why do headers turn blueish, goldish color?

[jdm-civic]

ive noticed on every set of headers ive installed after a day of driving they turn like a blue-purple color.....why does this happen? just curious?

[Derek2]

Im gonna go with heat...:screwy:

[big mac]

heat man, thats what makes it change... stop making stupid threads and google something once ina while

[oneSLOWex]

bad rings

[Black4DrEK]

HEAT..


yea your threads SUCK!

[Black4DrEK]

Also cheap header.. LOL

[jdm-civic]

they will get better one day........but until then,

[blown_ss]

i really get tired of seeing your stupid ass threads. why do you make them? you're making a lot of noobs look good. so with that said your probe is not jdm, yes you should trade it for a gsr, kill yourself with those spark plug adaptors, and its common fucking sense of why headers turn that blue color.

[chuck]

i believe its the combo of heat+oils...nothing to worry about in my mind.

[CeOTiO8]

Also cheap header.. LOL

:bump: I LOVE'S me some Ebay header
:lmfao::lmfao:

[CeOTiO8]

I wonder why jdm-civic is not in the red yet...

[browningboy7]

I wonder why jdm-civic is not in the red yet...

I'm trying damnit! :lmfao:

[87 Turbo II]

Heat, after years of it, the chrome plating will start to chip off and it will look like a crazy surface rusted header. The Rx-7s generate a LOOOOOOT of heat so the headers turn blue within the first 2 or 3 days, and at flaking by the first year, after2 or 3 years, it looks like this (the orange/brown pipe in the mid-bottom):

http://i108.photobucket.com/albums/n15/eastermonkey/FB/IMG_0046.jpg?t=1267203709

It's harmless for you lower exhaust gas temperature piston guys, and it's not even really a problem for us rotary guys unless the header is 15 or 20 years old.

[bodhi]

ive noticed on every set of headers ive installed after a day of driving they turn like a blue-purple color.....why does this happen? just curious?

because you touch yourself at night.

[silversol]

i really get tired of seeing your stupid ass threads. why do you make them? you're making a lot of noobs look good. so with that said your probe is not jdm, yes you should trade it for a gsr, kill yourself with those spark plug adaptors, and its common fucking sense of why headers turn that blue color.

X2 This kid is a waste of bandwith!

[DeeAOne]

if you wipe them down before your first startup usually you can keep them all one nice color.

[speedminded]

Simple, its during the tempering process. The colors depends on the metal content and the temperature. Purple to blue on stainless steel is typically 450-600°. Higher chromium content or a chromium coating will make most metals more resistant to tempering...

[Barefoot]

I'm trying damnit! :lmfao:
lol

[MeFryRice]

I'm trying damnit! :lmfao:

I just helped you out a little. ;)

[DC2NR]

LMFAO at this thread.

[jdm-civic]

lol! you guys bring the lulz!!

[Nguyen128]

lol! you guys bring the lulz!!

:gay:

[speedminded]

lol! you guys bring the lulz!!It's more like at you, not with you.

[jdm-civic]

with, at, samething

[JITB]

i appreciate people for asking questions instead of thinking they know everything.. if you dont know you dont know! you got to ask to learn... ther is alot of people on IA that talk alot and dont know anything..

i dont know myself so i googled it..

seems like speedminded was right!


Gold and blue pipes result because the exhaust is running too hot. There are three reasons for this. The first, most common reason, is that the bike is running lean. A lean mixture causes exhaust temperature to rise very sharply. A slightly rich mix WILL NOT CAUSE BLUED OR YELLOWED PIPES.

However, a *VERY* rich mix can result in an extreme case of bluing. This happens when the mix is not completely burned in the combustion chamber, (either due to a too rich mix, malfunctioning coil, burned valve, improper timing, or whatnot) and rather ignites INSIDE THE EXHAUST. This can result in an exhaust pipe that GLOWS RED while the bike is running. Only in this extreme case can a too-rich mixture cause bluing.

The common myth that blue is lean and gold is rich (or the reverse) is just that. A myth.

Third, long periods of idle can cause pipes to blue because there isn't any airflow to blow off the heat. (Some people let their bikes idle WAY too long upon start up before they take off)

Some pipes can not be restored to the original chrome finish. Others can come back close with using Blue Away.

If the pipe(s) doesn't come back to looking like you want, chances are there is an exhaust cover (chrome plated) you could put on the pipes so the blue doesn't show

[88civic_hatc]

queer f this thread

[95droppedhatch]

they turn blue because of the oil on them if you put new headers on and do not clean them with alcohol and water before first start up they will turn colors but i have a set of headers that i put on over a year ago and they are still chrome i do this all the time on the motorcycles i put new exhuast on

[DC2NR]

i appreciate people for asking questions instead of thinking they know everything.. if you dont know you dont know! you got to ask to learn... ther is alot of people on IA that talk alot and dont know anything..

i dont know myself so i googled it..

seems like speedminded was right!

True, but the thing is is that it's faster to google/search it than to post it on the forums and wait for an answer. A right answer that is.

[k3tsurui]

most if not all headers go through some type of machining process and in order to machine metal...oil is use in the cutting and drilling stages...some of that oil transfer onto the product....most manufacturers leave the oil on there on purpose to help prevent rusting...you can do like whathisface said and wipe it off but it will burn off eventually anyways...just like the oil on new brake rotors....ever install new one and notice them smoking?

i spray oil on my rotors and let them smoke regularly ....cuz i am badass

[speedminded]

ive noticed on every set of headers ive installed after a day of driving they turn like a blue-purple color.....why does this happen? just curious?The same reason your face turns blue when you suck my dick.

[jdm-civic]

^^ well at least we know who the IA homos are.....

[jap_racer1]

well hmm that could be a lot of things like burnt rings over heating your vtec is cut off and its not cooling correctly or you ask stupid questions which mean dont touch your car ever pay someone LMAO

[jap_racer1]

^^ well at least we know who the IA homos are.....


you have to classify homo like sexual, sapien, atc.... but theres only one classification for stupid theres jsut a lot of words so G/J

[ej1boy95]

this is truely the stupidest question i have ever seen asked on here. lol

[silverDA]

i just read this thread,awesome.

[e30pwr]

lawls @ the thread. it can also be due to the heat affected zone of the weld depending on the material of the pipe that is welding together.

[TSiFTW]

Holy hell.

[WRX STi]

Its caused by the vtack

[JDMGRNAV6]

had to write something

[oneSLOWex]

this is truely the stupidest question i have ever seen asked on here. lol

You knew exactly why before you came in this thread didnt you? I certainly hope so.