I think the torque is 125 ft lbs. I'll check, but I'm sure someone else will have the answer. In order to install the rope seal, you should loosen all the main caps so the crankshaft can be pulled down a little to loosen the fit. Installing those seals has been described several times at this site, so if you search the site, you will find quite a bit of information on the topic.
It helps to remove the spark plugs so you can rotate the crankshaft easily to help pull the seal into place.
Harvester
