Harmonic Balancer

[CRM1988]

I know there is probably a thread somewhere, but after 2 belts a belt tensioner pulley and lots of squeaks and chirps I noticed today that the harmonic balancer has a wobble to it could this be the problem I am having? How hard is it to replace this and any tips and tricks to doing this replacement would be greatly appreciated.

[75sv1]

^{Fairly simple. get a harmonic balancer puller. You will need to remove the radiator. Then install a new one. The elastomer or rubber ring goes bad on these. I'd check crankshaft end play. I just had one go bad. It took out the thrust bearing surface on the crank. Yes, my belt was getting chewed up, a lot of squeeking etc. A new one is  about $50.}

[CRM1988]

So how can you tell whether the thrust bearing is bad?

[1989 Eliminator]

http://comancheclub.com/topic/50435-how-to-change-your-harmonic-balancer/

[75sv1]

So how can you tell whether the thrust bearing is bad?

The crankshaft should not move. Actually, it is only suppose to move about .002". Not a lot. I grabbed the harmonic balance and mine shifted at least 1/8". Not good. Hope you caught yours in time. As for the .002 to I think .006 specs, you need to put a dial indicator secured to the engine block and one the crankshaft end. Then pry the crankshaft forward and back. I did take off the pan and the thrust bearing was worn on the crank. I had to replace it. If the thrust bearing is not worn, you might be able to put in need bearings.

     So, I'd just pull forward and back on the harmonic balancer and see if you can detect any movement. If not, then I'd just put on a new harmonic balancer.

[CRM1988]

Thanks for the info