Possible Blow Headgasket, compression test results
02-18-2011, 10:17 PM
#14
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
NO, you will NOT get bubbles in the coolant with a bad intake gasket. there is no combustion pressure pushing its way into the cooling system. However, coolant will get drawn into the engine because fo the intake vacuum.
So do I think you have a bad head gasket... NOPE.
I do think you need to improve your reading comprehension though.
02-19-2011, 12:11 AM
#15
5th Gear Member
Join Date: Aug 2004
Location: Arizona
Posts: 4,103
From what I see with the compression test, you don't have a bad head gasket.
There is a test where you see if any carbon diaoxide is in the coolant, can't remember the name for it but it will tell very quickly if there is.
A blown head gasket will show up on this test.....
There is a test where you see if any carbon diaoxide is in the coolant, can't remember the name for it but it will tell very quickly if there is.
A blown head gasket will show up on this test.....
02-19-2011, 12:45 AM
#16
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Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
From what I see with the compression test, you don't have a bad head gasket.
There is a test where you see if any carbon diaoxide is in the coolant, can't remember the name for it but it will tell very quickly if there is.
A blown head gasket will show up on this test.....
There is a test where you see if any carbon diaoxide is in the coolant, can't remember the name for it but it will tell very quickly if there is.
A blown head gasket will show up on this test.....
02-19-2011, 02:40 PM
#17
2nd Gear Member
Thread Starter
Join Date: Apr 2007
Location:
Posts: 368
I do remember smelling fuel in my radiator, But I thought that would be from the lower intake gasket being bad, Being that the fuel injector was right above where the lower intake gasket was ripped. If it's not my head gasket I wonder what could be causing bubbles to come up into the radiator. I know my lower intake manifold was extremely loose so there was my huge vac leak problem I was trying to find (lol) Hmm.... I wonder what's going on here. and sorry adder, I comprehend what you are saying, I just have to be %110 sure that the head gasket isn't my problem.
02-19-2011, 05:14 PM
#18
1st Gear Member
Join Date: Jan 2011
Location: NJ
Posts: 84
a blown lower can often times seem like a head gasket, if the oil isnt milky, theres no white smoke and you got those compression results, i would replace the lower intake gasket and see what happens, thats just my personal opinion, some would say your already tore down to right there so you mine as well even to save cost of possibly having to tear down again. the only other test i would do is take off the valve covers and check to see if the head bolts are loose from stretching from the heat of a blown gasket. I would aslo drain the cooling system and refill it and make sure there are no air bubbles in it the smallest air bubble can make it over heat, so will a clogged journal in the head which could have happened from the head gasket sealer!
02-19-2011, 05:20 PM
#19
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Thread Starter
Join Date: Apr 2007
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Posts: 368
I did not use anti freeze, I noticed that the #1 spark plug had small amounts of rusty little spots, This is where the lower intake gasket was blown, I than noticed even more rusty spots on the 3rd and 4th cylinder spark plugs, I dont know if the water could somehow get to the 3rd and 4th cylinders from the intake being so loose, or if its even water deposits on them. I know the intake runners on the heads are soaked with oil, thats how loose the lower was.