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#1 |
The Hammer Man
![]() Join Date: Oct 2006
Location: Wilmington, NC
Posts: 864
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water out my tail pipes?
Out of curiousity, my tail pipes drain a lot of water. i don't mean a few drops but if it runs for 10 minutes at ides i'll have a pool of water under each pipe. Normal, nothing to worry about? sometimes that water isn't clear and has black in it. again, if it runs good should i even care?
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Boise69. Bought in Boise ID and its a '69 ___________________________________________ 1969 Chevy C-10 SWB 350/400 - drivable project www.americanhammer.com 2013 MBZ Sprinter customized 2005 MBZ Sprinter Van 2004 Land Rover Discovery 2001 Yamaha Road Star 1997 MBZ E420 1989 Ferrari Mondial T |
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#2 |
Registered User
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 1,534
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Re: water out my tail pipes?
Keep a close eye on your coolant level. That doesn't seem right to me.
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'72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction. ![]() ![]() ![]() |
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#3 |
The Hammer Man
![]() Join Date: Oct 2006
Location: Wilmington, NC
Posts: 864
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Re: water out my tail pipes?
i top my radiator off about once a week. about have a gallon. you think theres a connection?
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#4 |
Active Member
Join Date: Dec 2005
Location: Valley Springs, Ca.
Posts: 266
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Re: water out my tail pipes?
With the cooler weather I say condensation. But watch water in radiator. If it is a head gasket it will also build presure in the radiator and after awhile split it.
Jack |
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#5 | |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: water out my tail pipes?
Quote:
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" |
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#6 |
The Hammer Man
![]() Join Date: Oct 2006
Location: Wilmington, NC
Posts: 864
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Re: water out my tail pipes?
even with no 'milkshake' on the dip or no oil in the radiator?
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#7 |
Registered User
Join Date: Dec 2003
Location: here
Posts: 5,789
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Re: water out my tail pipes?
Fill the radiator & look in it while it idles. If it bubbles constantly only when its running, its head gasket time...
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#8 | |
Happy to be here
![]() Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,023
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Re: water out my tail pipes?
Quote:
If the blow is minor it won't be in the oil. Does it steam out the exhaust regardless of outside temps?
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Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" Last edited by N2TRUX; 11-05-2006 at 11:04 PM. |
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#9 |
Active Member
Join Date: Jan 2006
Location: Lower Mid-East Ca.
Posts: 326
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Re: water out my tail pipes?
Do ya top it all the way off, mine (68) will push that out the overflow and runs about an inch or so low all the time. Seems that some have a cold fill mark part way down the tank on 69ish year.
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Never try to teach a pig to sing; it wastes your time and annoys the pig! ![]() ![]() My lugnuts require more torque than your honda makes! 68 GMC, 4X4 conversion w/73 k20 running gear and springs, 350 4spd, 4.10's, D44 powerlok front, 14BFF govlock rear, 33" tires, lifted 4". |
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#10 |
Senior Member
Join Date: Nov 2004
Location: Vacaville, CA
Posts: 2,272
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Re: water out my tail pipes?
Pull the plugs one at a time and look for a very clean plug or water coming out the spark plug hole. Hope this helps.
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#11 |
Rottenwood Garage Member
Join Date: May 2005
Location: Marietta, Georgia
Posts: 4,321
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Re: water out my tail pipes?
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#12 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
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Re: water out my tail pipes?
Mine did that when it was running really rich from a leaky carb. It would spray that black water on the garage walls if you revved the engine. Different carb made it go away. I believe that water is a byproduct of the hydrocarbons in the rich exhaust. It will naturally happen more in colder weather, and it could just be your choke if it is only on warmup.
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Tim |
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#13 |
Registered User
Join Date: Jun 2006
Location: WVa
Posts: 758
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Re: water out my tail pipes?
Are you running 3 1/2" tips....?Those seem to have lots of condensation.I would check the plugs and keep an eye on it.
Shane |
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#14 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: water out my tail pipes?
it sounds to be related to your bog problem. Qjet or 2 barrell or some other carb?
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#15 |
Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Re: water out my tail pipes?
