found water where I shouldn't - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ed8756 · 09-12-2014, 09:40 PM

So I was installing headers and I found water in the left rear exhaust port. Head gasket? Are there any channels on the head that could leak. Looks to be quite slow as water is only going down very slowly and no smoke. Also find no evidence of water in oil. Oil level is static. Ideas? Thanks.

Shady195 · 09-12-2014, 10:15 PM

Quote:

Originally Posted by ed8756

So I was installing headers and I found water in the left rear exhaust port. Head gasket? Are there any channels on the head that could leak. Looks to be quite slow as water is only going down very slowly and no smoke. Also find no evidence of water in oil. Oil level is static. Ideas? Thanks.

How much liquid? Temperature outside? Possible it was condensation.

DeliciousTuning · 09-12-2014, 10:34 PM

Most likely condensation. It's not uncommon to see some condensation when doing exhaust jobs. I've seen it every time my exhaust has come off after all

Sincerely,

Zach
Delicious Tuning

ed8756 · 09-12-2014, 10:39 PM

Maybe like 10 to 15 drops.. wiped it away 3 times with finger to absorb. All of inside the on the one side of that left rear port. Only on the one port. The gasket also has rust on that exact location. Temp was around 98 degrees. This is the second time I have seen water in that exact location during header work.

ed8756 · 09-12-2014, 10:48 PM

@Zach nice talking to you again. Do you notice it in an isolated location like that?.
I notice it in the front pipe and over pipe and never mind but so isolated in one port freaked me out.

Ozzman · 09-13-2014, 04:07 PM

Are you seeing fresh clean pure water, or coolant?

ed8756 · 09-16-2014, 08:16 PM

That's hard to tell since it's in the exhaust port near the rear most valve. It's a bit covered in soot by the time I find it.

ciro · 09-16-2014, 08:20 PM

do the taste test, if it is any bit of sweet you have a coolant leak.

continuecrushing · 09-16-2014, 08:29 PM

its condensation...

Tcoat · 09-16-2014, 08:30 PM

Most likely condensation like the other guys said and all cars get it. The combo of heat and condensation is why standard exhaust systems rot out so bad.

ed8756 · 09-18-2014, 09:47 PM

I think it may be condensation because there was a flange point leak at that exact location as evidenced on the gasket and flange

cdrazic93 · 09-18-2014, 10:00 PM

Quote:

Originally Posted by ciro

do the taste test, if it is any bit of sweet you have a coolant leak.

Chase it with some coolant see if it tastes the same lol

But in all seriousness its most likely condensation, the only thing i can think of otherwise would be bent gasket allowing a slight bit of water in.

xkalelx · 09-19-2014, 12:49 PM

Water is always a byproduct of a hydrocarbon oxidation. In this case its gasoline being oxidized in the combustion chamber. Ever noticed water dripping out of tail pipes of cars or light steam emission? That's water vapor in the exhaust gases. Manufactures typically select a low grade stainless, often feritic like a 400 series. Most aftermarket will select a higher grade stainless in the 300 series. Both will offer a much higher level of corrosion resistance over plain jane low carbon sheet steel... which would rust out almost immediately due to the corrosive conditions. More than likely you are seeing condensation around your exhaust ports.

Decay107 · 09-19-2014, 01:16 PM

Probably condensation, these engines produce a surprising amount.

[ame="https://www.youtube.com/watch?v=uvZuYkh3Qb0"]Water shooting from straight piped FR-S - YouTube[/ame]

09-12-2014, 09:40 PM	#1
ed8756 Junior Member Join Date: Jul 2013 Drives: Scion FR-S, 09 jetta tdi Location: socal Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	found water where I shouldn't So I was installing headers and I found water in the left rear exhaust port. Head gasket? Are there any channels on the head that could leak. Looks to be quite slow as water is only going down very slowly and no smoke. Also find no evidence of water in oil. Oil level is static. Ideas? Thanks.

