Hello Mopar experts..I just placed my 71 New Yorker in hybernation and I have a couple of questions for you experts out there on this form..when I start my 440 espically on a cold start I get this black wet puddle below my exhaust (pic) I am hoping it's a major flooding problem and not something internal. .once running the car idles great and no issues when driving..but she has to be cranked a few times to start even when warm..I have a pic of the carb..looks like a Carter?..this is a pic of the carb after the engine was warm..does it appear the choke is half ingauge or is this the norm.
71 New Yorker. .Carter Carb?
- Thread starter Big Block
- Start date
65sporty
Old Man with a Hat
Your choke blade should be all the way open when warm, if it's not you may have a choke thermostat or pull off problem. The puddle from the exhaust is the moisture in the exhaust from the cold engine. As the engine warms up it will burn this off, it's normal. This is why a lot of old cars that were driven short distances needed a muffler every year or two.
Could be several things but if it starts every time runs and drives well I would likely chalk it up to something to just live with. You do have a Carter carb which looks like it could use an overhaul. If you pull a spark plug and check it for fouling that might indicate a rich fuel situation. If the car hasn't had a good run it may be fouling plugs by idling rich and blowing black out the tailpipe.
commando1
Old Man with a Hat
Absolutely amazing there are people out there now that never saw a cold start carbureted car on a cold day from behind.
Absolutely amazing there are people out there now that never saw a cold start carbureted car on a cold day from behind.
I will tell you I have owned 30 + carb cars mostly small blocks and have never seen black wets spots like that but now I am glad I know always learning. .I had a variety from 351 to 460 , 318,350,400 pontiac lots more never a black wet puddle. ..black smoke..blue smoke..never wet like I am getting on this 440..thanks for the info..glad it's sounds semi normal. .
commando1
Old Man with a Hat
well that was an extreme exaggeration but you got the point.
My NYB does that to the driveway... given a several driving days without rain and the little lady gets concerned about it.
commando1
Old Man with a Hat
Up north, how do you check if the heat riser is working?
Cold start a car when it's 25° out and check the exhaust.
Cold start a car when it's 25° out and check the exhaust.
Perfectly normal while the engine warms up. Quick fix, take it out on the highway, get it well warmed up and "put the pedal to the metal" to clean it out. These engines live to roar, they hate to idle sitting in traffic.
italian tuneup, is always fun
I get moisture from the exhaust, but never powder like that. Yuck!
I get both. Powder and water condensate. Usually clears up after a bit of driving.....
To keep the condensate from accumulating in the muffler, I seem to recall that some mufflers had a 1/16" hole just under the rear tube right at the seam. Wasn't that for draining the moisture????
To keep the condensate from accumulating in the muffler, I seem to recall that some mufflers had a 1/16" hole just under the rear tube right at the seam. Wasn't that for draining the moisture????
65sporty
Old Man with a Hat
Yes it is
73Coupe
Senior Member
That's a Carter AFB.
I don't even see a choke housing mounted to it. The AFB that came with my car looked like this (attached photo) with the choke housing on the pass side (black plastic, round). I am not too familiar with AFB's so don't know if there were alternate locations or not.
But yeah, the choke plate should be completely vertical when warm. Yours might have also been using the choke stove on the manifold, with linkage. More pics would help.
I don't even see a choke housing mounted to it. The AFB that came with my car looked like this (attached photo) with the choke housing on the pass side (black plastic, round). I am not too familiar with AFB's so don't know if there were alternate locations or not.
But yeah, the choke plate should be completely vertical when warm. Yours might have also been using the choke stove on the manifold, with linkage. More pics would help.
Ripinator
Old Man with a Hat
Looking at your picture, it appears the choke is partially closed, and that would cause the engine to run rich. The rich condition would promote the forming of the black un-burned carbon you notice in the wet exhaust.
My vote is that your choke pull-off is not functioning, or its not adjusted correctly.
That's an Edelbrock, which is a "copy" of the Carter. Your carb has the electric choke, the Carter in the first pic has the "manual" choke. Although, Manual is a misnomer since it is really a heat-spring operation; nothing really manual about it.
Also, the Eddy is an AVS, not an AFB. I would prefer an AFB but no one makes them any more.
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