OK, it turned out to be a dumb idea later, but it seemed kinda smart at first ...
Once Upon A Justalittlewhileago, I spanked some persistent, tailgating adolescents (Two Kids and a Kia …
what's next?) on my way to a client. As I exited I-4/Tampa Speedway, and upon re-entry into normal space, I noticed by beloved starship was idling
awfully nasty. With the engine/carbs within earshot, I could hear "suh … ssss … suh … suh … ssss" and the tach was fluctuating. It wasn't much further, so I rough 'n rumbled the rest of the way.
After finishing my business, I walked to the parking lot, popped
Le Hood, and started the car. She chubbled her way into some sort-of idle, wherein I pondered the engine looking for the "suh … suh … ssss … suh" culprit. "Holy Crap! The right-side Weber is loose!", just bobbling on the manifold. While scratching non-existent scalp and neck itches, some thermal-dynamic-dissimilar-metals theories and formulas flooded my cranium; "Damn, I guess putting those steel washers between the aluminum-alloy carb bodies and mounting nuts was stupid, stupid, stupid. You never worried about the nuts scratching the bodies any other time, why then after the last rebuild a few months ago? Knucklehead; heat, cold, expand, contract. Got it?"
So, I broke out my adjustable metric tool (crescent wrench), removed the 4 washers, tightened the carb down snug, and then discovered the other carb's nuts were less-than snug. I thought, "Boy, the 914 Forum is gonna love this!" as I tightened down the other side long enough to get home and remove my "upgrades".
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Rouser!