Originally Posted by bob082484
I'm throwing myself upon the mercy of the forums for an answer to clean this crap out of my jeep! I bought my xj over 2 years ago with a cracked head and the PO tried to fix it with bars leak. So far I've flushed it over 8 times and its cost me 2 water pumps, a heater core, 2 thermostats, and all the hoses. I just flushed it again and its still in there! My reservoir was full of this rubbery brown crap and its running hot again. I'm open to any suggestions.
Did you replace the radiator? The radiator has many parallel paths so it is nearly impossible to flush it out completely (water will follow the pat of least resistance so once a few tubes are open the rest will remain plugged as water will now only flow through the "open" tubes). Flush the block/head as thoroughly as you can (if there is a block drain plug remove it), and back-flush the heather core.
Unfortunately "stop-leak" is a notorious pain to clean up. All you can really do is keep flushing, eventually it will all come out.