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I have an 85 F250 with a 6.9 for a parts truck. I am trying to sell most everything on it. The motor has about 300,000 miles on it. It smokes a little bit but it still runs strong. The only problem that I am aware of is a leak where the manifold and the Y pipe connect.
I have a 85 6.9 that lost a bearing. Had the heads off 5000 miles earlier at that time cylinders were in good shape. Didn't have coolant loss issues or anything off that nature. Should be a good block, heads, etc. Its FREE for the taking.
Wheres your crack at,if its a water jacket crack from freezing it very easy and cheap to permently fix,if its easy to get to you want need to pull the engine.Just stop drill each end of the crack,5/16" hole will be fine,thread it with a tap and put the cheapest grade bolt you can get with the red loctie on it and screw in and grind it off flush with the block.Now do that all the way down the crack,slightly overlaping the last bolt you did,when done and all ground nice and flush it will be as good as new,waynebo
Thats exactly where my crack is,i beleive just removing the starter will give you all the room you need,i flushed my cooling system with spic&span,ran for a few hour,to work and back,drained again and filled with fresh water and ran for awhile,flush,out,repeat several times with fresh water.Then got 2 bottles of the Bar's liquid glass and poured in and filled with clean water,NO ANTI-FREEZE,Ran for about 1500 miles,not the 20 mins they recomend and it is fine now.I will do the pinning repair when i have more time,but to ditch that engine because of that would be a crying shame,its not hurt at all,waynebo O YEA i just got back monday from a 1700 miles round trip pulling an eqipment trailer and a front end loader,did not have to add any water.