whilst oyu drain the coolant, have a hose running under the care to dilute the coolant, it is poisonous to an extent but this should dilute it so its harmless.
Yes.Is it really as simple as just pulling it out and waiting until nothing else comes out then pushing it back on?
About 5 litres in total but you won't get it all out, a washing dish should be ok.How much coolant could I expect roughly to come out so I know what size container to use?
Yes.Do we fill it with the car totally 'off' (i.e. no keys in the igntion barrel)
Yes.Is the header tank the coolant expansion tank?
Thanks mate, unfortunately we arent doing it on my driveway so I dont know if this members driveway had a hose at the front of the house etc. which is why I would prefer to collect the coolant ( just to be on the safe side)whilst oyu drain the coolant, have a hose running under the care to dilute the coolant, it is poisonous to an extent but this should dilute it so its harmless.
Just over 5 litres in total but you won't get it all out, a washing dish should be ok.
Thanks Paul, that sounds alot simpler than draining the coolant, but is there any risk of doing damage by not draining it ?I have never drained the coolant when doing this job.
Disconnect the small expansion pipe from the coolant tank. Unbolt the tank and lift it off it's mounting backet then position the tank as low as possible leaving the cap tightened and the large hose still connected.
Very little coolant will escape when you remove the inlet manifold, replace the gasket etc. and when finished refit the tank and top up as necessary.
It is possible for coolant to run into a cylinder or two via open inlet valves. If you drain the coolant, you eliminate this possibility. I appreciate that it also may not happen but I'm a belt and braces man. Coolant in a cylinder could cause a hydrostatic lock and further damage (broken rings etc.), when trying to start up on completion.Time to revive this thread. How did the change go? Im in the same boat...and have heard, as mentioned via the link, coolant can get into the cylinders. If possible..I would really like to not have to replace all the coolant...but like you say....worried this method causes coolant to run into a cylinder...
Tried to find a guide on the forum for coolant bleeding and replacing of coolant...but no luck