Stuck again

[craig newton]

96 Mercruiser 4.3LX 6cyl 262cid 4bbl alpha one gen two
A week ago I came on asking for help removing a stuck outdrive. You all got me through that but it came out with the gimbal bearing seized to the drive shaft so bad a hammer didn't budge it. A couple days of cutting, grinding, heating and pounding got that off as well. I found a small hole in the exhaust and drive shaft bellows. I got a new gimbal bearing, a kit with all three bellows, gaskets, O-rings, seals and all the special tools I'll need to install it all. I got a few hose clamps and the shift cable off and one of the two hinge pins holding the bell housing on. I used the hinge pin tool and a 3ft breaker bar on the first one. The tool stripped trying to get the second one off. So I got two more and tried again today with the same results.
To make things worse the inside of the hinge pin is getting smoothed out. Can anyone suggest an alternate method of removing the pin?

 

[Fun Times]

The pin is/has red loctite 271 on so the proper way is adding a good amount of heat to the pin to get it off not too damage the threads in bell housing.

Edit: If maybe the following from Merc service manual number 14 Page 4A-8 and 9 helps any to re-install....
3. Connect U-joint bellows to bell housing as follows: a. Position U-joint bellows on bell housing. Ensure that the bell housing flange rests in the groove at the end of bellows.
b. Lubricate sleeve O.D. with engine cleaner (Quicksilver Power Tune works well and it evaporates quickly) and install sleeve with tool and suitable driving rod.
4. Apply Locquic Primer “T” to internal bell housing threads and external hinge pin threads and allow to dry. Apply Loctite 8831 or 271 to bell housing threads and install hinge pins. Torque hinge pins to 100 lb-ft (136 Nm).

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[Scott06]

All good advice above heat first use some penetrating oil over a couple days. Heat apply some oil like Kroil as it cools down.

Also would add some of the cheap hinge pins tools are chit. Might get a better tool
Or I think a big Allen head fits in as well

 

[Bondo]

Or I think a big Allen head fits in as well

Ayuh,...... That's what I use,.... 6 point torque, insteada strippin' a 12 point tool,....

 

[alldodge]

Is the tool genuine Merc or something else

 

[Grub54891]

I use a big Allen wrench. Heat the pin and carefully unscrew it.