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[Peti]

There are two types of cooler I could buy for my Omega B :



(the blue arrows stand for rubber hoses)

I have aircon....but I have the one    WITHOUT   those 21mm outputs.

There's a small pump that helps coolant to circulate, it is at the end of HEATER HOSES(going to heater matrix), under expansion tank :



When I buy a brand new cooler, shall I buy one WITH those extra outputs and two more hoses and that extra aux pump ? (please note : I DO have aircon!)

Or is that pump (that I already have) enough ?

If I buy the one WITH the extra pump :
 - Where that pump should be attached ?
 - How does its wiring connector look like ? I'm not even sure if I have that one at all.

[ngrainqey]

AFAIK its only the 3.2 that has the 2 aux cooler pumps- at the bottom of the radiator and just next to the header tank, think plods have two pumps though regardless of engine but could be wrong
alex

[Andy B]

AFAIK its only the 3.2 that has the 2 aux cooler pumps- at the bottom of the radiator and just next to the header tank, think plods have two pumps though regardless of engine but could be wrong
alex

You are  My 3.0 only has the one pump, but I've seen other cars of a similar vintage with two! 

[ngrainqey]

nobody likes a smart arse
were they by any chance elites? or ex plods? lol

[Andy B]

nobody likes a smart arse
were they by any chance elites? or ex plods? lol

Moi?! A smart arse?     
No idea what went where, the pump by the header tank is something to do with the winter pack I think, mine's an Elite & the cruise gubins is fitted there. 

[ngrainqey]

yeah the purpose of the pump is to circulate warm coolant for the heater even when engines off IIRC

[omega3000]

AFAIK its only the 3.2 that has the 2 aux cooler pumps- at the bottom of the radiator and just next to the header tank, think plods have two pumps though regardless of engine but could be wrong
alex

You are  My 3.0 only has the one pump, but I've seen other cars of a similar vintage with two! 

  Another pump  Didnt know about that one 

[doz]

I've got the facilities to run the heater with the engine off but I though that used the pump by the radiator

[ngrainqey]

I've got the facilities to run the heater with the engine off but I though that used the pump by the radiator

i thought it used the one next to the header tank then the second is just the auxillary-aux pump

[Andy B]

I've got the facilities to run the heater with the engine off but I though that used the pump by the radiator

The pump by the rad is to circulate coolant around the block when the engine is hot & has just been switched off to prevent hot spots being created in the block/heads. 

[Peti]

Sorry guys...but too much ...AFAIK.... and... I thought.... and.... as far as I remember 

Does anyone have in his pocket a sentence containing any of these words ? :

...that's for sure !
...do this !
...do that !
 

Mine's 2,5litre , petrol, with aircon.