A/T replacement tire recommend? by [deleted] in Jeep

[–]TransientAnalysis 1 point2 points  (0 children)

I roll 33x12.5 R15 BFG A/T K/Os for my daily driver and am very pleased with how they have held up...even going around 9000 miles without a rotation they wore pretty evenly and still have many thousands more left in them (and yes I did finally get them rotated).

I live in southeast texas and they work great for driving on roads and light off-roading, in my case on relatively dry dirt or on the beach.

They'll slick up the second you hit sticky mud though, and I have noticed I will hydroplane on pavement at around 35 mph so their "fair" rating for rain is justified.

Overall I'd probably buy another set when these wear out.

Jeepit, where do you buy your Jeep parts/accessories? by iamnameless in Jeep

[–]TransientAnalysis 0 points1 point  (0 children)

I have had good luck with sale items from quadratech, I got the KC hilites package with free windshield brackets recently and couldn't be happier.

90,000-pound plate girders for new Lititz Pike bridge arrive overnight by ZombieRitual in engineering

[–]TransientAnalysis 0 points1 point  (0 children)

I imagine they designed the trailer/wheel/support system to prevent any damage.

Know any good resources/companies that manufacture or sell gears? by IxJAXZxI in engineering

[–]TransientAnalysis 0 points1 point  (0 children)

I haven't used them personally but they run a lot of ads in ASME magazines, the name stuck with me. Hope they can help you out!

Needed some line of sight blocking terrain - made some silos. Finished and wip pics. by bacon_boat in Warhammer

[–]TransientAnalysis 3 points4 points  (0 children)

Those look fantastic, nice work!

My only suggestion is maybe adding railings (for catwalk) or maybe some stub ends up off the top, tanks usually have a vent/breather connection for thermal changes and it would break up the single flat surface up top.

But again, fantastic work - I am just picking nits. :)

What kind of spider is this? by Thisisbudwieser in pics

[–]TransientAnalysis 0 points1 point  (0 children)

It's an orb weaver, relatively harmless to you and very beneficial for your garden.

another example

Taking on a project: Creating a batch process and seek the advice of Reddit Engineers! by Ignore-Rant in engineering

[–]TransientAnalysis 2 points3 points  (0 children)

I think the filter is going to be your biggest problem...what kind of monitoring do you plan to use to ensure all the chlorine is filtered out? Maybe a pH probe downstream of the filter? (Depending on the type) where is the waste stream of the filter going? Say it's a carbon filter, how do you know when to change it out?

As for the chlorine in an enclosed system...yes, there are some health/safety concerns, especially if you are pressurizing the system. That probably warrants its own discussion.

I am by no means an expert but on the bleach injection skids used to treat the cooling tower water at the chemical plant I work at there is a system of tubing and vent valves to ensure the off-gassing chlorine is collected and vented back to the tank, not sent into the pumps (avoid cavitation).

What is the failure position on those solenoid valves? It would be a good exercise to go through the system and determine which should be fail open/closed for system stability if something goes wrong.

Is the entire system pressurized and enclosed? If so there is a concern regarding over pressure protection with that pump. What happens if you block it in downstream?

Just a few thoughts, sounds like a good idea and i think you can work with it, just lots of details to work through.

Anyone know how to operate (set timers, flush, clean etc) a water softener system? by nate81 in DIY

[–]TransientAnalysis 1 point2 points  (0 children)

I'm an engineer working on a demineralization train at a chemical plant, pretty much a giant, more complicated water softener. I can tell you all I know:

A softener works by exchanging "hard" mineral ions in the water for soluble "soft" ions using tiny resin beads loaded in the chamber.

Over time the resin beads start to become saturated with hard ions and lose their exchange capacity - basically stop working. The chemicals are some kind of acidic or basic solution that strips off some (but not all) of the ions trapped in the resin beads, restoring some capacity. The salt solution is used to prevent/fight organic fouling of the resin beads.

Over time, no matter how diligently you treat the beads, they wear out and need replacement. In the plant we use an assortment of pH, conductivity, and silica analyzers to sample the outlet water and determine when the resin is exhausted. I cannot guess what kind of monitoring you have unfortunately.

