" I have two new 2002 Crusader
" I have two new 2002 Crusader 5.7L MPI engines in my 89 Luhrs 320. I have had all 4 exhaust manifolds fail withing 30 hrs. of operation. Two of the replaced manifolds have now failed. This is all being done under warranty, but I've about had it. Nobody seems to have an answer except for "faulty cast iron manifolds" But, 6 of them?!! The engines are closed loop cooled and the boat is in fresh water. Does anyone have any idea what could be happening here? "
" I have two new 2002 Crusader 5.7L MPI engines in my 89 Luhrs 320. I have had all 4 exhaust manifolds fail withing 30 hrs. of operation. Two of the replaced manifolds have now failed. This is all being done under warranty, but I've about had it. Nobody seems to have an answer except for "faulty cast iron manifolds" But, 6 of them?!! The engines are closed loop cooled and the boat is in fresh water. Does anyone have any idea what could be happening here? "