problem with g63b

[thisiscraze]

having an issue it seems the from of my crank is moving in a circle motion what could it be?

[Mikemike]

Sounds horrible,,, mine stays stationary and the truck rotates around it. try turning the starter around, might help :shrug:

[geezer101]

Oooh, ohh-kaaay. Does your G63B have a harmonic balancer? It could be dead. If it's a normal pulley it might be damaged from not being mounted properly or just abused from poor installation. The only way you could have a crank end run out of true is from severe lateral impact. My G63B seized and the crank twisted from the main journal between #1 and #2 cylinders and it was still true. Need to take off the pulley and get a dial gauge indicator onto it to confirm if it's bent.

[royster]

First check to make sure the center bolt is tight.

[thisiscraze]

i checked its definitely tight ill have to check the balancer i was told its normal but to me it seems like it shouldnt move that much... its actualy crazy turns out i need a new alternator pully bearing cause its binding a bit i added some wd40 and it helped a little i guess it justs needs a little maintenance thanks for the help guys

[geezer101]

Also don't take it at face value the pulley is true. If it's running out of centre enough to be noticed there's definitely something wrong...