JB weld and 4.0 head swap=rust?
I plugged my water jackets with JB Weld or Kwik Steel, I can't remember now. I removed my radiator line and this is what I found. It is like a rusty gritty material. It is somewhat sticks to a magnet. I'm thinking that JB weld that I used to plug the coolant passages is rusting and creating this? Anyone else with experience? I know everyone is using this stuff so I hope someone else can either confirm or deny this issue?
I used quik steel on mine I stuffed disolving foam packing peanuts in then the expoy on top. I think your problem is completely unrelated did you use distilled water when you filled your cooling system back up when you did the swap? I have been running my 4.0 head for 3.5 years now and I love it.
build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
I've been running mine for about a year with jb weld and nothing like that yet. You could try asking in the cj forum I know a lot of them are running that setup maybe you could get some more opinions.
My Build Threadhttp://www.jeepforum.com/forum/f22/p...seven-1090289/
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