[dehager]

Those bolts are done in two stages; a pre load and a final torque value which is done by turning the bold a specific degree. Some head bolts are done in this manner so it is not an old or weird way of doing it. I also beleive the bolts are to be oiled prior in installing, check the manual.

1- pre load the bolt as specd in the manual.
2- put your wrench on the bolt.
3- use a protractor and mark 32' on the case from the wrench.
4- turn your wrench to the mark.
5- done!

One word of warning, when angle tightining do it in one fluid motion. You only get one shot with these bolts, it's not really that big of a deal to do it right.