I'm working on my 92 sc300 and i have put on the new harmonic balancer but i cant get a torque wrench until next friday,i used a chain wrench to hold the balancer and used a breakerbar to tighten it as much as i can.Is it safe to drive until Friday?

 

If you used some blue loctite, I wouldnt worry about it. The chain wrench is mans best friend on holding things in place, and keeping it secured. I would say yes, unless the balancer is showing signs of seperation. Which they have a tendacy to do. GL

 

you should be ok