I'm getting some well-thought out suggestions. Thanks to Michael P, Bob K,
Tim M, Jim G, Tony (TR4 Tony), Russ M, Irv K, Scott B, Chris, and Bill B.
My thoughts that it was fuel related seem to be supported by the fact that
most of you mentioned fuel issues. So far:
1. Bowl vents clear? Hmm -- we do have mud dauber wasps around here!
2. Fuel foaming due to vibration? (X2) Possible, and perhaps the new manifold
brace could add more vibration.
3. Sticky float or float needles?
4. Leaky floats?
5. Resonance due to new brace causing jets to sink down? (They're supported by
a spring, but it makes sense that resonance could cause the spring to lose
tension temporarily, the way a spring governor on a lawnmower engine does)
6. Needle(s) not properly seated in piston(s)?
7. Advance profile poor or advance mechanism sticking?
8. Loose engine ground cable?
9. Improper jetting for driving style? (Perhaps, but this didn't happen at
TWS and seemed to get progressively worse at ECR even as I tried to prevent
the problem by braking later and sometimes holding throttle pressure while
braking)
10. Bowl lids (ie: float hinge point) oriented improperly)? No -- this one
has been checked. The suggestion came from someone who was also asking
whether it happened more when turning one direction and not another --
direction did not matter.
11. Dirt in carb? (X2) Fuel filter was clear when checked on Saturday but I
haven't looked in the float bowls yet. I'll blow the lines back to the fuel
cell (no rust seen in fuel cell when I cleaned it out a few months ago --
found silicone worm scraps, though)
12. Oiling plugs?
13. Intake tract leak?
The suggestions will guide my investigation -- thanks, everyone!
Duncan
'52 Morgan red #6
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