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04-24-2011 01:23 PM #1
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like Jerry said... .there is a crack or something not line up gasket or water port holes to fill up that fast its big . as for head bolts the threads need sealer on them but even with no sealer they will not fill up the cylinder. last one that fill up one that fast.. that i look at had it bad spot in the ex port ....weak castingLast edited by pat mccarthy; 04-26-2011 at 04:03 AM.
Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip
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04-24-2011 03:18 PM #2
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Last one I had do that had a crack in cylinder wall about 2" long half way down.I don't think it would leak that fast even if you left a bolt out.Charlie
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04-24-2011 09:34 PM #3
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Did you drill the heads for steam holes?
Technical Articles at Greg's Engine & MachinePLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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04-26-2011 03:46 AM #4
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No I did not. The block is in stock form
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04-26-2011 02:17 PM #5
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It's not the block that gets drilled, it's the heads. Did you look at the link I provided for you?PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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04-26-2011 04:59 PM #6
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No sorry haven't had time. Here are my compression numbers...
Originally Posted by techinspector1
#1 = 175 psi, 3 = 150, 5 = 140, 7 = 170
#2 = 142 psi, 4 = 168, 6 = 166, 8 = 157
#4 is the one that water flows out of. 1, 6, and 7 only have a little when I turn it over.
The heads were done by a machine shop before I got this mess. I can only assume that they are fine.
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04-26-2011 05:17 PM #7
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Not if they don't have steam holes drilled in them. Originally Posted by Bigbzc
Ken Thomas
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04-26-2011 05:08 PM #8
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I just skimmed through your post and remembered that they said that they tried to rebuild the stock 350 that came in this truck. (78 K5 Blazer) They found that the 350 block was cracked and then found a 400 to build for it. The heads were already done and I think it could be possible that the heads were off the 350. So, with that in mind and the compression specs I posted, is it possible that my problem is that water is entering the cylinders through these non-existent steam holes?? Originally Posted by techinspector1
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