A Smith Posted January 13, 2023 Share Posted January 13, 2023 I have a 1999 Mack CH 613. The engine froze and blew a hole in the oil cooler housing. Then noticed water leaking on passenger side from block. Not from freeze plugs, there are very small holes under the freeze/ expansion plugs. Can someone tell me that’s going on. Does it mean my engine block is cracked Quote Link to comment Share on other sites More sharing options...
blackdog2 Posted January 13, 2023 Share Posted January 13, 2023 Junk ?........Boat anchor........internal ? Quote Ed Link to comment Share on other sites More sharing options...
67RModel Posted January 13, 2023 Share Posted January 13, 2023 (edited) 5 hours ago, A Smith said: Does it mean my engine block is cracked Sure sounds like it. There are others on here who will be along shortly that may know of a simple test you could do to find out. If the oil cooler broke and small holes appeared near the freeze plugs there is likely damage other places too. Edited January 13, 2023 by 67RModel Quote Link to comment Share on other sites More sharing options...
blackdog2 Posted January 13, 2023 Share Posted January 13, 2023 They call them freeze plug's .........That's were the sand come's out from casting .......when " KNEW ".......? Quote Ed Link to comment Share on other sites More sharing options...
Joey Mack Posted January 13, 2023 Share Posted January 13, 2023 Oh Hell.... can you post some pics? You can use a coolant system pressure tester to see the leaks... you may have to drain the oil and leave the plug out while pressure testing to see if coolant pours out... Sorry Bud.... jojo Quote Link to comment Share on other sites More sharing options...
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