I have a 2wd Saph and I have noticed that the water in the cooling system is a brown colour. What is the best way to flush and refill the cooling system, any additives to prevent it happening again?

Many thanks

 

take bottom hose off of radiator and let it drain then put hose pipe in header tank and let run.
Never tried it but it might work. or you could drain the system and then refill it and start the car and then drain it again.

 

Brown water means rust! The block is cast iron and no antifreeze means it will rust, and the alloy head will corrode, not good!

Remove header tank cap. There is a bolt in the block on the exhaust side near the rear of the engine (17 or 19mm i forget now). You remove this to drain the block of coolant. Then remove the bottom hose of the rad to drain that. Remove the top hose and remove the thermostat (buy a new one when you buy your ANTIFREEZE!) and then use a hose pipe in the end of the housing to flush the old crap out of the drain hole (until it comes out clear). Then replace the bolt in the block. Then put the hose in the bottom rad outlet and flush it until clear water comes out of the top hose, then put it in the top outlet until it comes out clear in the bottom outlet. Replace all of your hoses and thermostat. Then remove the bleed cap hose on the thermostat housing, and slowly fill the system up with a 50/50 mix of good quality antifreeze and water. When coolant starts coming out of the bleed point replace the bung hose and continue to fill up the header tank to the max level. Then turn on the engine and let it idle with the cap removed until the fans have come on and gone off. Leave to cool (could take a while!). Then replace the header tank cap and again turn on engine and leave to idle until fans have come on / gone off. Check for any leaks and if happy thats job done

 

understand every apart from the above???? or is that related to 4wd???

 

On a 2wd thermostat housing, there are 2 hose outlets, one goes to the turbo water feed, the other is capped with a rubber bung:

 

will check mine when i go home,

but i'm prettt sure i only have one


be back later

 

There is defiantly 2 spiky.You may need to remove cambelt cover to see it though.

 

i one have one

i just look on my car

 

Mines only got one too (1989). It was only use on the three doors and early Saffs. The Cossie setup is self bleeding anyway if you leave the cap off a she warms up.