Does everyones 1st gen blow white smoke at start up?
12-11-11, 05:08 PM
#1
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Does everyones 1st gen blow white smoke at start up?
the morning will be about 30 degrees out side,pull the choke and starts up in 1 sec. The only thing is for alittle while it would blow smoke. once the engine warms up i wont see it till the next day untill i start it up again for the first time.
is the white smoke caused because i dont pre mix?
is the white smoke caused because i dont pre mix?
12-11-11, 06:11 PM
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smells like regular exhaust. its not sweet. Goes away once the car is warmed up. Also have horrible gas milage. 220 to the tank. could this be tied?
Recently had a card rebuild and a tune up. before that car sat for a few years not being driven.
Also i think the car is running rich, how can i lean it out a bit?
Recently had a card rebuild and a tune up. before that car sat for a few years not being driven.
Also i think the car is running rich, how can i lean it out a bit?
12-11-11, 07:53 PM
#4
12-11-11, 08:29 PM
#5
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220 miles but how many gallons are you putting in? 10? 13?
If you're getting 22mpg (10 gallons every 220 miles) i'd say don't touch a thing, it might be running a tad lean but you're getting really good milage.
if you're pushing it to the limit and putting in 13gallons you're still getting almost 17mpg which isn't bad in the cold.
my 83 smokes on startup, not as bad as nff, but it is a white smoke and it does completely go away once warmed up.
If you're getting 22mpg (10 gallons every 220 miles) i'd say don't touch a thing, it might be running a tad lean but you're getting really good milage.
if you're pushing it to the limit and putting in 13gallons you're still getting almost 17mpg which isn't bad in the cold.
my 83 smokes on startup, not as bad as nff, but it is a white smoke and it does completely go away once warmed up.
12-12-11, 12:15 AM
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I would of said oil control seals starting to pass a little bit of oil when cold...once warmed up it's all good....nothing to worry about, just yet.
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12-12-11, 12:01 PM
#8
Waffles - hmmm good
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Also, when its cold out and the choke is on, you will get a lot of white vapor as the
mixture is rich for the cold start. Its more noticeable on cars with carbs than, say, on
modern fuel injected cars which meter the gas better on cold starts. Its a carb thing.
Your mileage doesn't sound that bad. I'd worry about something else instead.
mixture is rich for the cold start. Its more noticeable on cars with carbs than, say, on
modern fuel injected cars which meter the gas better on cold starts. Its a carb thing.
Your mileage doesn't sound that bad. I'd worry about something else instead.
12-12-11, 12:08 PM
#9
all cars condensate from the exhaust when the engine is cold. H2O is a normal byproduct of combustion but is usually more easily visible when the air is colder and more dense.
when you breathe out of your mouth you can see the condensation from your breath, similar for cars but the exhaust eventually heats up enough to fully vaporize the water to the point that you can't see it any longer.
paranoia strikes again, this question pops up far too frequently in winter time.
oh and it isn't just a carburetor thing. FI cars do it as well, diesel, alcohol, race cars, just about anything with an internal combustion engine.
when you breathe out of your mouth you can see the condensation from your breath, similar for cars but the exhaust eventually heats up enough to fully vaporize the water to the point that you can't see it any longer.
paranoia strikes again, this question pops up far too frequently in winter time.
oh and it isn't just a carburetor thing. FI cars do it as well, diesel, alcohol, race cars, just about anything with an internal combustion engine.
Last edited by RotaryEvolution; 12-12-11 at 12:11 PM.
12-12-11, 04:03 PM
#10
Lives on the Forum
Here is my theory on this:
Even brand new coolant seals aren't perfect and will seep a little bit. Add 25 years and a whole bunch of miles, and they will seep a little bit more. While the car is hot and running, any seepage will burn up as it enters the system.
But once you shut the car off, the coolant is still hot and is still under pressure, but the engine isn't running. So, you get a bit of a buildup of that seepage that gets burned off all at once when you start her up the next day.
.
Even brand new coolant seals aren't perfect and will seep a little bit. Add 25 years and a whole bunch of miles, and they will seep a little bit more. While the car is hot and running, any seepage will burn up as it enters the system.
But once you shut the car off, the coolant is still hot and is still under pressure, but the engine isn't running. So, you get a bit of a buildup of that seepage that gets burned off all at once when you start her up the next day.
.
12-13-11, 04:59 AM
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Heres a vid. when it used to be hot outside i didnt even notice the smoke....
http://i72.photobucket.com/albums/i2...a/9793dc02.mp4
http://i72.photobucket.com/albums/i2...a/9793dc02.mp4
Last edited by Touring; 12-13-11 at 05:26 AM.
12-13-11, 09:45 PM
#15
Here is my theory on this:
Even brand new coolant seals aren't perfect and will seep a little bit. Add 25 years and a whole bunch of miles, and they will seep a little bit more. While the car is hot and running, any seepage will burn up as it enters the system.
But once you shut the car off, the coolant is still hot and is still under pressure, but the engine isn't running. So, you get a bit of a buildup of that seepage that gets burned off all at once when you start her up the next day.
.
Even brand new coolant seals aren't perfect and will seep a little bit. Add 25 years and a whole bunch of miles, and they will seep a little bit more. While the car is hot and running, any seepage will burn up as it enters the system.
But once you shut the car off, the coolant is still hot and is still under pressure, but the engine isn't running. So, you get a bit of a buildup of that seepage that gets burned off all at once when you start her up the next day.
.
12-14-11, 07:29 AM
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My 85 with no emissions blows white smoke on start up on cold mornings. I only have 60k on my engine and get about 22-25 mph. The smoke goes away when it warms up so I'm not worked about it.
12-14-11, 04:22 PM
#17
my car dosent smoke all the time. just in the cold at startup ... that and i was running LOOOTS of oil in the mix.
12-14-11, 11:02 PM
#19
LOL uh thats the whole point of the choke. to cut the air down so it runs rich to get it to start easier i havent actualy tried to start my car without a choke.... i think it would die in this weather i shall try later.... hopefully i dont flood the car. that'd be a ******* pain.
12-15-11, 08:11 AM
#20
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Ad choke to that because of cold weather and you'll have smoke. I think when it starts to give large clouds of white smoke then you have engine damage.
I have an example for you to look at. Last winter i went out to start my FB which stood still for some time. If you look from 1.55 minute you see white smoke.....if it's like this you have nothing to worry about: http://youtu.be/EzI2jdYxpIk
BTW, door and fender are painted now
Marc
