Put rad flush in whilst on the old system get as much sh*te out as you can then put whatever your replacing on the system on.

I have got another heater matrix and got another radiator so they are going to be replaced . I'm really asking now how many pipes and maybe breathers I would have to clear out before I put the other heater matrix and radiator in
Thanks

I have heard of people crushing a dishwasher tablet and putting it in the coolant tank and running the car for a few hundred miles,then flush it out.

Hi all was just wondering I bought a 2002 corsa c 1.0 12v . Which needed work done on it the timing chain had gone so the whole top half of the engine was stripped down to the top of the head luckily the only damage was the inlet valves were bent so got new ones and got a whole new timing chain kit that cam with a new water pump and head gasket so we got the whole thing back together again and then we found the the water system was bunged with k seal .. this is where I need advice the engine when running is not cutting out but there is no eccelortation most of the time . Where the water goes though the engine there has been about 4 flushes done on it and has cleared a bit but still not great so got another heater matrix so am going to replace that also was going to replace the radiator in case there is still more k seal that might find its way to the other heater matrix and block it up the corsa has air conditioning any advice is greatfull



[Edited on 28-01-2015 by burncdm]