Engine strapped down to a truck.  250lb me on the end of a 3' bar. Tap the head with a hammer to cause a ringing vibration.  Make sure you're turning it the right way.






On Monday, March 20, 2023 at 07:33:58 PM EDT, David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net> wrote:





Marc,
I sometimes have bolted a 2x4 onto the flywheel, and then let it contact the ground on the side you are pushing down on the breaker bar (helps remove net torq on the engine).  Then I usually have someone also stand on the engine.  My breaker bar extension is 6' long. 

Dave Leonard

On Mon, Mar 20, 2023 at 1:06 PM Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net> wrote:
> Fellows,
> Been trying to tear down an extra FD engine and I’m having a devil of a time getting the front pulley eccentric bolt off. The flywheel nut has already been removed. I did put the counterweight and flywheel nut back on to be able to bolt a bar to the counterweight to keep the eccentric shaft from turning when trying to get the eccentric bolt off. Here is what I have tried so far: breaker bar extension pipe (+3’); propane torch on bolt for 2 min to break any sealant (?); impact wrench-nada; sledge hammer on breaker bar; solvent.
> Nothing worked. The engine just lifts off the floor with more torque. Does it take a gorilla to get this nut off???
> Any ideas how to get this dam bolt off?
> M