Out Of Round

Some things move slowly at Casa McThag.

Take tires for The Beast; I originally got them back in April 2022, almost 32 thousand miles ago.  I tossed four, apparently, good tires because I had a bad vibration at interstate speeds.  I blamed the balance and the previous owner's notorious tendency to buy cheap tires.

It was not the tires.

I spent the next two years and 16 thousand miles replacing front suspension parts in the most commonly to be the problem to least likely to be the problem.  It was the left front control arms.  The design of the control arms makes diagnosing them difficult because they don't get hand-wobbly when they're loaded-wobbly.

One reason that it took so long to fix is that the vibration didn't really happen at speeds around town, and I don't really go on long trips much any more.  Vibration at interstate speeds?  Stay off the interstate!  Problem successfully ignored!

Oh, and drive Moxie more...

I discovered, sadly, that replacing the offending suspension components did not completely cure the vibration in the steering wheel, but now it was cyclic.  Every minute or so on the interstate it'd shake and every minute or so would stop.

When I got the Camaro rims, the road-force balancing discovered two of my tires were out of round.

That made sense.  The suspension shake was rather violent, it could have damaged the tires.  Another clue is I can mitigate the cycle somewhat by rotating a wheel a lug or two.

Here's hoping that new tires cures this!