Coolant swirl pot....why have one?

[magpies]

I see most (all?) TVRs have a swirl pot in the coolant system, but most other cars do not! Could a TVR run successfully without?

[dvs_dave]

It acts as the expansion tank also.

[magpies]

all cars also have expansion tanks.....some separate (on inner wing) others within the radiator (older cars)

[K4TRV]

......and the older cars, with Rover V8s like an SD1 probably qualifies, have expansion tanks with the radiator - TVR just took your "plastic" expansion tank and put it in a v nice aluminium "swirl pot". Yes, a necessary requirement, but it could just as easily be an SD1-like tank on the inner wing.

[griff 200]

Swirl pots on tvs remove the air bubbles from the bottom hose area to stop air from going back to the block to make it more efficient , the large hose going into the bottom of modern tanks are doing the same. Just looks different But shinny !!!

[C3BER]

Cerberas don't have them..........yet..

[spitfire4v8]

yes they do, it's the big plastic bottle with the blue cap on it. Not a swirl pot in the exact sense because the water doesn't swirl in it, but it achieves the same end of separating air from water. It works great

[C3BER]

It's like saying an elephant is a lion because it's got four legs and farts

[macdeb]

Could be to contain more coolant also?

[TaimarTurbo]

Most cars do not have the radiator mounted so much lower as the engine as on a TVR.
Getting rid of all the air becomes a vital in this situation.

Edited by TaimarTurbo on Saturday 28th September 20:29

[TaimarTurbo]

Most cars do not have the radiator mounted so much lower as the engine as on a TVR.
Getting rid of all the air becomes a vital in this situation.

Edited by TaimarTurbo on Saturday 28th September 20:29

[Sardonicus]

TaimarTurbo said:

Most cars do not have the radiator mounted so low much lower as the engine as on a TVR.
Getting rid of all the air becomes a vital in this situation.

Edited by TaimarTurbo on Saturday 28th September 18:45

[glenrobbo]

On an 'S', the swirlpot is a vital part, along with the expansion bottle, without which there would be no lively everlasting discussion about where the pressure / blanking caps should be fitted.

[Mr Cerbera]

C3BER said:

It's like saying an elephant is a lion because it's got four legs and farts

Yeah, but wouldn't it be cool to have one of these ....



....underneath the bonnet, not connected up to anything

[C3BER]

I've seen some rather shiny rocker covers that would go with that.

[spitfire4v8]

C3BER said:

It's like saying an elephant is a lion because it's got four legs and farts

Not entirely, the function of a swirl pot is to separate the air from the water by centrifuging the water/air mix so the heavier water goes to the outside where the outlet pipe is and the lighter air stays in the middle and goes up to the top of the tank. The multichamber tank in the cerbera achieves the same end of separating the water and air but without centrifuging the water, so they do the same job but by different methods. End result is the same.

[C3BER]

I rather liked my lion and elephant

See what you mean but I've found my cerb to be a right bugger to bleed, or should I say I did.