It almost seems silly - I had installed a pair of Rear adjustable Control Arms on my '04 R53 about 3 years ago.
I haven' had to touch them since. I now find it necessary to reduce the amount of rear camber.
Although for the life of me I can't seem to understand which way to turn the center turnbuckle in order to get the wheels to tuck in/reduce the camber.
Embarrassing as I feel right now asking this question - all pride aside: Which direction (e.g. clockwise or counter clockwise) do I need to turn the center turnbuckle to reduce the camber?



The reason that I need to ask such a simple question: I am currently out on the road/cross country - I stopped and jacked up the Mini in parking lot to make the simple adjustment but was run off by
security patrol before I could figure this out for myself.

Your help is greatly appreciated.

 

It depends on which way they’re installed. One end should have a left-hand thread, but without knowing which end is where, it’s impossible to say how to turn them. The simple way would be to look at the threads when you go to adjust them and realize that you want to act like the center section is a nut that you’re tightening onto the ends.

Keep in mind that adjusting camber will affect toe, though I don’t know how much.

 

Good points.
According to the image I posted above of the (driver side) adjustable control arm - If I rotate the center turnbuckle clockwise (away from me), the threads on the hub side will decrease/shorten (screw inward).
Transversely; the threads on the opposite end (chassis side), will lengthen; which causes some confusion as I cannot determine/see if the lower wheel is actually angling inward.

Although I'd only intended to do a minor adjustment to minimize the camber; as you'd pointed out - **Changing the camber will also have an effect on toe/rear alignment.** Obviously this is an undesirable byproduct of trying to
do this myself in a parking lot. <rant> I've already spent $300 on a 4wheel alignment and twice $$ on a frontend (after subframe refresh), within the past 2wo years. I really hate to make things worse.
But due to increased weight; I'm currently wearing out the inside of my rear tires at an uncomfortable rate.</rant>

Notwithstanding:
I'm in an area right now where there are very few (if none) Mini's. Besides the unprecedented expense of having to have another four wheel alignment - I haven't seen a shop that I would feel comfortable with handling my Mini.

Thanks for the response and honest insight.

EDIT/addendum:
If there's a plus side to my conundrum....
At least now I know what's been causing the unusual erratic vibration I've been experiencing @ 90 - 110+ mph since I've set out on my current journey

 

I’m impressed with your eyes. I can’t see the threads in that photo at all.

Actually, stupid question. Can you adjust the coilovers for more ride height to move the rear back to the correct camber spec for the time being? Assuming nothing is damaged, I wonder if the excess weight is causing enough extra rear toe to cause wear. Is the vibration from the rear tires being feathered?

Maybe someone here knows how much the rear toe changes as the rear suspension compresses.

 

It's not your eyes. I can't see the threads in the photo either

Not a stupid question at all - When i had realized how low the car was sitting - My first course of action was to dial up the coilovers to near stock height. That helped to not only raise the height but also straighten up the wheels to near vertical orientation.
By doing this I also noticed that the vibration that I'd experienced at high speed was significantly reduced to near nothing. However, after 3,500mi + (at high speeds), the excessive wear to the inside tires - the "damage" had already been done.
I'll be heading back to a Discount tire store a few miles away and order new/have them replace the rear tires.

But - Yes. Adjusting the coilovers (as you've also mentioned) is a reasonable measure for the time being.

Funny- But I can't help but imagining taking a family of 4 adults on a cross country roadtrip in a (slightly) lowered Mini and wind up having the same issues that I'm now experiencing myself....I mean, in my case, I'm just going to have to decide what stays and what goes in order to "lighten the load" - But having to tell grandma: "Sorry Nanna you're just too much weight for the Mini...You're gonna have to stay behind. Or take the bus the rest of the way"...