One of the common problem for RB engine is................................water plug on cylinder head..front and back...........(*_*)'
If you have a big water leak from engine........................maybe this is the one!!!
It's common probrem now for especially R32 cylinder block. If you lost one................It's going to be a mission to repair...............like this one!!!
Threr are some aftermarket water plugs like this
you can clean gear box.................in same time???
