Anyone know which way the nut on the main pulley of b-series motors is threaded?
I've tried breaker bar+ 2 electric impact wrenches and still can't get it off. Just wondering if I'm turning it the right way.

 

it is regular threaded. righty tighty lefty loosy applies.

 

use some penatrating oil and let it soak for an hour then try, or do what i did on my brake rotors (they were a bitch to get off ) take a torch and heat em up, the fact that the bolt is made from different materials then the piece its threaded too, allows it to expand then contrast just enough to break loose the rust, after this i bet u would be able to get the bolt out with just a 1/2 drive

FUEL

 

would the heat be transmitted through the crankshaft at all to the rod bearings etc?

 

Uumm... counterclock wise.. thats the direction you would turn to loosen a bolt.