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Old Jan 30, 2005 | 09:48 PM
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Default moisture from exhuast

Recently, I just started getting a lot of water from the exhaust on my 76. It's only coming from the passenger side, the car has true duals. Haven't blown it out on the road yet, but the car doesn't seem to be overheating when its idling. Could it be moisture from the gas tank (the car sat for almost 7 years before I got it)? I've added about 8 gallons of gas total, but the car didn't do this the first time I added gas. I should also add, the car doesn't really seem to be smoking. The car is running smooth, but the passenger exhaust seems choppy compared to the other side.



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Old Jan 30, 2005 | 09:53 PM
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Default moisture from exhuast

I had the same thing on my 77 when i bought it. Mine popped every 5 or 10 seconds or so only on that side. I sold the car but still curious to what it was?
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Old Jan 30, 2005 | 09:56 PM
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Well, hopefully its nothing too major. I will never sell this car, means to much to me.
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Old Jan 30, 2005 | 10:00 PM
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Default moisture from exhuast

Does your engine pop when it happends? bad Idle?
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Old Jan 30, 2005 | 10:02 PM
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Does it do it all the time or only when you first start it? Check to see if the radiator is holding pressure that will tell you if you have a coolant leak. But be careful
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Old Jan 30, 2005 | 10:22 PM
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Just changed the plugs and wires this weekend, and also adjusted the timing. Running about 16 degrees intial. The car is idling really smooth, didn't get a chance to see what rpm its at. I am getting a little popping from the passenger side exhaust, it's definitely not as smooth as the other side. I haven't had the car on the road since I bought it, so I don't know how it will be after I drive it. After finally getting the car running, I had to spend another $600 on brakes because they were leaking. I'm hoping the get the car out in the next week or two. I definitely check to see if the radiator is holding pressure, but I can feel pressure on the upper rad hose. I may end up changing the rad cap just for the heck of it.
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Old Jan 30, 2005 | 11:53 PM
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Your heat riser might be partially closed/open allowing more moisture to collect in the pass side pipe and muffler. With this condition it will take longer to clear that moisture, otherwise it sounds fairly normal.
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Old Jan 31, 2005 | 01:14 AM
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Originally Posted by vette4820
Recently, I just started getting a lot of water from the exhaust on my 76. It's only coming from the passenger side, the car has true duals. Haven't blown it out on the road yet, but the car doesn't seem to be overheating when its idling. Could it be moisture from the gas tank (the car sat for almost 7 years before I got it)? I've added about 8 gallons of gas total, but the car didn't do this the first time I added gas. I should also add, the car doesn't really seem to be smoking. The car is running smooth, but the passenger exhaust seems choppy compared to the other side.
You also should check your oil - dipstaick and drain from the pan. Look for milkiness or other indication of water (coolant) getting in the oil. You don't mention an overheating problem, so it may or may not be the beginning of a blown head gasket... Radiator pressure check and compression check of the cylinders might be a good idea. Just keep on taking a hard look at everything as you seem to be doing... As mentioned, it could well be the sticking heat riser valve on the right side exhaust. Check it and wire it open to test it out... If problem goes away you've solved it. If not, you've ruled out a possible cause and can keep looking.
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Old Jan 31, 2005 | 01:19 AM
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Thanks for the replies. With the car idling for about 10 or 15 minutes (not moving) the temp stays under 220. I haven't checked the oil, I plan on changing after I take the car for a run. It still has the same oil in it, I added some, but I wanted to drive the car before I change the oil. How/where do I check the heat riser on the exhuast? Thanks again.
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Old Jan 31, 2005 | 02:53 AM
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Thought..if memory serves me well...I read about this..being due to how well refined the gasoline was..let the flames begin! Joe!
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Old Jan 31, 2005 | 03:38 AM
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Originally Posted by 81' Corvette Guy
Thought..if memory serves me well...I read about this..being due to how well refined the gasoline was..let the flames begin! Joe!
refined ??????
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Old Jan 31, 2005 | 11:01 AM
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bump
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Old Jan 31, 2005 | 02:07 PM
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Looks completely normal. Most cars, especially on a cool morning, will actually drip water out the tailpipes. You only need to be concerned if you continue to drip water after the engine has fully warmed up. The heat riser valve will cause more water to be produced on one side than the other.
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Old Jan 31, 2005 | 02:28 PM
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I had a dist. cap one time with a hairline crack that did the same little light pop you are talking about . Idled well .
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Old Jan 31, 2005 | 05:27 PM
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A weak exhaust valve spring will also do that. If the engine sat along time with out being cranked over this is a possibilty.
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Old Jan 31, 2005 | 06:07 PM
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Originally Posted by comp
refined ??????

Come on man..refined..you have never heard of mexican gasoline..??? Have had a couple of GM Dealerships..as well as, private automotive repair shops do a gasoline comparison of different gasolines samples...bout a quart each from different gas stations around town. All the samples were pulled when there was no refueling truck around on site..you wont believe the crap that will settle out of a quart of gasoline. Anyhow this was done serveral months in a row..kinda of a private study...which I was privey to the results. Was told that different companies..(gas companies) had different refinning requirements..thus differing amount of crap that settles out in the gas. I saw the documented samples..and it was amazing to see what "settled out" of the particular samples. Joe..!
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Old Jan 31, 2005 | 06:12 PM
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I thought that also on mine. Checked all my seat pressures , comp. check , and leaked the motor . All good . Just happened to think of cap . (after about 3hrs. work )
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