[Diy_efi] O2 sensor mounting

[Jason M.]

You want the heated sensors pointing down.  Also the aftermarket wide band 
sensors/controllers will also instruct you to leave the heater off for a few 
seconds so any condensation in the exhaust can be blown out.  Hot ceramic + 
relatively cool water = dead sensor.   At least this is what they say. 
Maybe you can get away with more with a narrow band sensor?
----- Original Message ----- 
From: "Frank McCracken" <frankmccracken at shaw.ca>
To: <diy_efi at diy-efi.org>
Sent: Monday, April 16, 2007 4:48 PM
Subject: Re: [Diy_efi] O2 sensor mounting


> So that makes me think, Is it just the non-heated O2 sensors that need to 
> be
> mounted pointing downwards?
> Frank.
>
>
> ----- Original Message ----- 
> From: "Frank McCracken" <frankmccracken at shaw.ca>
> To: <diy_efi at diy-efi.org>
> Sent: Monday, April 16, 2007 11:18 AM
> Subject: Re: [Diy_efi] O2 sensor mounting
>
>
>> Thanks guys, it is a heated sensor. And it is a bit of a function over
> form
>> machine..... not quite a track beater tho.
>>
>>
>> ----- Original Message ----- 
>> From: "Rick McLeod" <dunvegan at sbcglobal.net>
>> To: <diy_efi at diy-efi.org>
>> Sent: Monday, April 16, 2007 9:21 AM
>> Subject: Re: [Diy_efi] O2 sensor mounting
>>
>>
>> > I personally would hide the sensor, and as for the condensation thing,
> I'm
>> not too sure I buy that rational, as there isn't going to be a major temp
>> difference when running at normal op temp, in all the reading on these
> I've
>> done I've never see or read anything that directly discusses position vs.
>> longevity, which is what I believe the condensation theory is based on.
>> Furthermore, if that is a major concern, maybe using a heated element
> would
>> also minimize the concern, works when they're mounted significant 
>> distance
>> from the exhaust port during cool weather, but from my experience w/ good
>> 4>1 headers the temp at the collector tube is still reasonably high, so I
>> can't imagine you're gonna see any problems.
>> >
>> > good luck, just my 2 C worth, cheers
>> >
>> >
>> > ----- Original Message ----
>> > From: Frank McCracken <frankmccracken at shaw.ca>
>> > To: diy_efi at diy-efi.org
>> > Sent: Monday, April 16, 2007 10:55:45 AM
>> > Subject: [Diy_efi] O2 sensor mounting
>> >
>> >
>> > I am installing my Hooker side exhaust on my '65 Corvette. I would like
> to
>> mount my O2 sensor at about 5:o'clock in the 4" tube so that it will be
> not
>> hanging out there. The collector with this system is outside of the
> fender.
>> My choices would be on top or down low on the inside to hide it. I hear
> that
>> it should be pointing down so condensation will run off. The sensor has
> been
>> at about 4:o'clock in my old system for the last 2 years will no ill
> efects.
>> If it's gotta hang out so be it. What should I do, anyone?
>> > Frank
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