I have had mine off twice in the last year. It is preferable to have grade 8 bolts if you can find them. And make sure they are threaded in a good distance. If you pull out those threads it'* going to be very difficult if not impossible to pull the balancer.
If replacing the balancer, make sure the threads in the new one are good and that you can get the bolts in properly, in case you need to pull again later.
Whenever I do this, I leave the crank bolt in partway and push against the head of the bolt.
I'd like to give a little warning to those who haven't tried it, getting that new oil seal in there is not very easy without the tool that is made for it. It'* like putting on a hubcap where one side keeps popping off. And with the crank sticking out, you can't use the old wood block trick either.
1992 green ssei. Tan leather, moonroof, power everything. 161k miles
Goodyear RSA Plus 225/60/16 VR on chromed factory crosslace rims. McGard chrome lugs.
Audio system: CD player w/equalizer, subwoofer (all stock).
Delco premium wires, NGK TR55 plugs, K&N stock style air filter. Ceramic brake pads. New rear brake tubing and proportioning valves. New wheel cylinders, front rotors and calipers. New front wheel bearings. Replaced crank sensor and harmonic balancer. Rebuilt instrument cluster. Cleaned A/C evaporator. Valve cover gaskets. Alternator. Front stabilizer links. Replaced all power steering lines and transmission lines. Cleaned MAF and IAC. New door appliques. Rebuilt steering gear. CERAMIC brake pads, I love them. I am listing all this in case someone needs advice on any of these repairs.