I'm painting some things today including my heat shield on my header and there is something stopping me from getting the heat shield off. What is this thing in the pics below and how do I get it out so that I can take off the heat shield?

 

That looks like your O2 sensor to me. I think you just pull it out.

 

it's threaded in. get an opened end wrench and unscrew it. it is your o2 sensor. my airmass header relocates the sensor to be down by the cat. shouldn't take you long and the shield will come right off.

 

Thanks for such a quick reply guys!

 

yea thats an o2 sensor, spray it with some pb blaster or wd40 or something, the unscrew it. If its too tight and the wrench keeps slipping off they sell a socket with a piece down the side missing so the wire will fit in


The one on the back far right

 

or you could just unplug the connector and slide it through the hole in the heat shield. DUUH!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh &raquo;</TD></TR><TR><TD CLASS="quote">or you could just unplug the connector and slide it through the hole in the heat shield. DUUH!!</TD></TR></TABLE>

Just what I was thinking. Look by your dizzy and follow the wires back. It just plugs in up there, and that is MUCH easier than unscrewing it from the exhaust manifold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ricey McRicerton &raquo;</TD></TR><TR><TD CLASS="quote">

Just what I was thinking. Look by your dizzy and follow the wires back. It just plugs in up there, and that is MUCH easier than unscrewing it from the exhaust manifold. </TD></TR></TABLE>

Yes, what he said... you don't need to remove your O2 sensor to take you heat shield off! Just unplug it from the harness.

Just FYI, your O2 sensor takes a 22mm wrench.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh &raquo;</TD></TR><TR><TD CLASS="quote">or you could just unplug the connector and slide it through the hole in the heat shield. DUUH!!</TD></TR></TABLE>

I was reading the other replies, tryng to figure out why no one had mentioned this. Good call man!

Also I feel for anyone working on a car that does not know that is an O2 sensor. I guess the only way to learn is by working on it yourself!

 

dooooood haha me and my friends were getting pissed when we tryed to take his heat sheild off and we totaly forgot bout the o2 sensor... yeah just take a wrench and take that sheeeit off..... easy as can be

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by al3e &raquo;</TD></TR><TR><TD CLASS="quote">dooooood haha me and my friends were getting pissed when we tryed to take his heat sheild off and we totaly forgot bout the o2 sensor... yeah just take a wrench and take that sheeeit off..... easy as can be </TD></TR></TABLE>

Yeah you guys keep thinking that o2 sensors are "easy" to remove.

HAHAHAHA!!!

I've seen master Honda and Acura echs pitch bitch fits due to stubborn *** o2 sensors.

At least half of them BREAK when trying to remove them even if you have the right tools. There is so much heat in their threaded holes in the manifold, so they cease up really bad most of the time.

Removing an o2 sensor to paint aheatshield is STUPID in my opinion. Besides even the most heat resistant paint will turn colors and/or chip off. I painted my old D16Z6 sheild back in the day (circa 1999 ) and it turned colors even though I used the highest tempo rating.

BTW I simply unplugged the o2 sensor rather than fight it trying to remove it.

 

Yeah I just unplugged it. Before I even tried to unscrew it I saw the wires and just followed them back and unplugged it.

 

yup i painted my heatshield long before i got my header and i used like 2500 degree paint and it still came off within days... dont do it waste of time..

 

did it melt off or flake off. You should use primer or something....but i don't know if that is good with heat.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doublejz &raquo;</TD></TR><TR><TD CLASS="quote">yea thats an o2 sensor, spray it with some pb blaster or wd40 or something, the unscrew it. </TD></TR></TABLE>
Don't ever spray rust penetrant on an o2 sensor you are planning to reuse. It's like instant death to them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phthalo &raquo;</TD></TR><TR><TD CLASS="quote">did it melt off or flake off. You should use primer or something....but i don't know if that is good with heat.</TD></TR></TABLE>

it flaked off..

btw, it sounds like alot of you need some lessons on o2 sensors..

 

yeah, sand the heat shield down, wash it, primer it, and then paint it. That should fix the flaking.

 

Powdercoat instead... Mine has yet to discolor or come off.

 

oh my god.. if you guys couldnt figure that out.. i dont think you should be next to a motor.. j/k.. i hope there wasnt a bunch of guys cause damn if one of you couldnt think of that.. DUUUUUHHHHHHHH!!!!!!!!!!

 

the socket is only about 10 bucks. I just impact the hell out of it. Forget the wrench, those threads get too seazed up.

 

what exactly will removing your heat shield do? Any damage? I don't see too many after market headers with mounting spots for a heat shield?

 

I painted my heat shield with some black bbq stove paint
hasn't chipped, flaked or changed colors yet
its been a year and it still looks good

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2slow2automatic &raquo;</TD></TR><TR><TD CLASS="quote">what exactly will removing your heat shield do? Any damage? I don't see too many after market headers with mounting spots for a heat shield?</TD></TR></TABLE>

I only took it off to paint it. You don't use a heat shield with an aftermarket header.

 

if you get an aftermarket header i recomend ceramic. it cools off quicker. that's what i got on my Ek. -&gt; check signature. -&gt; links to go with in garage.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RoaringTurtle &raquo;</TD></TR><TR><TD CLASS="quote">I painted my heat shield with some black bbq stove paint
hasn't chipped, flaked or changed colors yet
its been a year and it still looks good</TD></TR></TABLE>

Exactly. Thats what I do.