Lump Needs Identifying

[dipsomaniac]

car is looking very sick at the moment. am removing radiator. can someone please identify the lump in the picture - it is bolted to the bottom of the radiator.

[dipsomaniac]

this is the front of car if anyone needs to know what you need to dismantle to get to rad

[big_kev]

Is it the air pump ?

[mumof4]

You had an oil leak there dipso??

 

Cant help with the lump im afraid.

[big_kev]

Late as usual hinny

[mumof4]

Better than coming too early eh kev :P

[big_kev]

Deviation !

[mumof4]

Profuse appologies.

 

why would an air pump be attached to the rad??.If i knew where my TIS was id have a gander for you dipso

[dipsomaniac]

you were quick there mumof4. yes, there is a leak somewhere - car is 10 years old this year. thanks big kev. what does the pump do. can i just disconnect it. it doesn't mention it on the tis when removing the rad.

[dipsomaniac]

just had another look at the pump and it looks more like an electric secondary water pump. can anyone confirm?

[big_kev]

What do the pipes connect to ( I thought the air filter ! ) ?

[dipsomaniac]

just had another another look and you are right big kev. it connects to air filter so must be air pump. thanks again

[Steve S.]

This "lump" is technically called the "coolant run-on pump", found I think on V6 motors only. It keeps the coolant flowing after switch off to prevent hotspots etc. I've actually replaced mine with a s/h one as it was seized. Has it made a difference...no idea!

[wood73]

it is an auxillary air pump, its purpose is supposedly to bring the cat up to efficient working temp quicker.

you usually hear it making a noise when you start the engine from cold.