Mailing List flyrotary@lancaironline.net Message #67413
From: David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] eccentric shaft pulley bolt removal
Date: Mon, 20 Mar 2023 16:33:10 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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

Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster