1969 351 Windsor - exhaust

M

malloyjp

Junior Member
Hi, I have a 69 mustang(mach1) with original 351 W 2V engine. When I start the car, there's a nice plume of white smoke from the exhaust that goes away after it runs for a few seconds. Even after it warms up, if I hit the gas hard (while parked in my driveway), it will put out some white looking smoke (not as much as when I first start it). The engine appears original to the car and has never been rebuilt. But otherwise it's running well. I checked the oil dipstick for a milkshake , but the oil looks fine. I don't see anything unusual under the oil fill cap either. I'm trying to figure out what is the problem...Any advice on how to get to the bottom of it is greatly appreciated. Thanks,

Joe
 
odometer is over 100K. It reads at 101K. I've had car for 25 years and put about 25K miles on it in that time. But it sat for many years. What's best way to tell if crankcase ventilation system is working ? I know the PCV valve is rattling when I shake it, but that's the extent of my PCV knowledge. Sparkplugs were kind of black/oily last time I changed them which was a year ago. It's not running bad except the exhaust..
 
I've heard the SeaFoam is great stuff, it's worth a try.

My 2 cents worth...
Since you're only driving it about 1000mi/year, put in a slightly hotter spark plug so they'll stay cleaner and not foul out on you. You could leave it this way for quite a while, it's up to you.

OR.....
Over the next couple years invite all your well-off friends and acquaintances over every weekend, and check under the couch cushions for loose change after they leave. :rolleyes:
And start looking around for a shop to redo the engine. Car club members can be a great resource.
If the engine had less than 80k on it maybe a valve job would do, but with 100k+ you could do the whole thing. New bearings and rings at the least. Checking the cyl bore and cam/lifter wear once the heads are off will answer that question really well.

.
 
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If it's white smoke, and the plugs aren't dark and shiny, then it could just be condensation in the exhaust system. Could also be coolant. How is the coolant level ?

Sal
 
White smoke is water. Could be under side of the carburetor spacer if water goes through it. Not sure, but I think those came into use later than '69. Otherwise, leaking intake gasket or even a rusty intake manifold. Possibly a head gasket, but suspect of last resort.

Oil smoke is blue, excessive gas is black.
 
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