bolt threads all metric?

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Old 15 Mar 2016, 09:35 pm   #1 (permalink)
dangerous dan
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Default bolt threads all metric?

The nuts came off the oxygen censor today, the censor popped out. Should there be a gasket between the sensor and exhaust when I put it back on?

Does anyone know the bolt size and thread? I'll need to find some new nuts.

I got out my metric taps and dies and couldn't find the right die to chase the threads. I also tried the SAE dies, but they wouldn't work.

This pickup started making quite a racket when the sensor came out. It sounds like my neighbors truck when he drives by.

Tomorrow I'll wrap bailing wire around it to get me by for a few days.


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Old 16 Mar 2016, 01:43 am   #2 (permalink)
dangerous dan
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Default Re: bolt threads all metric?



dangerous dan<dangerous@dan.com> wrote:
> The nuts came off the oxygen censor today, the censor popped out. Should there be a gasket between the sensor and exhaust when I put it back on?
> Does anyone know the bolt size and thread? I'll need to find some new nuts.
> I got out my metric taps and dies and couldn't find the right die to chase the threads. I also tried the SAE dies, but they wouldn't work.
> This pickup started making quite a racket when the sensor came out. It sounds like my neighbors truck when he drives by.
> Tomorrow I'll wrap bailing wire around it to get me by for a few days.


I checked online and found it will take a metal gasket when I put it back on. it didn't say what size nuts I'll need.

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Old 16 Mar 2016, 11:40 pm   #3 (permalink)
Handyman
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Default Re: bolt threads all metric?

On Tuesday, March 15, 2016 at 10:43:35 PM UTC-7, dangerous dan wrote:
> dangerous dan<dangerous@dan.com> wrote:
> > The nuts came off the oxygen censor today, the censor popped out. Should there be a gasket between the sensor and exhaust when I put it back on?
> > Does anyone know the bolt size and thread? I'll need to find some new nuts.
> > I got out my metric taps and dies and couldn't find the right die to chase the threads. I also tried the SAE dies, but they wouldn't work.
> > This pickup started making quite a racket when the sensor came out. It sounds like my neighbors truck when he drives by.
> > Tomorrow I'll wrap bailing wire around it to get me by for a few days.

>
> I checked online and found it will take a metal gasket when I put it backon. it didn't say what size nuts I'll need.


Dan, I just crawled under my truck and looked at my O2 sensor. The studs aren't long enough to have extra threads for me to check the pitch but the nuts are those exhaust capture nuts with the slits on the backside that Toyota typically uses on exhaust systems. My guess is if yours fell out it isbecause those anti-vibration capture nuts were not used the last time. IfI were you I would just get a set from the Toyota dealer, grease up the studs with some anti-seize compound and put it back together with a new gasket.
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