You mean something like this ?? Yes it made a big difference. Drove it last week with all heat controls to cold and off and still feel heat thru floor boards it seems . .

 

One might wonder, where did the metal tabs go, if they didn't just rust away to nothing .....

 

bad worn out antifreeze...

 

Steve:

No my question is where in the engine block or heater core might they have gone if they did NOT rust away to nothing ? As previous owner did not properly maintain anti freeze that is one price that I paid for .... I am not getting as much heat yet as expected, they could have lodged in one of the lines, or heater core itself, or somewhere in block ? That was my question if anyone has been thru this ...

 

Bumping this up so I can attach a pic. My question today does anyone know the routing of where the coolant hose which has a splice and two hose clamps goes ? One end goes to the firewall for a connection to the heater core. This hose does not get as hot as the other one which goes from heater core to front top of engine.


This shows more about where located ...

 

Left side facing the engine the hose there goes to the front of the engine water connector on intake. The other hose goes to the tube that runs under the intake to the water pump to pump water through the heater core.

 

Stonedpony - thanks. Will check on a pulled motor to see about that one that goes under the intake and if I will be able to get to that ....

 

if you take the two hose clamps off and connect a garden hose to one end, you should be able to pump several gallons per minute thru the system and OUT the other end of the hose.. Try running forward, then switch hoses and pump the water backward thru the system... either way you should get GOOD flow.

 

Steve:

Ok, but then there goes all the anti freeze that I just put in there. If I wanted to isolate the engine and heater core and save what is in the radiator, wonder if that is possible ? My concern is those metal tabs if they broke off the old water pump before rusting away completely .... they could be anywhere in the cooling system if might seem ... but if I have a clog in that one line and I flush one way thru heater core can check that flow. If I flush back into tube that runs under intake - where would I look for that exit of fluid ? Others than Steve might have the answer as well ...

 

Okay, take a pan, a large pan, and place under your radiator passager side and drain the radiator at peacock with a hose attached to the pan. That antifreeze in the radiator is now saved. Now place said antifreeze in a bucket.
Now move the pan to the driver's side and undo the lower hose to the radiator and let that antifreeze drain into the pan from the engine. Place antifreeze in the bucket.
Now you have most antifreeze saved as you are going to lose some.
Take the top hose off at the radiator and pace the water hose into the radiator and let the water come out at bottom of the radiator onto the ground or where ever you want it to fall as it is going to get very wet. You have just washed out the radiator.

Unhook the heater hose from the back of the engine block at the tube running under the intake there should be water pouring out of it as well as you need to place a hose on it and run it to the ground or you will fill up your intake valley with water when you wash the engine out.

Now the engine is going to be very tricky as you have to run the engine and allow water to go into the engine and through the heater core unless you undo those two lines and do them by their selves.
You need to take the thermostat out and just let the housing be bolted on as you want the water to flow.

With the engine running and with one hose going to the ground and the other hose letting the water run through it on high you will clean out the block to a point as there will always be something left in the block unless you do an engine break down and rebuild.

Now your heater core is going to be backflushed and just flushed by forcing water both ways through it by the two hoses attached to it and you are going to get wet.

Now that water is flowing everywhere at a high rate of wetness it is time to start placing all the hoses and thermostat back and refill the engine with coolant.

That is about as simple as I can get it to try and explain how to wash out an engine cooling system.

Oh, that metal that you were worried about? It is gone as the Antifreeze ate it all up and it is maybe .000001 per million molecules per one Antifreeze/h2o molecule. Antifreeze is corrosive as it eats stuff and has a high level of freeze and boil temp.