:

> Tracy you amaze me!
> 
> When I pulled the O2 sensor, that is what had happened!  I cleaned it off
> and also the EGT probes and when I fired it up, the O2 sensor started
> working!
> 
>  
> 
> Now I am wondering about the threads of the various O2 sensors.  I cut the
> O2 sensor boss off of the Renesis manifold  and welded it on my exhaust.  I
> am using the Bosch O2 sensor that you suggest in your EC-2 install manual.
> I noticed that the threads were boogered (technical term!) up.  Does the
> Mazda use a different thread?  I have an old '88 engine that I took the O2
> sensor out of and it was boogered up as well.  It was a Bosch also but a
> different part number.12 something instead of 11 something.
> 
>  
> 
> Any thoughts?
> 
>  
> 
> Thanks for the assistance, guys!
> 
>  
> 
> Bill B
> 
>  
> 
>   _____  
> 
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of Tracy Crook
> Sent: Sunday, December 02, 2007 6:16 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Need some advise..
> 
> What Bob said for me too.  I always use anti sieze (on threads only) and had
> no problem.  Of course there is the possibility that you had a gob of it fly
> off the EGT mount and land smack dab on the O2 sensor.  That might do it
> harm.  
> 
>  
> 
> Tracy
> 
> On Dec 2, 2007 10:26 AM, Bob White <rlwhite@comcast.net> wrote:
> 
> Hi Bill,
> 
> I'm pretty sure I used the copper anti-seize compound on my O2 sensor.
> I lost two of them in the first two hours of flight because the wire 
> broke off.  It was unsupported for several inches and I think it was
> vibrating.  I don't think the anti-seize will hurt anything as long as
> you don't get it on the sensor itself.
> 
> Bob W.
> 
> 
> 
> 
> 
> On Sun, 2 Dec 2007 09:15:17 -0500
> "Bill Bradburry" <bbradburry@bellsouth.net> wrote:
> 
> > So, it appears that I am the only one dumb enough to do this..:>) 
> >
> > Does anyone have any helpful thoughts?  I would hate to replace the O2
> > sensor and just contaminate the replacement.
> >
> > Thanks,
> >
> > Bill B
> >
> >
> >
> >
> >
> >   _____
> >
> > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> > Behalf Of Bill Bradburry
> > Sent: Saturday, December 01, 2007 12:38 PM 
> > To: Rotary motors in aircraft
> > Subject: [FlyRotary] Need some advise..
> >
> > I just removed my exhaust to have some welding done on it.  When I
> replaced
> > it, I added some anti-seize compound on the two EGT thermocouples and also
> 
> > the O2 sensor boss.
> >
> > When I started the engine, the O2 sensor worked for a few minutes, then
> > stopped working.  I assume that it did not like the anti-seize compound???
> >
> > My question is.will it come back after a while?  If I need to replace the
> O2
> > sensor, should I try and remove all the compound from the thermocouples as
> > well? (they are ahead of the O2 sensor)  Should I run the engine for a
> while 
> > after I remove the compound to try and burn it out of the pipe or should I
> > clean out the pipe?
> >
> >
> >
> > How bad is my situation?  What to do..What to do???
> >
> >
> >
> > Thanks for the help!
> >
> >
> >
> > Bill B
> >
> >
> 
> 
> 
> --
> N93BD - Rotary Powered BD-4 - http://www.bob-white.com
> <http://www.bob-white.com/> 
> 3.8 Hours Total Time and holding
> Cables for your rotary installation - http://roblinstores.com/cables/
> 
> --
> Homepage:   <http://www.flyrotary.com/>  http://www.flyrotary.com/
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> 
>  
> 
> 


-- 
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
3.8 Hours Total Time and holding
Cables for your rotary installation - http://roblinstores.com/cables/