OK here we go again...sorry to be annoying here...I just looked at that link again X and I see three freeze plugs on the pass and I can see two for sure on the dr but I think there is a third back there covered in sludge too...
also I looked at the front again and somebody may have to help me here but it looks like there is a big thick piece of metal down around the balancer...would this be an 'external balancer' some have been mentioning?
if anybody wants I could send pics of this motor for them to see
TIA