Started my truck this morning to warm up and when I went back out to leave and there was antifreeze pouring out the overflow. I put a new rad cap on hoping that was the problem but it is still doing it. I'm thinking that my head gasket is gone. The truck is a 90 with the original motor so it could also be that the head is cracked. Any thoughts? going to pull it it the shop this morning as soon as I get all the snow out from in front of the doors and start to tear down I guess. Any helpful tips on pulling the head?

 

you could do a leak down test, this would rule out if it's the head gasket. Could be a seized up t-stat as well or the water pump is gone.

If it is the head gasket, not a bad job. You might need a cherry picker, heavy lug that head is!

 

how do I do a leakdown test?

 

Basically you put each cylinder at top dead center and compressed air enters the cylinder. If there is a head gasket leak you'll see bubbles coming out of the radiator cap or air coming around the head.

 

Kinda having the same problem. But mine Leaks antifreeze when its full till it gets to a certain level then stops. Does this when the truck isnt on though... Thoughts?

 

mine was always low too before this happened. I could never see any in the snow and it wasn't going into the oil.

 

Hmm maybe we should get together and show our problems XD lol

 

Took the head off my truck tonight. The only thing obvious was the bolt between 3 and 4 was carboned right tight in its hole. Is the normal? Didn't see anything really wrong with the gasket. Broke 3 manifold bolts off in the process. At least the head is out and easy to work on.

 

Pictures!

 

I'll take some today and try to get them on here.

 

cleaned up the block a bit to take a picture and it looks to me like number 5 was leaking. It is really black on the drivers side of the block and it was the bolt between 4 and 5 the was stuck in its hole and the bolt between 5 and 6 was a little hard to pull out also. What is the quickest way to get a photo up on here?

 

So here is what I'm looking at.

 

Is number 5 hole scored?

 

Just went out and wiped it out and yes it is scored a little. I guess this just turned into more than just a head gasket.

 

So I'm thinking I need to pull it out to have that repaired.