3ct crank pulley

[laddo]

How come it comes off? I think I read somewhere that the pulley should be put on with loctite. Why is this? If its tightened to all the correct torque settings it shouldn't come of should it?
What is the correct way to install the new pulley?
(God I wish I knew about this website when I first purchased my Townace then I might have avoided this mess)

[paul9]

the pulley is torqued up to a very tight lb,very hard to do unless you are able to lock the crank,Bob has a special tool for this,not many have,and probably just air ratchet them up and think they are tight enough,i personally use locktight to make sure,also if the pulley has been loose at any time it could have become worn and this will eventually work itself loose.

[Townaceclive]

I allways praise Toyota but in this area I think I would have done two things first would have been a split lower timing belt cover so the crank pulley need not come off, and second a splined end the the crank shaft and not the taper and woodruff key.
The Toyota manual says use thread lock on the bolt, but I also put a film around the shaft.

[laddo]

Yeah, sounds like Toyota have made things a tad difficult in this scenario.
Is it possible to drop a spot of weld onto the pulley that would help secure things or would that make it too difficult to fetch back off?

[Townaceclive]

The welding on is the last resort fix, a spot weld to where, the bolt head covers the end of the shaft although as long as the pulley is held by the Woodruff key a weld of bolt head to pulley would work, but as you say how do you get it back off?
The old Townace site had a pland for bolt clamp have a look on Ace Answers and search for crank pulley.