09-19-2014, 01:16 PM	#14
Decay107 Turning is for Nerds Join Date: Aug 2013 Drives: 35 characters is not enough Location: PDX Posts: 1,974 Thanks: 836 Thanked 1,259 Times in 717 Posts Mentioned: 186 Post(s) Tagged: 3 Thread(s)	Probably condensation, these engines produce a surprising amount. [ame="https://www.youtube.com/watch?v=uvZuYkh3Qb0"]Water shooting from straight piped FR-S - YouTube[/ame] __________________ My build thread / journal / evidence for warranty claim denial Motorcycle build thread

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09-12-2014, 10:34 PM	#3
DeliciousTuning PhoneFlash by EcuTeK Join Date: Dec 2012 Drives: Edelbrock Equipped - Subaru BRZ Location: San Diego, CA Posts: 1,608 Thanks: 309 Thanked 1,682 Times in 581 Posts Mentioned: 403 Post(s) Tagged: 1 Thread(s)	Most likely condensation. It's not uncommon to see some condensation when doing exhaust jobs. I've seen it every time my exhaust has come off after all Sincerely, Zach Delicious Tuning

09-12-2014, 10:39 PM	#4
ed8756 Junior Member Join Date: Jul 2013 Drives: Scion FR-S, 09 jetta tdi Location: socal Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Maybe like 10 to 15 drops.. wiped it away 3 times with finger to absorb. All of inside the on the one side of that left rear port. Only on the one port. The gasket also has rust on that exact location. Temp was around 98 degrees. This is the second time I have seen water in that exact location during header work.

09-12-2014, 10:48 PM	#5
ed8756 Junior Member Join Date: Jul 2013 Drives: Scion FR-S, 09 jetta tdi Location: socal Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	@Zach nice talking to you again. Do you notice it in an isolated location like that?. I notice it in the front pipe and over pipe and never mind but so isolated in one port freaked me out.

09-13-2014, 04:07 PM	#6
Ozzman Senior Member Join Date: Mar 2013 Drives: old Location: Roswell Posts: 232 Thanks: 188 Thanked 103 Times in 59 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Are you seeing fresh clean pure water, or coolant?

09-16-2014, 08:16 PM	#7
ed8756 Junior Member Join Date: Jul 2013 Drives: Scion FR-S, 09 jetta tdi Location: socal Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	That's hard to tell since it's in the exhaust port near the rear most valve. It's a bit covered in soot by the time I find it.

09-16-2014, 08:20 PM	#8
ciro Senior Member Join Date: Jun 2013 Drives: Scion FR-S Location: minnesota Posts: 240 Thanks: 61 Thanked 84 Times in 49 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	do the taste test, if it is any bit of sweet you have a coolant leak.

09-16-2014, 08:29 PM	#9
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s) Tagged: 2 Thread(s)	its condensation...

09-16-2014, 08:30 PM	#10
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,845 Thanks: 61,656 Thanked 108,283 Times in 46,456 Posts Mentioned: 2495 Post(s) Tagged: 50 Thread(s)	Most likely condensation like the other guys said and all cars get it. The combo of heat and condensation is why standard exhaust systems rot out so bad.

09-18-2014, 09:47 PM	#11
ed8756 Junior Member Join Date: Jul 2013 Drives: Scion FR-S, 09 jetta tdi Location: socal Posts: 8 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I think it may be condensation because there was a flange point leak at that exact location as evidenced on the gasket and flange

09-19-2014, 12:49 PM	#13
xkalelx Senior Member Join Date: Feb 2014 Drives: 2013 BRZ black Location: Cincinnati, OH Posts: 394 Thanks: 265 Thanked 283 Times in 113 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Water is always a byproduct of a hydrocarbon oxidation. In this case its gasoline being oxidized in the combustion chamber. Ever noticed water dripping out of tail pipes of cars or light steam emission? That's water vapor in the exhaust gases. Manufactures typically select a low grade stainless, often feritic like a 400 series. Most aftermarket will select a higher grade stainless in the 300 series. Both will offer a much higher level of corrosion resistance over plain jane low carbon sheet steel... which would rust out almost immediately due to the corrosive conditions. More than likely you are seeing condensation around your exhaust ports.

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