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  #16 (permalink)  
Old 06-06-2009, 06:45 PM
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Quote:
Originally Posted by fast68
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Tried that. Held pressure just fine and none came out

Well, drivers side head is off. What a PITA it is to remove them while still in the car

Headgasket stuck to the head and it looked perfect. Looked a bit in the cylinders and they looked fine with only lines were the cross-hatch pattern. I still need to rotate the motor to see all of the cylinders though.

Pistons had very little carbon build up and much of the outside of the pistons were clean, only real carbon was on the domes. I don't know, but it looks like this motor was pretty fresh?

If the pistons are oversized, don't they usually have that stamped on the tops?
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  #17 (permalink)  
Old 06-06-2009, 08:20 PM
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Quote:
Originally Posted by billsnogo
Headgasket stuck to the head and it looked perfect. Looked a bit in the cylinders and they looked fine with only lines were the cross-hatch pattern. I still need to rotate the motor to see all of the cylinders though.
Did you determine that this side was where the leak was from?

Last edited by cobalt327; 06-06-2009 at 08:29 PM.
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Old 06-07-2009, 06:22 AM
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No, I tried to pressurize the cooling system again, and they just decided to start tearing it apart. I just want to be able to get this thing straightened out so I can drive it by July for Car Craft. Each year something happens to stop me. This year may be no different

The passengers side is next.
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Old 06-08-2009, 06:20 PM
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Update:
Pulled the other head. Same thing with passengers side head. Headgasket stayed in one piece and looked in good shape. No anti-freeze in this bank of cylinders. Had it in all four of the drivers side, but think it came from the coolant passages as the block did not drain down.

All four cylinders had even carbon build-up. Has .030 over pistons, cleaned one to find out. I had a good look at two of the cylinders and they looked good. One had something I wasn't sure about, but kept trying to drag my fingernail across it and could not feel anything.

I will crank over the motor by hand tomorrow to check the other five cylinders.

So far I am guessing either:
a cracked or warped head
cracked block that I have not seen yet
one of the bolts had allowed anti-freeze up into the exhaust, not the cylinder.

If anti-freeze is burning in the combustion process, would there be big plumes of white smoke, or could it just put out small whisps of smoke?

I looked and never had seen any smoke coming out after both times it left puddles, but do know it was somehow internal as the four puddles were where the mufflers were, and where the collector bolted to the exhaust system.

If I do not see any cracks, and the heads come back fine, would I be stupid to put it back together? I really rather not tear it down to the bare block if possible.

Also, when they usually check heads for cracks, do they need to strip them? Or can they check them when assembled?

Sorry for all the questions, but I am more of a parts changer than a mechanic, and know to seek out advice from others who are wiser.

thanks again for those who can help me.
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  #20 (permalink)  
Old 06-08-2009, 06:45 PM
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Quote:
Originally Posted by billsnogo
Update:
Pulled the other head. Same thing with passengers side head. Headgasket stayed in one piece and looked in good shape. No anti-freeze in this bank of cylinders. Had it in all four of the drivers side, but think it came from the coolant passages as the block did not drain down.

All four cylinders had even carbon build-up. Has .030 over pistons, cleaned one to find out. I had a good look at two of the cylinders and they looked good. One had something I wasn't sure about, but kept trying to drag my fingernail across it and could not feel anything.

I will crank over the motor by hand tomorrow to check the other five cylinders.

So far I am guessing either:
a cracked or warped head
cracked block that I have not seen yet
one of the bolts had allowed anti-freeze up into the exhaust, not the cylinder.

If anti-freeze is burning in the combustion process, would there be big plumes of white smoke, or could it just put out small whisps of smoke?

I looked and never had seen any smoke coming out after both times it left puddles, but do know it was somehow internal as the four puddles were where the mufflers were, and where the collector bolted to the exhaust system.

If I do not see any cracks, and the heads come back fine, would I be stupid to put it back together? I really rather not tear it down to the bare block if possible.

Also, when they usually check heads for cracks, do they need to strip them? Or can they check them when assembled?

Sorry for all the questions, but I am more of a parts changer than a mechanic, and know to seek out advice from others who are wiser.

thanks again for those who can help me.
Generally if you are getting water into a cylinder, that piston will be much cleaner that the rest. You could have a cracked head in the area of an exhaust port that is leaking coolant into the exhaust I suppose..
Do all the spark plugs look the same. Was one a lot cleaner than the others. Usually a plug from a cylinder with water in it will be cleaner than the rest.
When you put the pressure test on, did it slowly go down in pressure.
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  #21 (permalink)  
Old 06-08-2009, 06:56 PM
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Hey, guys- what if an exhaust guide was loose? I had problems w/loose BBC guides (they're removable) in a set of peanut-port heads once (but not w/coolant leakage- it was found during a rebuild)- and once was enough...

I would think if this were the case, the back of the exhaust valve might be cleaner than the rest.

Last edited by cobalt327; 06-08-2009 at 07:10 PM.
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  #22 (permalink)  
Old 06-08-2009, 07:00 PM
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Quote:
Originally Posted by T-bucket23
Generally if you are getting water into a cylinder, that piston will be much cleaner that the rest. You could have a cracked head in the area of an exhaust port that is leaking coolant into the exhaust I suppose..
Do all the spark plugs look the same. Was one a lot cleaner than the others. Usually a plug from a cylinder with water in it will be cleaner than the rest.
When you put the pressure test on, did it slowly go down in pressure.
I will have to check the plugs. It looks like one cylinder might be cleaner, but all are pretty clean overall.
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