Thanks to all who contributed ideas. I think I tried about every one of
them, and have a few things to put together, but I want to take my time and
get the fine tune-up things right as I go.
I replaced the dizzy cap and wires, measured the point gap, took the Bosch
platinum plugs out (came with the engine) and installed NGK's from my spare
engine, checked timing, replaced the fuel pump to be sure there was good
fuel flow, and verified that the floats in the carbs were staying up near
the top as they should. None of that corrected the problem. Along the way
I found increasing cylinder compression from front to rear, which indicates
to me that it is likely that some idiot milled this head at an angle rather
than flat.
In the end I happened to bump the condenser on the side of the dizzy. The
engine was running at the time and I heard it change slightly. Looking
closer I found that the screw that holds the condenser to the side of the
dizzy was very slightly loose. That was all it took to cause a lot of
hunting and learning a few things about the engine I had not discovered
before.
I plan to get a torx or phillips head screw to replace this screw because
the small straight blade screwdriver seems to want to slip when I try to
tighten it down. Maybe a lockwasher will arrive with the screw.
Tom
69 2000 "Mr. Hyde"
Portland, OR
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