Originally Posted by tunaglove
I might as well bring this up here.......
I bought and old 181 pulley, haven't installed it yet BUT, the instructions call for heating the center hub to over 200 degrees F in an oven then sliding it on the cold crankshaft. To me this would indicate a press fit. I have not heard of anybody else even mentioning this step. I can't see how a piece of keystock could hold 8 pounds of pulley inertia.
I have had the 181 pulley on the Aero since LET first sold them....there were no instructions about heating and installing...I did have to send the first on back as it WAS too small to fit on the crank shaft by a couple of thousandths.... the replacement slipped right on like it should and has not given me a bit of problems since...
... except for making my rear tires wear out faster....
The torque spec for the crank bolt is 148 pounds + 90 degrees...I used blue loctite on it also...