It's important to understand that the byproduct of combustion is CO² and H²O. A little dripping out of the tailpipe is normal.
I had the same problem with my L6 After swapping out my carb for a new one - my carb wasn't adjusted properly. I, too, shot stuff all over my walls. The loss of radiator fluid could be due to using an incorrect radiator cap for your engine (too few PSI cap letting water out), or from running hot and pushing water out that way - per stock setup, the radiator dumps to the ground, so none of the fluid is recaptured, so you would need to refill as the water slowly leaked out. I wouldn't just go dumping bars stop leak into your engine until you figure out what's up. First thing I would do is setup a "catch" container at the end of your radiator overflow tube to see what, if anything, is coming out of the radiator. If there is a half gallon coming out, then you know where that water is going. If water is coming out of the tailpipe still, it's probably time to readjust your carb.
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If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. Last edited by shifty; 11-06-2006 at 12:40 PM. |
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#16 |
The Hammer Man
![]() Join Date: Oct 2006
Location: Wilmington, NC
Posts: 864
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Re: water out my tail pipes?
great stuff guys, thanks. i think its more inline with my carb and the 3.5 in tips i run and the colder weather all rapped into one. I have a new 4bl edlebrock carb on an air gap intake. The carb runs rich and no matter how much i fiddle it still runs rich and i think its the cause of my bogg and now that youve mentioned it, the excess blackish water. now what to do, i just dont know.
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#17 |
Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Re: water out my tail pipes?
Beore you do anything, I would strongly consider doing two things:
1) Setup an overflow bottle for that radiator, and see if that is where your water is going. If it ain't going into the overflow bottle, then the head gasket stuff listed above is totally, totally valid. 2) Get a rebuild kit for your carb and rebuild that sucker. Sounds like one of your floats are stuck, maybe? If it's new, it probably just hasn't been adjusted right. You might check the FAQ forum for a "carb adjustment" thread, or search this particular forum and the mechanical/engine forum for the words "carb adjust" and 'carb adjustment'
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If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link) I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM. |
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#18 |
Registered User
Join Date: Sep 2005
Location: 9000' Mountain Man
Posts: 326
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Re: water out my tail pipes?
If you are seeing bubbles in your radiator while the engine is running, remove your spark plugs and put compressed air to one cylinder at a time. Then watch for bubbles in your coolant. This will tell you which cylinder is leaking coolant.
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#19 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
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Re: water out my tail pipes?
You can't keep the radiator filled to the top when there is no overflow tank like most of these trucks. It just pumps that top couple of inches on the ground the first time you warm up the engine after you fill it. As long as it stays at the same level where you can see it when cold just leave it alone.
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Tim |
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#20 | |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: water out my tail pipes?
Quote:
Shifty got it right. Water out the tail pipe is normal. When you burn fuel, one of the by-products is H²O, aka water. When I worked at the shop, a lot of the old ladies who literally drove their cars only to church on Sunday, would go through exhaust systems like they were going out of style. The only thing you have to worry about is if you drive your truck like those old ladies. They drove it a mile or two to church, then shut it off. The exhaust never got hot enough to vaporize the water. It eventually pooled up enough and rotted out the muffler and pipes. Do what everybody is saying, catch your coolant (you should anyways), inspect for obvious head gasket problems, etc. However after you do all that I'll bet you find nothing wrong AND still get water out the tail pipe.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#21 |
Registered User
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
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Re: water out my tail pipes?
Stick your finger in the water that's coming from the pipe, then taste it. Taste kinda sweet? It's coolant. Not sweet? It's condensation.
Idling lets the exhaust system stay relatively cool, so more water from combustion will condense. Look at Grandma's Mercury easing toward the grocery store at barely a fast idle. See the dribble from the tailpipe? Same thing. That's why her muffler rusted out at 20,000 miles. |
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#22 |
Account Suspended
Join Date: Jan 2006
Location: Visalia, California
Posts: 286
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Re: water out my tail pipes?
head gasket
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#23 |
Registered User
Join Date: Apr 2006
Location: southern Il
Posts: 335
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Re: water out my tail pipes?
water is a by-product of perfect combustion.
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