Guys,
Have an UD pulley to install on an 06 max and cannot get the stock crank pulley bolt out and have read conflicting reports on whether it is right hand/left hand thread and what the trick is do getting this bolt out.
Greg

 

How are u trying to get it off? Assuming that the bolt on the 3.5 goes in the same way as the 3.0(which I dont see why it wouldnt), the easiest way is the breaker bar/ starter trick. In case ur not familiar with it....

-Disconnect the CPS just under the pulley
-Lookin at the pulley straight on, place a socketover the bolt on a long breaker bar, and have the end of the bar resting against the ground towards the front of the car
-Have some one just crank the motor (a bleep not even a second long is usually long enough)
-The crank turns to the left, and by not allowing the bolt to move due to the breaker bar being wedged against the ground, it'll loosen itself.

Good luck

 

I was using 2 different air guns and then myself and a friend, combined weight of 500lbs pushing on a breaker bar with a pry bar wedged in the crank pulley and after 3 hours we gave up. Which was is the bolt to loosen-traditional or left hand thread?

 

Lefty loosey, like almost every other fastener in your car.

 

Understand but in reading the threads they said the crank is left hand thread meaning opposite on loosening the bolt....

 

I can guarantee you that you need to turn the bolt counterclockwise to loosen it.

 

Stopped at the Nissan dealer and the shop sup said it is a right hand thread.
I guess the starter blip method will get a try!

 

I'm suprised an air gun didn't loosen it. You probably didnt have enough psi in the air supply.

 

I was using a sears vertical cpmpressor, think it is 5.5 hp with 125 psi. Not sure what shop air is rated at...

 

i used a 250lb impact gun. Held it for couple of seconds and it came right off. and your turn it to the left to get it off.

 

See what I mean about no one has a concrete answer? The nissan dealer said it was normal right hand thread meaning the traditional loosen applies but if I read your post correctly I have to aim toward the back of the car to loosen......

 

Holy crap dude. This question has been answered CORRECTLY already. You turn the bolt COUNTER CLOCKWISE to remove it from the crank shaft.

The post you just made says this exact same thing.





That is what they mean by 'right hand thread'. You turn it to the right to tighten it. Righty-tighty Lefty-Loosey.




If it were left hand thread it you would turn it to the left, or counter clockwise to tighten it.

 

................

 

Sorry! With all the talk being left hand/right hand thread I mixed them up in my post. Thanks, I think....

 

I finally got it off, the starter bump did not work, I used a chain with a J hook on it attatched to a strap attatched to an Excursion to hold the pulley in place and using a breaker bar the bolt finally came off. It is right hand thread and is loosened the normal way, thanks for all the advice and help.

 

I am glad you finally got the thing off. But it shouldn't have been that difficult to remove in the first place. It sounds like the people in Smyrna were misbehaving when they built your car.

 

It did not help that for 3 hours I tightened it! Nothing like creative engineering to complete a task....

 

The initial tightening it with the impact most definately made his a more difficult install than it needed to be.

 

Concur. Hopefully someone else will learn from my mistakes.