how to bleed coolant system

[fingers]

could anyone please tell me how to bleed the water system on my 75 1.8 without using one of them vacuum things and also how to flush the system out, many thanks...

[chrissyboy]

Originally Posted by fingers

could anyone please tell me how to bleed the water system on my 75 1.8 without using one of them vacuum things and also how to flush the system out, many thanks...

my guys took off the top hose andstuck hose pipe in and run it through till is was running out clear ,they then took off bottom hose and drianed the system,replaced the hose`s ,check the condidition of all hoses filled slowly ,then ran engine and bleed the system with the heater set to high ,the bleed valve was in between the engine and the battery , keep the ank topped up when bleeding then when coolant runs in one movement from the bleed value close valve check the level in the tank should see the fins sticking up or with a torch shine it on side of tank to reveal the max min marks. dont over fill it replace cap run till fan kicks in ,check at a later date when cold .level will drop when cold so if checked when hot/warm the level will be higher .

[SD1too]

Robert,

It's in the Haynes manual. Not perfect, but better than nothing. The £19 will be an investment for life, and you can order on-line and have it delivered to your door in 24 hours.

Simon.

[fingers]

Originally Posted by chrissyboy

my guys took off the top hose andstuck hose pipe in and run it through till is was running out clear ,they then took off bottom hose and drianed the system,replaced the hose`s ,check the condidition of all hoses filled slowly ,then ran engine and bleed the system with the heater set to high ,the bleed valve was in between the engine and the battery , keep the ank topped up when bleeding then when coolant runs in one movement from the bleed value close valve check the level in the tank should see the fins sticking up or with a torch shine it on side of tank to reveal the max min marks. dont over fill it replace cap run till fan kicks in ,check at a later date when cold .level will drop when cold so if checked when hot/warm the level will be higher .

thanks, sounds simple enough. i shall give it a try tomorrow, when they took off the top hose and stuck a pipe in, where was it running out from,

[SD1too]

Robert,

One thing which Chrissyboy has overlooked is that the expansion tank should be removed and raised as high as possible during the venting process. As I said, it's described in Haynes.

Simon.

[chrissyboy]

Originally Posted by SD1too

Robert,

One thing which Chrissyboy has overlooked is that the expansion tank should be removed and raised as high as possible during the venting process. As I said, it's described in Haynes.

Simon.

no it dont ,leave the tank alone ..the tank would be lifted to allow gravity to do the same thing that running the engine will do ..

[chrissyboy]

Originally Posted by fingers

thanks, sounds simple enough. i shall give it a try tomorrow, when they took off the top hose and stuck a pipe in, where was it running out from,

the put the hose in to where the hose went over and the coolant ran out of the hose that would of sat over that , so water in and water out the hose .

[SD1too]

Originally Posted by chrissyboy

no it dont ,leave the tank alone ..

Chris,

Raising the tank is specified in MG Rover's RAVE.

Simon.

[chrissyboy]

is it , so is alot of things that is in the haynes manaul but it does not mean their right .

im going on the way it is recommended ,which caused further problems and the way my guys did it and it sorted the system out ,so which way would you think is right ?

[justmicky]

Originally Posted by SD1too

Robert,

It's in the Haynes manual. Not perfect, but better than nothing. The £19 will be an investment for life, and you can order on-line and have it delivered to your door in 24 hours.

Simon.

Or you can get one here for £13.95 delivered