Still Smoking dangit

66Sprint6

66Sprint6

Famous Member
Well, it got real nice today, 60+ degrees so I had my windows down. Now it seems the car smokes more, and its out of the pipes, not somethin burnin on the pipes. It gets pretty bad at a stop, itll come in the windows. I stink after driving, I used to anyways, but not this bad. What the heck is doin this?????? Its a grey/white/blueish smoke, not too bad noticable except at lights and stuff. Any ideas???? How to fix??? Things to check/concider?
Matt
 
I think blue smoke is often a sign of oil. Either your rings aren't sealing or you have leaking valve stem seals and or worn guides. If you stomp on the gas, and you see a puff of smoke or see it upon start up, it usually is the seals from oil draining/sucking into the chamber. They are easy enough to replace.

As far as the smell, these old carbureted cars are going to stink, just a fact of life. We have gotten sanitized with all of the emission controls and the fuel injected engines. When my wife was pregnant, the smell of the old car & bike exhaust on my clothes made her nauseous. It became a good indicator if she was pregnant on the 2nd & 3rd kids.
 
u could also get a really thick oil addidive if u dont mind adding additives to your oil. my dads jetta smoked pretty bad before and then he used stuff called slick50 and it hasnt smoked yet and that was at least a year ago. or u could just do it right and fix the seals.
 
Yeah, this is the only car I have ever called my own, Ive owned it for 5 years now. I understand that Im going to stink, lol, but I was just mentioning that it was worse than usual. I added some THICK smoke stopiing stuff today, maybe itll work until I can tear into the head again. Ill prolly do it when I do the tranny. Thanx for the help, any other suggestions are welcome!
Matt
 
66;
If you're running the 2bbl Holley carb, did you change the power valve to a lower number, like 6.0 or 6.5 (stock is often 8 or 8.5)? Your vacuum, if you have the 2bbl, will tend to be lower at low engine speeds. This tends to let the power valve open too easily and lett too much fuel in, making it run rich. The result is smoke, both blue-white or black and sooty, and lots of that foul fuel smell, which is unburned fuel.

Changing the power valve to a lower number will tend to keep the valve shut until you accelerate (or hit a hill). Also, if you have any vacuum leak at all, the stock power valve will stay open at lowe engine speeds all the time, causing this same problem.

If you don't have a vauccum gauge, borrow one somewhere and do this:
at warmed-up idle, plug into a manifold port in the intake log with the gauge. Your engine speed should be 850 RPM or less. Your vacuum should be well over 12 In.HG on the gauge (more like 14-18 in. HG). If it is lower than this, there is a vacuum leak somewhere, like under the carb, and all of the problems mentioned above will occur.
 
If it turns out it is burning oil, Lucas Oil Stabilizer(sp?) is good stuff... I put it in my truck and it stopped it from visibly smoking (it has a WAY wasted valve guide, I did seals on it and I could move it back in forth with my hand!)

Also, my dad has a Festiva, and that thing was smokin like a train.. and it stopped it too! It doesn't have teflon or any of that crap, it's some kind of petroleum product
 
Slick 50 and Lucas are only temporary fixes. Motor oils are designed and forumlated so additives are not needed and additives can be detrimental if added to oils. Lucas only works well when used alone, when added to oil it will foam.

If you have an oil consumption problem try using Pennzoil Long-Life 15W40 or 20W50. It should cut down on consumption tremendously and is still safe to use. Keep in mind that these particular engines used thicker oils when new due to larger clearances.
 
Back before I got my rebuilt motor in my 68, I used this stuff that was thicker than molassass. My problem was that oil was shooting past the rings and fouling my plugs, not to mention a rear freeze plug was leaking a bit of oil too. My solution until I got the new engine was to use that stuff (and oil-burning plugs).
That stuff was called no smoke or something like that. Honey colored, but super THICK ! I am not too sure you may want to use it if you experience cooler temps than warm FL days, but just putting that out there as a suggestion.
 
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