Jahbrahh

so i cracked my head so i bought a new one and put it on after everything was back together i drained the oil and flushed the coolant system then started putting antifreeze in the radiator, the coolant started leaking out of the back somewhere nead my head/block area but i cant see back in there so i couldnt tell what it was.

RTorrez1

If it is leaking from somewhere toward the rear of the head? There is one of the head bolt that you have to put sealant on to avoid the coolant leak. I can't remember which one it is. Hopefully someone that knows will say which one it is. Also was the head you put on a brand new head or a used one? If it was used it could be warped. And another thing is that it wasn't torqued correctly or the gasket got crushed while putting on the head?

Firestorm500

Could also be the back freeze plug on the head. Get a mirror and a light and look around back there.

RTorrez1

I forgot about that freeze plug.

Firestorm500

If that's what it is, the only sure way to fix it is to pull the head back off. The rubber plugs don't work.

I know this by experience.

RTorrez1

Very True!
I never replace a freeze plug with anything other then the brass ones.

Rockfrog

There is also the temp sensor hole back there. The head bolt that needs sealant is the front corner, as it passes through the coolant passage.

Jahbrahh

Thanks guys, but someone told me you have to buy new head bolts after you torque them down then take them out? They are brand new but I already torqued them down can I reuse them when I put it back together?

Rockfrog

They are usable twice, as per the FSM.

Turbo X_J

No reason to remove the cylinder head until you determine where the leak actually is.

Jahbrahh

We'll it's not the freeze plugs it's leaking in between the head and block but it's a brand new gasket..

Firestorm500

Head and/or block could be warped.

Did you follow the proper sequence and torque values for tightening the head bolts?

Did you use a Fel-Pro gasket set?

Jahbrahh

Yes I used a fel-pro gasket set and I got my head resurfaced and checked for cracks and I torqued all of the bolts down right

Firestorm500

By your posts so far, I am going to infer the head was used.

It may have an internal crack in it, that you can't see from the exterior. Sometimes even Magnafluxing won't show it.

But if the head was used, you should have probably had it Magnafluxed before installing it. It will show cracks the naked eye can't see.

Does it run rough when you start it? Is any coolant getting into any of the cylinders?

Turbo X_J

Let's start again from the beginning. How do you know the head was "cracked" was it dumping coolant everywhere?