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Old 09-09-2004, 08:39 PM
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What is this liquid coming out of my tailpipes?

So here's the story...I've been trying to do the initial timing on my car all day.My timing used to be set on 14*(race shop set it there.)From doing some research I've come to the conclusion that my initial timing should be set to 8-10*.I set it at 8* and now I have all this water junk coming out of my tail pipes..I mean alot.I have a foot across puddle under each exhaust.What is this???It doesn't smell like straight gas??What is it?what is wrong with my setup.Is the carb set to rich? sbc 350-edelbrock performer 600,rams horn manifold-cast iron heads-weiand aluminum intake.Can someone give me some observations?thanks bm

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Old 09-09-2004, 09:33 PM
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Are you using antifreeze? If so, does the "water junk" smell sweet?
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Old 09-09-2004, 09:45 PM
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yes I use antifreeze.The water does have a weird odor.I wouldn't say sweet.what are you thinking?
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Old 09-09-2004, 09:57 PM
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Sweet smell usually means a coolant leak. I am guessing you have true dual exhaust so it wouldn't be likely, to have a leak on both pipes.


Do you have catalytic converters?


The water is coming out after the engine has reached operating temperature?
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Old 09-09-2004, 10:02 PM
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I have twin exhaust with h pipe.Not sure about op temp.I will let you know tomorrow.if it stops when it gets up to temp.thanks bm no catalytic converter
ps its a 67 nova
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Old 09-09-2004, 10:13 PM
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No converter and an H pipe....then you could have a coolant leak... I can't really understand why you would have water coming out your tail pipe(s) just because you lowered the timing a few degrees.


67 nova huh (?).....despite my username I must admit I like that year nova. Good luck...probably something simple
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Old 09-09-2004, 10:40 PM
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water

[size=3] Doc here

Let's get some info here.

First You indicate the engine is new Correct? Heads too?
  • How much run time has it got?
  • Did it at anytime overheat?
  • How's your oil looking, milky white or clean?
  • How does it run? hard starting? Miss at idle, road speeds?
  • Crank like it's over-advanced on cold starts?
  • Using water or boiling over?
All of these point to but are not limited to a bad head gasket, or misaligned, or damaged intake manifold gasket.

Does it blow white puffy smoke out the back all the time?

Fill in the blanks and we 'll see if we can narrow it down for you...

Doc
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Old 09-09-2004, 10:43 PM
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Water is a normal byproduct of combustion. Perhaps the change in timing has something to do with it. If you are loosing coolant from the engine, then that is the source. Other wise, i would suspect it is normal. Any changes in Humidiity in your area? Temp change?


I have seen cars pour water out the tailpipe that didnt have any engine leaks, it was buiild up in the muffllers from short trips. The engine never got hot enough to vaporize the water buiild up in the muffler.
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Old 09-09-2004, 10:48 PM
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Water is a normal by-product of combustion. If you are spending a good bit of time idling, it may be condensing in your exhaust system & spilling out the tailpipes. Kinda like Grandma's old 455 Bonneville did because she never pressed the gas pedal more than 1/8" down.

Taste a fresh drop of the water. If it's sweet, spit it out, it's coolant. If not, it's probably just condensation.
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Old 09-09-2004, 11:00 PM
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Doc,
I'm sorry....this is not a new motor,the car is new to me.
I will answer your questions in order.
1.the motor is a 94 gm crate motor with 25,000 miles on it.
2.I had a temp problem for a while,it overheated twice
3.The oil is clean.nothing abnormal at all
4.it runs good,it idles alittle high..900 rpm
5.it starts right up
6.the fluid level stays the same.doesn't boil over
7.No white puffy smoke at all..never

I appreciate your thoughts and anyone else who wants to chime in.thanks bm

curly5759,
There was a huge temperature change today.Its been baking here for the last 5 days(90-96 degrees) and today it was 70 degrees.Something else I forgot to mention.....I just got 2 new flowmaster 40 series put on yesterday.I had the dynomax turbos.They were rotten.This probably doesn't have anything to do with my problem.Thought I should mention it though. bm

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Old 09-09-2004, 11:01 PM
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Re: What is this liquid coming out of my tailpipes?

Quote:
Originally posted by batman09
now I have all this water junk coming out of my tail pipes..I mean alot.I have a foot across puddle under each exhaust.What is this???It doesn't smell like straight gas??What is it?what is wrong with my setup.Is the carb set to rich?thanks bm
[size=3]Doc here

Curly5759,

I agree with you fully on the normal byproduct of combustion, and since I live about 25 miles east of Batman, I can attest to the fact the temperatures have soured the last 7 days here. triple digits with low humidity....where it's usually 68-75 normally..

But unless he's exaggerating a bit on the foot across puddle on each pipe, That seems a lot to be just normal condensation, unless he's got both muffler's Full of water.....

On normal condensation days here, I get a usual puddle under the pipes about the size of a silver dollar...and mild white clouds until it warms up. but never foot wide puddles..

My Vote's For a gasket somewhere gone south..

Doc
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Old 09-09-2004, 11:05 PM
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Doc,
This just started happening today when I started messing with the timing.At 14* of initial timing this doesn't occur??Thats why i'm so puzzled?
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Old 09-09-2004, 11:29 PM
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timing change

Quote:
Originally posted by batman09
Doc,
This just started happening today when I started messing with the timing.At 14* of initial timing this doesn't occur??Thats why i'm so puzzled?
[size=3]Doc here

I can't see that much change in water in a mild change of timing ... although.....ya never know...

Run it...Idle is one thing, driveabilty is another ...observe everything it does...If it don't heat up, doesn't detonate, boil over or run doggie... than it's all good...Long idles Do build up water...

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Old 09-09-2004, 11:37 PM
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i have had puddles that big under my tail pipe when i start up my 66 early inthe morning... it normaly dont do it but every once and awhile i get a bunch. the puddle tho is more of a run (1/2 inch to an inch by a foot) if the puddle is like this i would say its fine.
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Old 09-09-2004, 11:46 PM
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yeah thats it.The puddle is more like a run...its about 1/16-1/8" deep by 1 foot... kind of a spray.I guess puddle was the wrong word.It was idleing a long time as I was setting the timing.I will run it tomorrow when I get home from work and tell you guys more.Thanks bm
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