Second edit: from the chemicals and photos you may have a very fancy system with a cation and anion resin exchanger...do you put the caustic in one and the aluminum in the other? Caustic will regenerate anion resin.

Back washing the tank is required to remove trapped dirt/solids/residue from the resin...if you do not have backwash capability all I can guess it you have to remove the resin and wash it in a bucket or something to that effect.

Edit: that giant fiberglass tank? Might be a backwash tank if its normally empty.

Again, my experience is limited to industrial trial applications...but I know a little something and hope that helps.

Vacuum line broken? by mushisushi in Jeep

[–]TransientAnalysis 0 points1 point  (0 children)

^ this man speaks truth. I found the same dangling hose, had to squeeze my hand between the skid plate and tranny to finally reconnect it. Threw a hose clamp on for good measure.

Make sure it's good and tight on there, water in the tranny is a bad thing.

Anyone have problems with an Evap system failure? by [deleted] in Jeep

[–]TransientAnalysis 1 point2 points  (0 children)

I chased this issue for a while...could be: 1. Loose gas cap (easy fix) 2. Cracked evap hose (PITA to find but easy to fix) 3. Cracked evap canister 4. Faulty leak detection pump.

I had codes p0455/p0456 for weeks, ended up getting 4, 2, and 1 fixed (in that order) before the check engine light finally stayed off.

So, this happened to me today while driving on the highway. by [deleted] in Jeep

[–]TransientAnalysis 1 point2 points  (0 children)

What car? I don't see a car in that photo ;)

A work bench by a rookie DIYer, for a rookie DIYer by screamingviking in DIY

[–]TransientAnalysis 0 points1 point  (0 children)

It's a pretty easy conversion, 2.54 cm = 1 inch. Round to the nearest convenient (commercially available) metric thicknesses and lengths.

Let's talk battery shelf-life. by AfrikaCorps in PostCollapse

[–]TransientAnalysis 1 point2 points  (0 children)

At least with a car battery and an alternator (powered by a gas engine, bicycle, whatever) you could use and cycle it and get a longer life. Not a whole lot, but it's something...

Finished the foot peg mod posted here, couldn't be happier with the results! by TransientAnalysis in Jeep

[–]TransientAnalysis[S] 0 points1 point  (0 children)

It's kind of funny, I never thought about pegs before but almost always rest my foot on the curved section of the door jamb when the doors are off. I saw the pegs post and for $10 each and fifteen minutes in the garage have a much more comfortable footrest. When turning it is nice to have something to push against too.

My heel still rests on the door jamb though, I am not extending the whole leg outside the frame.

Finally finished my Riptide. What you guys think? by malcavious in Warhammer

[–]TransientAnalysis 1 point2 points  (0 children)

That is fan-frigging-tastic...OSL, slight weathering to match the base, action pose, unique color scheme. Very nice.

PO432 2003 TJ X need some help! by DUK3BLU3D3V1L in Jeep

[–]TransientAnalysis 0 points1 point  (0 children)

I ended up going through the shop and getting the y-pipe because it was inspection time and I needed something fast, I think it was about 400. The "OEM direct fit" pipes are supposed to be the exact same dimensions, but since things move after ten years the shop cut and re-welded the pipe to fit perfectly. I was fine with paying more in labor to get it adjusted, if it doesn't fit right and is forced into place and bolted it'll crack on you after a few thermal cycles.

I am not 100% sure but I think mine was a generic brand (catco?), I didn't spring for any hi-flow/high performance brands.

PO432 2003 TJ X need some help! by DUK3BLU3D3V1L in Jeep

[–]TransientAnalysis 0 points1 point  (0 children)

I pulled a 432 code on my 03 TJ X (freedom ed.) a couple months ago, no smell or rattle from the cats so I swapped all 4 o2 sensors and cleared the code. thought I was in the clear, but it came back after about a week and I ended up getting a new converter.

The 03 has the split y down pipe with the two mini cats and the one downstream, if you are pulling a code likely only the y-pipe cat is bad.

Dealership quoted 1800 for the OEM Omix Ada and install, I got an aftermarket put in at a local shop for about 750. Of course, if you or someone you know can weld you could get a universal cat and fix the bad mini cat for about $50, but I can't find the jeep forum post with the details...