hello! ok... so my engine is runing great when the engine is hot... or even when it's cold but the weather is dry (cold or hot weather doesn't matter). but when it's raining outside (or really humid) and the engine is cold, here is what happen: the car starts great and then if i wait on iddle, i start to loose RPM until the engine dies (takes a long time still... doesn't jump from 1000RPM to 0RPM in a second.... takes few minutes). even if i try to drive, once i stop at a light, the engine loose RPM until it dies (so i keep my foot on the gaz....seems to be a good solution for now) looks like my engine is running too rich (black marks on the ground, and a little of smoke). once the engine gets hot, the problem disapears. is there anything i can do against that? or is it a carburetor thing that i have to get use to? is it something else that i should worry about? thanks guys!
Check your choke, and make sure your timing is adjusted properly. Alot of people have to re-tune their car to run in cold weather, (yes there are a few who say two pumps without a choke and can idle out of the driveway, they tend to be the minority or the weather never changes where they live) humid weather, whatever. I know every time a storm rolls in here (they stay for a few days, they get caught by the mountains) and the barometric pressure changes then my car runs a little different.
the electric choke is already on the leanest point, and the timing have been checked a month ago by a mecanic. should i turn the choke over the 3rd point? yeah.. weather here in the midewest change every day.
Mine does the same thing, I put a new (rebuilt ) carb on it last year( not for that reason) but it still does that
ok... so i guess it's just a carburetor thing that i have to get use to thanks guys... at least it's reassuring
ok... so it keeps doing it... it's really as long as the engine is cold... once it's hot i have no problem with it. that only bugs me because it's my daily driver and right now during the winter the car needs a good 20 minutes to warm up, so it's kind of a PITA if i have to go somewhere quickly. can my choke be not working? how can I check that? can i switch to a manual choke? how hard would it be? how expensive would it be? thanks guys!
Do you have any moisture in the fuel system? I had some one winter and the gas would get ice crystals in it during cold weather, and I even had a fuel line freeze solid enough to run me out of gas during one hard freeze. I found out that changing my fuel station of habit cured the problem once I got the moisture run out of the system.
If it's a cold weather only problem, get a block heater that pops into place of one of the freeze plugs. That helps alot.
i don't think i have any moisture, how can i check that? and yes, it seems that this problem occur after filling up the tank at one station particulary... or may be it's just paranoia... i never heard of a bloc heater, i'll check on that... is it something that you just use during the winter? thanks for the answers!:Handshake
Is your engine all stock??? do you still have the foil tube from the heat stove on the manifold to the aircleaner snorkle??? If not get one and see what happens.The heat stove/foil tube feeds warm air to the carb to prevent carb iceing during damp cold weather.It sounds like this may be your problem.Good luck.(technically it only workes between 43 and 47 deg F) but you know how that goes.
The block heater is a winter use only thing. These old carb'd cars are cold blooded naturally. A block heater would help in colder climates.
same problem today...got to about 60 degrees today.....carborator was fully open when off???? or at an idel
