96Formula6spd

iTrader: (7)

Hey guys I am having the hardest time removing my harmonic balancer hub. I have removed them before and never had this much trouble. I have even bent some grade 8 bolts under the pressure. I have torn the crank threads up past the point of I dont care. I have a spare I can use or I could always hunt for a used one. The engine is getting tore down for a rebuild. Anyways I have used a jaw puller, harmonic balancer removal tool.

So I was wondering if I could heat it up. I need to get it off to get my timing set,cam,timing cover for the other motor.

Any ideas to get this out?

RamAir95TA

iTrader: (2)

If the crank threads are torn up that bad you've got bigger problems other than not being able to remove the hub.

What kind of puller are you using? Are you sure you're pushing against the crank and not the hub (very common mistake)?

96Formula6spd

iTrader: (7)

My setup is like this except with a pry bar to hold the motor.

http://www.lt1engine.com/tech/remove...lt1-crank-hub/

I have removed theses plenty of times before. I am wondering if the balancer I used is causing the problem. This is a 94 block with a 96 balancer/timing cover etc. These have always come off in about 20 seconds after setup. I have been stuck now for 6 hours on it. I will be hunting for a new crank/hub assembly. I just want my hotcam/timing cover/timing chain off of this motor.

Still having trouble since the smaller bolt bends and its a grade 8 bolt. A same size bolt drills into the crank. Thinking of getting a much bigger heat and trying it again.

Any other ideas.

shbox

If you don't care any more, cut it off with a torch.

whytryz28

iTrader: (28)

The crank threads have nothing to do with removing the hub, other than removing the bolt.

stevo9389

just looked at that animation and i am suprised it had ever worked for you without destroying the crank threads or bottoming out. use an old pushrod instead of a bolt. doesnt have to be a hardened one as i used it to remove some that were rusted on in a junkyard without bending them up. also advance auto can loan you this same tool with the 2 different length pushrods.

jallen100

iTrader: (4)

What kind of puller are you using

96Formula6spd

iTrader: (7)

That was tried

Then I went to the auto store and got this



Not the exact tools but I have done the jaw puller before with zero issues.
Harmonic Balancer tool is what I usually use.

Big Al

iTrader: (1)

If you take a good look the three threaded holes in the crank hub are not symmetrical. It's hard to get the center of the puller lined up with the center of the hub with the above puller. I used a Snap On three armed puller with the arms removed and bolts through the puller's hub to the crank hub. Came right off.

Al 95 Z28

96Formula6spd

iTrader: (7)

The removal tool has enough play to make it line up. So does the jaw puller. We have the bolt dead on its place and it still wont budge. I have a buddy bringing some real heat tomorrow. Hopefully it will come off. If not its getting cut off.

Also like I have stated before its not my first time removing this piece. I usually have it setup and off in 5 mins of less.

killerz97

iTrader: (1)

The crank has a key way for the crank hub i wonder if somebody just cranked the hub onto it.

96Formula6spd

iTrader: (7)

I am really thinking that has happened.

30696bird

iTrader: (4)

There is not a key in the key way (there is a key way just no key). There is only a key in the timing gear and reluctor ring if it has a crank position sensor. I made a special tool that NEVER fails me. It's a half inch piece of steel plate that is cut into a circle with three holes for the hubs outside bolts and then one hole in the middle with a nut welded onto that hole and a piece of all thread ran through it.

96Formula6spd

iTrader: (7)

Well got it off. Borrowed a Map gas torch on it. After some time and some force it broke free. It looked like it had spun on the crank and cut a grove in the crank. Its off and getting replaced.