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    ANOTHER WATER IN OIL QUESTION

    I think if i can rule out the heads then ill finall know its the block..Ill check the heads if there shot then ill get new ones and if still a leak then ill know its the block. If the heads check out ill know its the block. That sound about right?
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    ANOTHER WATER IN OIL QUESTION

    Thanks for your reply. I pushed for leak testing or magnifluxig the heads but the machinist was very confident they werent cracked ( he could have been wrong) and yes i should have checked the block, will do this weekend. I cleaned out the head bolt holes so that torque is accurate. Im leaning...
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    ANOTHER WATER IN OIL QUESTION

    yes something is leaking thats what this whole conversation is about.
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    ANOTHER WATER IN OIL QUESTION

    verry possible. i had a thought ..the heads were milled but i didnt check the block deck for flattness, i wonder if theres a leak there or if i cracked the heads when torqueing down if the gap was big enough. i thought i heard a few pops when torqueing down. im taking off and going to...
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    ANOTHER WATER IN OIL QUESTION

    Heads were checked and serviced by machine shop. He didnt check for leaks bec he thought they were fine by inspecting visually. Im going to do a pressure check under water tis weekend .
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    ANOTHER WATER IN OIL QUESTION

    The heads surfaces were milled
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    ANOTHER WATER IN OIL QUESTION

    ok just did pr trest with plastic over dipstick hole and distributor hole with soapy water and no bubbles.. Buuut did soapy water down all 4 oil drain holes on heads and there IS air from all of them which now makes me think the heads are cracked. idk how would air be escaping from those oil...
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    ANOTHER WATER IN OIL QUESTION

    Good thought. Only one head gasket on starboard side was blown and the corresponding valves were tuliped. No obvious anomalies on the port side head or gasket. Of course that doesn't mean it didn't cause something internally in theat head. I'm going to put plastic cling wrap over distributor...
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    ANOTHER WATER IN OIL QUESTION

    The big question is .... is the air coming from the head into the oil drain port ( would have to be a crack in both heads in the exact exhaust port , no?) OR Is the air coming from the galley( no obvious cracks visible)/ bottom end of engine meaning block is cracked? or am I missing...
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    ANOTHER WATER IN OIL QUESTION

    Yes
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    ANOTHER WATER IN OIL QUESTION

    Im betting since that its both heads in the same spot (if you set them side by side its the same spot) its probably the block.?? Big mystery to me is why only air coming from those two oil drain holes in the heads and not all of them
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    Head gasket orientation for 4.3 Vortec

    Appreciate the advice No indication of Top, bottom or left or right. It seemed more intuitive to put flatter side on the block , it had the metal corners down too. Why do they put the extra metal on one side? Seems like itd be for a reason?
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    ANOTHER WATER IN OIL QUESTION

    Sorry more specifically referring to pr testing the whole system again not with the heads specifically.
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    ANOTHER WATER IN OIL QUESTION

    Put intake manifold back on and pressure tested again this time the same air sound is still coming from the rear of the Port side, head oil drain port and from the SB side front head oil drain port. Im assuming, Being that theres air from both sides either theres a crack in both head( in...
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    ANOTHER WATER IN OIL QUESTION

    When pressurized with 15 psi, there is air coming out of the oil drain hole in back of head that when i put finger over it the sound changes and definitely air coming from there and also just discovered the same air sound coming from front starboard side oil drain hole in head
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    ANOTHER WATER IN OIL QUESTION

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    ANOTHER WATER IN OIL QUESTION

    The gasket was cooked. See pics above. I have a leak in the cooling system now I'm trying to pinpoint. 2 different problems. One is fixed. Thanks
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    ANOTHER WATER IN OIL QUESTION

    all cylinders within 5% in compression. gauge said 150-155. Cheap Napa gauge. so its prob not that high. would a leak down help at this point to further rule out or pinpoint the issue?
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    ANOTHER WATER IN OIL QUESTION

    Yes the gasket and valves got cooked from advanced timing.. were past that. now working on finding leak in cooling system.
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    ANOTHER WATER IN OIL QUESTION

    I pressure tested an am hearing a leak that seems like in rear port side head . I'm trying to narrow down the problem. If possible. Nothing from intake manifold or dip stick does this indicate the head is cracked?
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