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Disassembling Mercruiser III SSM Lower Gear Unit

hd.alzd

New member
Hi
I have two problem with disassembling lower gear unit of III SSM Mercruiser and unfortunately I have not access to its service manual book.
1-
There is difficulty in removing two vertical shafts.
I create special tool to jack up these shafts but it didn't work (this tool jack up these shaft just about 3 millimeter) and it blocked. this make me suspicious that there might be some sort of fixing parts preventing removal of these vertical shafts.
2-
How can I disassemble the nose tip of lower gear unit to access propeller shaft ? is it threaded or pressed in ?

some photo of lower gear unit is attached.
It will be appreciated if anyone can help me.
thanks
IMG_7630.jpg DSC01669.jpg IMG_7930.jpg
 
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