Tightening crankshaft pulley bolt

[Cornbread]

Guess it depends on the engine, but what is your favorite way of keeping the crankshaft from turning when torquing the front pulley bolt? Especially an auto trans vehicle?

 

[JakeR22]

Impact gun.

 

[Cornbread]

No doubt. But what if you need a specific torque setting? They can range widely from engine to engine; plus you might not have enough room for the ol` impact!

 

[qship1996]

wrap pully with an old belt to protect it and then wrap a chain wrench around it, wedged against an unmovable object{frame of car or other sturdy object in the srea} then use a torque wrench to tighten to specs{ I had to tighten mine to 270ft/lb this way-easy}

 

[chrome]

Originally Posted By: qship1996
wrap pully with an old belt to protect it and then wrap a chain wrench around it, wedged against an unmovable object{frame of car or other sturdy object in the srea} then use a torque wrench to tighten to specs{ I had to tighten mine to 270ft/lb this way-easy}


I have seen an old timer "make" a strap wrench using a length of old serpentine belt, and use that to hold the pulley while he tightened the crank bolt.

 

[rpn453]

The only pulley bolt I've tightened had cut-outs on the pulley that I could stick a pry-bar through and under the block, locking the pulley in place.

 

[benjamming]

Here is a link where someone made a tool to hold the pulley in place. Toyota 3.4L V6 Timing Belt Replacement

Non-OEM tool of various designs for Honda

 

[JakeR22]

I'd be surprised if any shop, including dealers, take those bolts on and off with anything other then an impact.

 

[benjamming]

I agree Jake, but I think the OP was probably more concerned about the bolt torque during reinstall.