so its just water to water opening.....ahh this is making more sense to me now....i'd say your right jim

 

Holy snikies batman! Find any of that missing metal? Almost 700k and still going

 

Here are some more pics. The wire is going through the water pump housing through that hole. Where would that metal end up? The radiator looks like it has been patched before, dont know what was used but when i pulled the lower house there was some pieces of lead in it and in the bottom of the radiator so im thinking i found the stopleak, but havent found any cast iron yet from the block. Hope this pics help

 

I think that's the jacket's coolant inlet port . . . . .. sorta.

A little bit of the casting cores moving around left an opening that's . . . . .less than optimal.


-> In the first image, you can see the track the return from the radiator takes on its way to the center inlet of the actual water pump.

-> The outer diameter of the water pump then plays into the cylinder jacket by way of the ugly port.


If you've a die grinder or such, clean it up a little for good sport, else put it back together.

 

Could it have frozen ????I know frost plugs usually go but wow!!! you kinda see that stuff when the motor hasn't enough Glycol

 

I think i see stop leak back in that crack in the 1st picture.

 

He said he found stop leak in the radiator. So is there supposed to be a hole there in the first place? Maybe the casting was bad and it eat through. Water can do amazing things

 

So is this supposed to be here or not? I want to get my mind off of it.

 

No, it's not supposed to be there.

It looks to me like it's going to cause poor circulation in the whole system. It's letting coolant from what should be a high pressure area flow into the suction side of the water pump. I think you gotta block it off somehow. Does not have to be watertight, even a sheetmetal patch held on by screws would probably be enough.

I'm not sure what I'd do about it if it was mine. I'm thinkin', trying to come up with a simple yet brilliant solution.

 

JB weld!!! just kidding.

 

Hey, if he got everything ground down flat and smooth, then cleaned it up very good...

JB Weld on a patch might just be the ticket. If the patch is in the oil cooler side of the hole, the pressure difference is only going to hold it down tighter.

Of course if it comes loose it's gonna block something important for sure...

I'd want a couple screws in addition to the JB weld.

 

Just run it

 

I am going to get the block rebuilt before it goes into the crew cab if i get that truck, Should i try to get it fixed before or after its hot dipped?

 

If it's coming out and getting it hot tanked, then you can have somebody who is experienced at cast iron work weld it up.

I'd just look for a better donor if that's all this motor is for you.

 

ok, thanks, I might have another block lined up to rebuild.