97 FZJ80 with 220k miles. The top end is rebuilt with some upgrades very recently, and I also added lots of new parts with complete new cooling and exhaust systems. Driven 330 miles since engine got put back in.
There is a crack, right below the power steering pump (also new), and it leaks a decent amount of oil when the engine is running. My rough estimate is it'd be 3/4 of a quart of oil every 1000 miles or so. I don't believe the crack was there before, although I cannot be sure as I had numerous oil leaks prior to rebuild, but those were more on the a quart per 5000 mile rate. The engine had overheating issues in the past and this certainly could have caused it to crack, but location of it makes me suspect that it could have happened when the guy who put it back in over torqued it.
I am looking for opinions on what could have caused it and how to fix it. Pulling the engine back out, drilling holes to stop the crack from expanding and welding it the obvious one, but could this be fixed without pulling the engine out?
See pictures below. The crack is right above the red line.
There is a crack, right below the power steering pump (also new), and it leaks a decent amount of oil when the engine is running. My rough estimate is it'd be 3/4 of a quart of oil every 1000 miles or so. I don't believe the crack was there before, although I cannot be sure as I had numerous oil leaks prior to rebuild, but those were more on the a quart per 5000 mile rate. The engine had overheating issues in the past and this certainly could have caused it to crack, but location of it makes me suspect that it could have happened when the guy who put it back in over torqued it.
I am looking for opinions on what could have caused it and how to fix it. Pulling the engine back out, drilling holes to stop the crack from expanding and welding it the obvious one, but could this be fixed without pulling the engine out?
See pictures below. The crack is right above the red line.