Hello,
I removed the lower unit last fall from my 1984 mercury 60hp since it was taking in water and losing l/u oil to install a seal kit this winter. I had removed it a few times in the last 20 years to replace a water pump and a couple impellers. I didn`t want to mess with r/ the prop shaft so I took it in, they told me the reverse gear was seized up and a few bearings were shot, anyway $600 and a used lower unit later I was on my way north to install it. Everything seems to match up but it stops about 3/4" from mating up, the exhaust still has play, the bolts all line up, the water tube lines up fine. I rotated the flywheel and it slid up to get the nuts on but just binds up, didn`t want to force it. Any ideas, Thanks.
I removed the lower unit last fall from my 1984 mercury 60hp since it was taking in water and losing l/u oil to install a seal kit this winter. I had removed it a few times in the last 20 years to replace a water pump and a couple impellers. I didn`t want to mess with r/ the prop shaft so I took it in, they told me the reverse gear was seized up and a few bearings were shot, anyway $600 and a used lower unit later I was on my way north to install it. Everything seems to match up but it stops about 3/4" from mating up, the exhaust still has play, the bolts all line up, the water tube lines up fine. I rotated the flywheel and it slid up to get the nuts on but just binds up, didn`t want to force it. Any ideas, Thanks.

