Flushed it out on Saturday, and had an early flight / 4am drive this morning to the airport. Safe to say, working a hell of a lot better. I would not say perfect as passenger side is slightly warmer, but I did need to turn heater down which has not happened in years!
Still had a bit of a smell when first started, but went away. Back into Adelaide on Thursday, will see if the smell retains.
No coolant level loss that I can tell, these heater cores seem to have o-ring seals from main lines to core itself. Hoping it was just too much pressure when backed up.
All in all took well over 5 minutes
those spring clamps I hate with a passion. Not a lot of room up there, I ended up having to use a needle file to cut through them without damaging lines. A task I do not want to do again...
Flushed with Nulon radiator cleaner, let it sit at almost 100% concentration for ~5 minutes then flushed/diluted. Then siphoned back and fourth for 45mins, slowly. Flushed both directions with mains pressure. Lots and lots of small calcified particles came out, like sand.
Some images:
These clamps can kiss my ass
1996 Jeep XJ
2011 Jeep KK
1976 Holden HJ
