Mark B

So I've dropped the old coolant, if that's what you want to call it. Not sure it was doing much cooling by the state of it. Nasty shade of very dark brown. Full of rusty bits. Removed the thermostat (that's seen better days) and refitted the housing before flushing the system with the hose. Flushed the rad too. Both passing clean water now. Then remembered I needed to turn the temperature control in the centre console to hot. So, got the hose back out again... and flushed the engine again. No dirty water coming out. I'll flush it again before I put it all back together. Thinking I might do it again in a year's time. Maybe add some system cleaner first. Now I've got the old thermostat out I can make sure I get the correct replacement. Also going to get a new clip for the bottom rad hose. Looking quite rusted. The others all look fine. Removed the coolant reservoir and gave it a rinse out. Pretty nasty in there. I've put some white spirit in it and left it to soak. See how that goes. Not really expecting much Improvement though. Wondering if Killrock might clean it. Supposed to be safe on plastics. Next bash at it at the weekend, assuming I can get the new thermostat, clip and coolant.

So I've dropped the old coolant, if that's what you want to call it. Not sure it was doing much cooling by the state of it. Nasty shade of very dark brown. Full of rusty bits. Removed the thermostat (that's seen better days) and refitted the housing before flushing the system with the hose. Flushed the rad too. Both passing clean water now. Then remembered I needed to turn the temperature control in the centre console to hot. So, got the hose back out again... and flushed the engine again. No dirty water coming out. I'll flush it again before I put it all back together. Thinking I might do it again in a year's time. Maybe add some system cleaner first. Now I've got the old thermostat out I can make sure I get the correct replacement. Also going to get a new clip for the bottom rad hose. Looking quite rusted. The others all look fine. Removed the coolant reservoir and gave it a rinse out. Pretty nasty in there. I've put some white spirit in it and left it to soak. See how that goes. Not really expecting much Improvement though. Wondering if Killrock might clean it. Supposed to be safe on plastics. Next bash at it at the weekend, assuming I can get the new thermostat, clip and coolant.