Question, what is this small spring for?

FWIW my spare made a high pitched squeaking sound when going over bumps but not always. After it rained it did not squeak for few days.

Tightened her up and all is good.

 

In your vac hose, if it coils then you have different type of flow through the hose and curves cause losses, especially in suction. Straight hose can improve laminar flow but you will still have turbulent flow next to the hose walls, which slows down air flow!

 

Put it up on jackstands, and wiggle the tire in different directions, see if a ball joint or tie rod end has play, if nothing, pull the strut and cycle the suspension at different steering angles.

That rubber bushing on the top of the strut looks dry rotted, guessing the bottom is too. That might be the source of the squeak.

 

So how does one reduce turbulent flow next to the hose walls? The inside of the hose is already smooth. Is there a magic solution?

 

The proper fluid velocity is the key. Too small a hose diameter will speed up fluid velocity and cause turbulent flow. Curves do the same thing. Too slow fluid velocity will cause turbulent flow. The key is the correct velocity for laminar flow. We have formulas and tables lol.

 

Hmm you may be right. Seems the obvious culprit now, it’s a 2020 with just over 30k on it and I’ve only had it for about 9 months so it may have sat out unattended a lot for all I know. The history was lackluster. Overall it’s been great for the ~8k I’ve put on it since purchasing so I can deal with a bad bushing here and there. Got a long list of upgrades to put on over time anyways lol.

 

Aaah yes yes. The formulas, I hate math haha.

I’ve been in the industry for quite a while and remember after switching to a different hard surface cleaning tool
That had about 50% larger suction hoses, the water movement/suction actually increased. How so

So for example I had this:


And I went to this:

 

With so little miles, now doubt if it is ball joint or tie rod. Probably just something simple has a dry rotted shock bushing, though it isn’t that old.

Good luck in your search, hopefully you find it.

 

PM me. We can go over the physics of moving fluids lol. Air is a fluid.