there is a hole in the pulley that lines up with a threaded hole in the block.. put a bolt in there to hold it I want to say it is a 6mm bolt..

 

Yes, that will align the crank pulley so you get proper timing, but it won't hold the torque. I am pretty sure the bolt will tear out of aluminum timing cover, or the tiny bolt will just shear...

 

Impact gun

 

5th gear and someone hard on the brakes?

 

Really? Are you sure you're not thinking of the axle nut?

 

OK, I just dug up my CFM underdrive pulley install instructions. Read through them and gave CFM a call for confirmation. They say that the timing peg that threads through the back of the block and hits the crankshaft will hold everything in place sufficiently. I am still kinda sketched out since the peg cantelivers out from the block a good inch or so before it locks with the crank.

 

Sweet. Just finished. I ended up using a home made spanner. That bolt is on on tight! To get the 90* rotation I nearly standing on a 2.5 ft cheater bar and I weight 200lbs! Thankfully timing looks a OK!

 

now that I think of it I did bend the bolt when I did mine.. a strap wrench would also work with the bolt implace as well.....I would not use an impact wrench... and if the car is a stick then the brake thing would work. but I would deffinitely use the bolt as well...I also did a crank position sensor realignment... after awhile I was just afraid of the bolt bending puting it just slightly out of alignment

 

^^^Cool. How did you do the crank sensor realignment?

 

there is a little generic plastic tool that comes with a sensor if you buy a new one.

 

I just shot mine with an electric impact gun, never had a problem with it yet. Reed if you opt for the crank sensor alignment tool I'd be interested in burrowing it