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Thread: leaky heads
          
   
   

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  1. #1
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
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    Apr 2005
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    bay city
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    10,546

    you say you check it to see if flat how did you check this ? did you look at the print out of the old head gasket on deck/heads to see low spots if any? reading old head gaskets will tell you alot. are the deck pins holding heads up .you would have a hard time over decking a sbc things like pistons would be coming out of the deck @TDC so it would have to be .025+ before you may see this .i would say the head chamber is crack or heads crack under a valve seats. heads need to be look at better
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

  2. #2
    insidemic's Avatar
    insidemic is offline CHR Member Visit my Photo Gallery
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    Oct 2011
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    terre hill
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    Thanks for the response. I checked the heads and deck using a precision straight edge and a feeler gage checking horizontally , vertically , and diagonally in multyple spots. I never thaught to check the dowl pins but im gona. I'll go look at the gaskets again just to be sure. I never had this problem before , its driving me nuts. If head chamber was cracked wouldn't i loose compresion in that cylynder? You got me thinking theirs a possible crack under the valves . I was thinking about sealing off the two water passages on the intake side, and filling heads with coolant let em sit on the head stands and see what happens.
    Insidemic

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