I have done this a couple ways. Pulley holder tool will how it so it can be undone or even torqued down. Or you can just use a 19mm and make sure you choose the proper gear to either tighten the crank bolt while performing the operation to the companion flange. (6th or reverse.)

J

 

Also, Make sure to get a new seal as mine leaked right after the swap.

 

AP1s are 36mm. Ap2s are 36mm.

edited for correction

 

No, they are not

I assume that the Honda manually states 27mm for I.D. and the OP is stating 36m for the O.D. (Socket size)

 

I stand corrected. I checked my trannys and they are all 36mm.

 

Isn't it odd that the manual would state the ID size for the nut vice the OD? I believe this is the first time I've encountered this situation.

 

I ordered a new one of those as well.

 

The manual always specs the bolt size, not the socket size. Look again.

 

Ok, my bad. Didn't realize that. Manual says "27 mm locknut", so I assumed it meant the OD was 27mm. So, how do I translate the following which applies to torqueing the hex nut:

162 ==> 0 ==> 162 N-m (16.5 ==> 0 ==> 16.5 kgf"dot"m, 119 ==> 0 ==> 119 lbf"dot"ft)

Bottom line: is this hex nut torqued to 119 ft-lbs?

 

Well I installed the new companion flange (AP1) today. No issues.