[Gods Sun]

I have a 96 toyota tacoma 3.4L 4WD.. during normal highway driving my crankshaft pulley started to come loose, lots of lights and a crankshaft position sensor code and i pulled over immediately pulled over and shut down the vehicle, after a tow home i discovered my crankshaft pulley loose. I have it ready to go back together...timing was unaffected, and my crank suffered no damage. My question is on the inner collar of the pulley that actually is in contact with the shaft has a rectangular groove in it which appears to have a set key that fits into it and the FSM calls it "pulley set key". I have called three dealerships and all they can give me is the woodruff key for the crankshaft timing gear. They say there is nothing else that goes on the shaft. So if there is no set key for it why is there a groove on the pulley..please help..i love my tacoma and take good care of it(i had not checked the torque as a maintaince procedure oops) I want to put it back right Please Help TY Justin

 

[Sizzlenut]

Sounds like you're on the right track. It makes sense to me that there should be a key there. You can always take a measurement of it and go to an industrial transmission place and get the key. It will probably be 100X cheaper too.

 

[Gods Sun]

Update

Well I have fashioned a "key" if you will. It does seem to help a little. I never had a problem with the pulley slipping on the crank anyways. But I got it torqued down as tight as i could. make-shifted a sterring wheel pulley to prevent the motor from turning, put it in 5th and 4 low and torqued till one of the bolts holding the puller to the pulley broke, I know its tight but how tight? I have been defeated in my attempts to find a torque wrench that goes over 150lbs for a figure I can afford. I still have the smallest wobble at idle 650-750rpm. Gone with any type of load. Do you think I should replace it, I hate to drop the cash and have it just be lack of torque. If I was only at say 160-180lbs of torque could that bit I am shy give me my wobble at low RPM. What do you think? I have had balancers go bad(actualy that is the only part to go out on me on multiple vehicals, funny) So I was just wondering what imput you fine people would be able to offer. So my Dad always likes to keep me guessing, he pointed out that when No1 is TDC that slot that I think needs something in it, is at the 12 o'clock position this allows the timing mark on the pulley to line up properly with the marks on the timing cover, so have I been over-thinking this. Miles gone by will tell. Thanks once again

 

[hossmaster]

http://www.ncttora.com/fsm/2003/Repair_Manual/03tacoma/em5vzfe/timbel/comp.pdf

also look here

http://www.ncttora.com/fsm/index.html