Do the ports behind the water pump connect?

[Seville]

Hi All,

I am trying to change my water pump on my 2000 v6 explorer. I got the pump off which was kinda a pain. I saw that there are two inlet holes on my engine block. I tried to flush it with low water but it would only come out the same hole I put the water into? Are the two holes on the engine block where the water pump is bolted connected? I thought if I put water in one of the holes it would go out the adjacent hole. Do I have a blockage or is this how it is suppose to be? Any help would be appreciated.

 

[J_C]

They are both inlets to each of the two banks, that eventually comes out at the thermostat housing.

I wish I could give you a definitive answer but I don't know of a reason why they wouldn't connect, I mean all I can figure is that the pressure needed to overcome gravity, to get it up to the thermostat housing and back down through the other bank, is greater than the pressure to make it come right back out the same hole... or else you have a blockage.

Here is a rough diagram even if not the same engine, but it does not really show the joining of the two... but they kind of have to or else where would the other bank go?

Either way... thread bump!

 

[wollimann]

They are both inlets to each of the two banks, that eventually comes out at the thermostat housing.

I wish I could give you a definitive answer but I don't know of a reason why they wouldn't connect, I mean all I can figure is that the pressure needed to overcome gravity, to get it up to the thermostat housing and back down through the other bank, is greater than the pressure to make it come right back out the same hole... or else you have a blockage.

Here is a rough diagram even if not the same engine, but it does not really show the joining of the two... but they kind of have to or else where would the other bank go?

Either way... thread bump!

View attachment 451047

I have flushed the cooling system with a electrical water pump but without thermostat housing.
There is and must be definately a connection between the two water ports.

regards Wolfgang

 

[Seville]

Thanks for the reply! When I tried to flush it I just used a garden hose with a little pressure but the thermostat was still connected. Should I try it with the thermostat removed? I just don’t want to button it all back up if there is some kind of blockage.

 

[wollimann]

Thanks for the reply! When I tried to flush it I just used a garden hose with a little pressure but the thermostat was still connected. Should I try it with the thermostat removed? I just don’t want to button it all back up if there is some kind of blockage.

I would try more water pressure, but the problem will be a tight fit for the garden hoses.
Some kind of selfmade adapter would be helpfull.

I think you must not remove the thermostat for a water circulation.
Maybe blocking the water cooler hoses?