Well I haven't done much in the last few days, but I have an update anyway.
A while back, I did all my coolant tubes to and from the radiator in polycarbonate tubing. Polycarbonate is used for bullet resistant windows and various other things, because of its impact resistance. The stuff is really strong. I took this tubing and hit it with a hammer, swung it against my vise, clamped it in the vise, it's
really hard to break. I thought it might have a problem with the ends shrinking after having a hose clamp on it for a long time, so I made some stainless steel rings to go on the inside, and hold the shape.
So I put everything together, filled it, ran it, checked it, and the stuff didn't get soft when it was hot, didn't warp, everything was fine. After sitting there for about a month or two, I came out one day, and all of the ends had broken off. Both ends of all five pipes, had just broken off, all at the same time.
The short ones:
The long ones:
So decided that it must've been the ring that I put in to help, that hurt. I had some tubing left over, and just redid the two long pieces. They're the only ones you really see anyway. I put them in with no stainless rings. I just used steel tubing for the other joints.
So far, I've only heated it up a couple of times, but it's holding together fine. I don't have any new pictures yet, but the coolant is much cleaner after refilling and flushing it about 6 times due to a leaky water pump, leaky radiator twice, and these broken tubes.
You can see in this picture, it was pretty muddy. It's nice and green now.