The best / suggested way to fill coolant from empty?

V

Vinny73

Active Member

Posts

154

• Jun 26, 2009

• #1

Any advice please on refilling a 4.6 V8 cooling system from empty, I drained down the system and now want to refill.
Should I do it from the expansion tank only, or is there any value in additionally filling from areas like the top hose directly into the rad and block for example.
I want to avoid any air locks obviously. I’ve read its about 11 litres in total of cooling the system will take, is this accurate?

Thanks in advance…

 

nathan5346

Well-Known Member

Posts

11,939

Location

oldbury

• Jun 26, 2009

• #2

My mate filled his from the top hose, left it running for 20 mins whilst topping it up from the expns tank.

 

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Vinny73

Active Member

Posts

154

• Jun 26, 2009

• #3

A sure fire way of getting water into the rad, to both sides of the stat and the block huh? this is the way I'm thinking of attacking it...

 

stretchie_

Active Member

Posts

476

Location

Gloucester

• Jun 26, 2009

• #4

I topped up most in the top of the rad and the rest in the expansion bottle.

If it was 11.5l, then I did 10l in the rad, turned the engine over for a minute then the rest into the expansion bottle (still keeping an eye on the level mark)