blown coolant cap?

[pontiacws699]

Re: blown coolant cap?

guess im being initiated..... had it a month and here we go...:tup: Ill get a pressure tester tomorrow and see about a compression test. If I pull the plugs is that a deff way to tell?

 

[pontiacws699]

Re: blown coolant cap?

Add your self to the list of people rebuilding their engines.

(don't take the next comment to heart or be offended)

Someone should create a poll on how long after purchase did you require an engine rebuild.

well in all fairness it dows have 173k on it. I have a set of vortec heads and a cam/injec in the garage that i wanted to do but not sure if I want to go through all the pain of getting the intake done.

 

[djwaggoner]

Re: blown coolant cap?

That slime on the inside of your cap is 'foam' from oil getting into the coolant .=. BHG...............
At 173k it's probably due for a freshening-up anyway.
There are lots of guys here to help/advise as you go thru the process.

 

[aasltmike]

Re: blown coolant cap?

Add your self to the list of people rebuilding their engines.

(don't take the next comment to heart or be offended)

Someone should create a poll on how long after purchase did you require an engine rebuild.

Mine lasted 2 months before I spun a bearing and had to go the way of the rebuild...LOL The truck had 98,980 miles on it when I bought it and made it to 105,065 when the bearing made its condition known. The previous owner had only driven it 10K miles in the 10 years before I bought it, then I went to Texas and back plus several trips between Atlanta and Fort Stewart. No serious dogging or ragging on it, so I suspect the miles I put on it did it in.

 

[pontiacws699]

Re: blown coolant cap?

Mine lasted 2 months before I spun a bearing and had to go the way of the rebuild...LOL The truck had 98,980 miles on it when I bought it and made it to 105,065 when the bearing made its condition known. The previous owner had only driven it 10K miles in the 10 years before I bought it, then I went to Texas and back plus several trips between Atlanta and Fort Stewart. No serious dogging or ragging on it, so I suspect the miles I put on it did it in.

so you drove 7k with a blown head gasket?

 

[aasltmike]

Re: blown coolant cap?

so you drove 7k with a blown head gasket?

No, not a blown head gasket. Was driving one night when I started hearing the tapping under the hood. Spun a bearing in my dad's K5 Blazer back when I was in high school, so I knew what it was.

 

[pontiacws699]

Re: blown coolant cap?

No, not a blown head gasket. Was driving one night when I started hearing the tapping under the hood. Spun a bearing in my dad's K5 Blazer back when I was in high school, so I knew what it was.

gotcha:tup:

 

[pontiacws699]

Re: blown coolant cap?

I noticed that when i started it up I have no heat and the temp rises pretty quickly but when it does kick on for a few min(it doesnt stay on long) the temp stays in the low 200's? that common with a BHG?

 

[Fighting5thSVT]

Re: blown coolant cap?

Find the silver lining here. At least you got to squeeze in a few 1/4 mile runs in the "old" motor. That will make your first pass with the "new" motor that much more exciting!

 

[pontiacws699]

Re: blown coolant cap?

Find the silver lining here. At least you got to squeeze in a few 1/4 mile runs in the "old" motor. That will make your first pass with the "new" motor that much more exciting!

Id be just happy with the old motor.:tup:

 

[SY2455]

Re: blown coolant cap?

You can try doing a compression test to get a idea on which side and check the plugs while you are at it.

 

[QWERTYphoon]

Re: blown coolant cap?

Sounds like the same problem I had. It ended up being my thermostat. I would start there first before you start throwing money at it.

 

[gkrcr882]

Re: blown coolant cap?

Funny thing is, something similar happened to me on a Chrysler LHS at work. Owner drove it till it overheated and shut down, so it was a tow in. Replaced the bottle (pressurized), and when I went to fill/bleed it, there was smoke coming from the timing cover. Fearing the water pump/tbelt, took it apart and found the cover had bent in.

What this has to do with your truck:
After getting it together and starting to bleed it, coolant and air began shooting out of the funnel like a volcano. Found that the radiator fan relay wasn't working (coolant was boiling instead of actually transferring heat), and we neglected to open the bleeder valve on the thermostat housing.
So, aside from blown headgasket, you could have lack of airflow/heat transfer occuring, or a stupid huge air pocket. The LHS had the air pocket because the owner ran it till it was dry and overheated, however, if something screwy happened with yours, you could have one too.