Crack in cylinder wall.

Posted by Tim H. in NY [69.195.60.125] on Saturday, November 30, 2013 at 16:48:27 :

Disassm engine due to a light knock. #6 rod bearing upper half fatigued- no other issues (last owner must have lugged or idled too much) . Crank will be ok. When cleaning up cyl walls with a bead hone, found what I believe to be a crack in #1 cyl running from the notch at the bottom of the cyl to the top, adjacent to the exhaust valve. Think I,m looking at pulling it and sleeving at this point. My question is, I did not have any overheat or coolant issues at all. Cylinder shows no sign of coolant in it, oil had no coolant in it. Is this a common spot for a crack in a T137? Is there no coolant at that spot? Crack seems worse at the bottom, can almost catch a fingernail in it.

Follow Ups:

• Re: Crack in cylinder wall. - Vaughn 10:19:13 12/01/2013
• Re: Crack in cylinder wall. - Daryl in Oz 02:39:07 12/01/2013
• Re: Crack in cylinder wall. - Kaegi 19:20:41 11/30/2013
  • Re: Crack in cylinder wall. - Tim H. in NY 20:15:24 11/30/2013
• Re: Crack in cylinder wall. - 1361230023330dMzS1J 18:28:43 11/30/2013
  • Re: Crack in cylinder wall. - Tim H. in NY 19:53:59 11/30/2013
    • Re: Crack in cylinder wall. - gmharris 23:51:14 11/30/2013
      • Re: Crack in cylinder wall. - Tim H. in NY 11:39:31 12/01/2013
        • Re: Crack in cylinder wall. - gmharris 13:10:56 12/01/2013
          • Should have said, "More resistant to cracks". - gmharris 13:11:54 12/01/2013
            • Re: Should have said, "More resistant to cracks". - Tim H. in NY 01:09:51 12/02/2013
              • Re: Should have said, "More resistant to cracks". - Kaegi 17:50:07 12/02/2013
                • Re: Should have said, "More resistant to cracks". - Tim in NY 14:07:41 12/05/2013
                • I have the tool - Sherman in Idaho 00:26:19 12/03/2013
                  • I would like to have seen that in operation. - gmharris 20:49:00 12/03/2013
                  • Re: I have the tool - Kaegi 00:49:33 12/03/2013
    • Re: Crack in cylinder wall. - Kaegi 21:34:13 11/30/2013
      • The pump pressurizes the block, 10 psi @ 3200 rpms. - Chriscase 23:47:02 11/30/2013
        • Re: The pump pressurizes the block, 10 psi @ 3200 rpms. - Kaegi 03:29:52 12/01/2013

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