How do I bleed a Mk1 coolant system??

[DanClio]

Need to know what to do to bleed the cooland system after changing a hose....

Any help would be greatly appriciated.

Cheers
Dan

 

[ClioDaN87]

Which hose? A hose to the radiator? Top or bottom?

 

[DanClio]

its the top hose....

 

[ClioDaN87]

Just seen your other post, you need to run the engine just let it tick over maybe give it a little touch on the throttle cable nothing toooo hastey from cold when running keep checking to see if both the pipes (top and bottom of rad) get warm and youve got hot air into the cokpit its fine done and dusted.

 

[DanClio]

so change the hose, drain out all the coolant, top it up and run the engine until it gets warm. And this wont give me any air locks?

 

[ClioDaN87]

Why you draining all the coolant if your doing just a hose change?

 

[DanClio]

dont you need to?? also its a muddy brown colour.

 

[ClioDaN87]

Well no you dont for a hose change but if its a browny muddy colour then yeah its adviseable, ok well take off the bottom hose off the rad and empty the rad and engine of coolant (lowest pipe) then conect lowest pipe back on, replace hose that your changing fill up coolant following antifreeze guidelines (dont need much as its summer) and then run till your getting warm air into your cokpit and until the pipes are warm and your fan kicks in, then everything is a-ok!

 

[DanClio]

ok thanks alot m8, so do i really need to use the bleed nipple on the rad or not??

Thanks for all your help, if im ever up your way il buy you a beer!

 

[ClioDaN87]

Nah dont worry about it, yeah slacken the bleed nipple off on the rad will ensure you a better result of a air free rad!

Take it easy!

 

[DanClio]

Cheers mate will do that tomorrow in my lunch break. Lol. Have a good one

Dan