If you can remove the housing from the engine(I bet you can), use a torch
to remove the 10mm bolts.Those 10mm bolts are high strengh, but that
dosent matter. JB weld will fix up the o-ring seat and any pitting on the
hose nipples. Use lots of anti - seize compound.Use a drill to ream the
crust out from the long holes where the two attaching bolts go. Put lots
of anti - seize in those holes.