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Posted by dave horvath [24.131.120.209] on Tuesday, September 20, 2011 at 20:12:26 :
We have been working to get a 1947 WDX ready for the WV Road Rally October 14-16. Truck hadn't been run in 30 years. The guy I got it from got it running with new battery, points, plugs, and wires and changed the oil and filter. We replaced the exhaust system, rebuilt both axles, installed new tie rod ends, and are halfway through a complete brake job. I haven't road tested it yet, but I adjusted the timing with a vacuum gauge. The engine runs strong and quiet with 17-19 lbs of vacuum.
Problem is it smokes a lot from both the downdraft pipe (no PCV on this engine) and the exhaust. It even blew smoke rings yesterday. Smoke is bluish gray so I don't suspect head gasket. Also, since it is running well, I'm thinking it is rings, not valves.
I picked up two products: Sea Foam and Bardahl's No Smoke. Sea Foam claims to free stuck lifters and rings. The NAPA guy said to let a third of the bottle siphon into the intake manifold vacuum passage, put a third in the crankcase, and a third in the gas tank. No Smoke is a thick oil-like substance that claims to have high-density polymers that fill the worn areas between valves and valve guides and between pistion rings and cylinder walls.
What do you guys think? Try them both or just the No Smoke? Has anyone used these products? I want to reduce the smoking and preserve compression so my son and his buddies can drive the truck on our 300 mile adventure in the mountains of WV.
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