Chris,
My recommendation is to get one of the
large ¾” (900 + ft – lbs) air wrenches. I got
one for $99 and it earned its keep the first time I had to get the big
nut off. 2 seconds and it was loose. In fact, had a gent load his
rotary in his car and drive 90 mile round trip to my hangar – for the 2
seconds it took to get his loose as well. He had spent three days trying
to stabilize the block and using a pipe on a wrench ( as well as many of the
methods you attempted) to get it loose, all which failed.
Believe, me you’ll love it for that
purpose alone – not counting all the other uses. I had a smaller ½”
300 ft-lb air wrench but it just wasn’t up to the job.
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of The Mallorys
Sent: Tuesday, September 09, 2008
9:15 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re:
Counterweight removal?
Bob,
I have removed the
big nut, but I don’t mind you asking. It is usually the little
things that trip us up.
I have tried heating
all the way around the counterweight. Lynn wrote and suggested heating only one
spot. So I will try that next.
I’ll keep my
fingers crossed.
Chris
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Bob Tilley
Sent: Tuesday, September 09, 2008
6:48 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re:
Counterweight removal?
Chris,
You did remove the big nut didn't you;-)
On Sep 8, 2008, at 8:24 PM, The Mallorys wrote:
I can’t get the
counterweight off. I’ve tried the puller, and heating the
counterweight, but it didn’t work.
Does anyone have any
cool tricks to help?
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