Old Merc lower unit removal question

i have a friend with a 79 Merc 140 that needs a water pump. The lower unit wont come off? All the obvious stuff unhooked . I have done this on a newer Merc V6 and plenty of Johnsons. What gives ? Put wood wedges in it an only a quarter inch seperation. Is the drive shaft stuck or am I missing something?

put it in gear.

21 Contender

What would that do?

I have heard the drive shaft will seize if not geased last time it was change… and you ae screwed.

48’Sea Fox
Twin Force 350 3 strokes
“Rum Runner”

you did remove the bolt under the trim tab, didn’t you?

quote:
you did remove the bolt under the trim tab, didn't you?

And the shift linkage rod.

Capt. Larry Teuton
Cracker Built Custom Boats

X2 on Capt Teuton. Remove the water uptake screen and disconnect the linkage.

ZX