It never fails, I just can't start my weekend a day early.
I replaced the coolant-weeping original brass radiator in my Dart Sport with a cross-flow dual-core aluminum radiator. I warmed up the car with the radiator cap off, checked for leaks, and waited until the coolant started bubbling. I then added more coolant mix until it was 1.5" below the cap, and still bubbling, then checked for leaks. I then capped it for a few minutes and triple-checked for leaks - it was solid. I thought to myself "time for a test drive" and drove out of the neighborhood.
Well, 1/2 mile away, while going through the first traffic light I heard a little "thunk" sound and then saw steam billowing out from under the hood. Yep, some sort of debris took out 1/4" at the edge of one of the rows about 3" from the top, and coolant began gushing out.
What's the easiest way to repair the radiator myself? I certainly don't want to buy another one, and I'd rather not be without the car for another 2-3 weeks while a shop bends me over repairing what I've got. I haven't been able to enjoy this car during the spring or summer for the last 3 years.
Should I just get some needle-nosed pliers and crimp & twist the offending core? I can't see 14-16psi being enough to burst through that...
i used jb weld too & it was holding up fine 5 yrs. later when i disassembled the truck it was in. i plan on re using the same rad. in the ramcharger in my sig. pic. FWIW i used a shop vac & lotsa duct tape to apply a slight vacuum to the inside of the radiaitor while the jb weld was curing i did this so the jb weld was actually pulled into the holes, covering both the inside & outside, instead of just sitting on top. 