Re: Sticking Valve
Back in the time when I used our business coupe as a daily driver, it developed a BAD case of sticking valves. At first we didn't know what was causing the problem, but after getting warm it would routinely loose so much power that it couldn't get up over the curb into the driveway. We changed most of the electricals item by item, opened up the valve chamber and checked for problems. Nothing seemed to help.
Finally the owner of a local antique car restoration shop, who had been helping to diagnose the problem, suggested I try something like Bardahl. Our local auto place didn't have that, but did have STP. So...... built a cardboard dam and gagged the poor old 'A' with about half of the can thru the carb, not real handy for an updraft carb!! When it finally died, I then poured the rest into the oilpan. The first trip around the block was not successful, but the second went quite a bit further and the third lasted about an hour. Back to daily college commute the next morning. The problem never surfaced again!!!
This was a long time ago, back in the early 60's, so more modern chemicals may work better.
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