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
>
>



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