The other night on my journey home my 1963 Sedan Deville with the 390 began to run rough. Pulled into the Hess gas station over on Route 31 in Clinton to look at it and see what the problem was and check all the fluids of the car. It was down about a quart of oil so I topped that off and all the other fluids checked out fine. When I started Flo back up to head home it ran a little better but good lord did it smoke something fierce out the driver side exhaust pipe. This has happened before but it only does it when the car has been out for more than a half hour.

Does anyone have any ideas what the cause of this is besides mine being that I either have a leaky piston or a bad head. Either one of these will be spelling the end for the car.


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Comment by Matthew Kurland on November 26, 2014 at 2:49pm

Going to do a compression test once I get back from vacation and I will pull out the plugs and see what they look like.

Does anyone know about how much it would cost to have them rebuilt?

Comment by Russ Austin on November 25, 2014 at 8:45pm

Blue is oil, and as Tony said, keep an eye on the radiator fluid level. I would suspect valve seals, and possibly bad rings.  Do a compression test. Wet and dry.

Comment by Matthew Kurland on November 25, 2014 at 4:44pm

The smoke has a blueish tint to it but it is white.

The car shows 99xxx on the clock but I have not a clue if it has rolled over yet.

Comment by Tony and Ginny 429 on November 25, 2014 at 4:27pm
Is the smoke color white or blue ?
How many miles on the engine ?
White wb water, a head gasket
Blue is oil , Heads , most likely the valve guides are worn or the oil seals on the valves are shot
A ring problem is possible with very high mileage numbers
Keep an eye on your oil level and the water level in the rad ,as you sb using up one or the other
You were down a quart , so oil is my best guess
The plug sb fouling in the bad cylinder on the drivers side ,so that's your rough running cause
It sb easy to see by looking at the plugs condition


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