flyrotary@lancaironline.net Mailing List Archive

Marc,

I found a torque wrench with 900 ft lbs of torque will get it off without having to wrestle a rotating engine block. I struggled as you did and found this always worked for me. A tool rental place should have one. Works well on the flywheel nut as well.

------ Original Message ------

From "Marc Wiese cardmarc@charter.net" <flyrotary@lancaironline.net>

To "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Date 3/20/2023 4:05:39 PM

Subject [FlyRotary] eccentric shaft pulley bolt removal

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