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                           RV9-List Digest Archive
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                     Total Messages Posted Sat 02/05/05: 2
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Today's Message Index:
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     1. 08:22 PM - Re: torque wrench calibration  (Richard Scott)
     2. 09:26 PM - Re: Re: torque wrench calibration  (Boyd Butler)
 
 
 
________________________________  Message 1  _____________________________________


Time: 08:22:41 PM PST US
From: Richard Scott <rscott@cascadeaccess.com>
Subject: RV9-List: Re:  torque wrench calibration

--> RV9-List message posted by: Richard Scott <rscott@cascadeaccess.com>

OK, so you got your wrench calibrated within a gnats eyelash.  Are you 
actually measuring the torque correctly?

First, measure the drag the nut / bolt combination exerts.  Those nuts with 
the inserts will give you a few inch pounds.  And the wood on my wood prop 
initially gave several pounds.

Then add the drag to the specified torque and use that number for your 
torque setting.

Richard Scott
RV-9 Wings






________________________________  Message 2  _____________________________________


Time: 09:26:04 PM PST US
From: "Boyd Butler" <linbb@worldnet.att.net>
Subject: Re: RV9-List: Re:  torque wrench calibration

--> RV9-List message posted by: "Boyd Butler" <linbb@worldnet.att.net>

The torque on the wood prop was to give the correct amount of crush on the
wood 
at that torque not to have that added to it.Consult the correct torque
tables, they will
 give it to you and don't just add to things because one thinks that is
right as that 
 could over torque the bolt. There are specific torque's for certain grade
of bolt
 or for certain parts never exceed those values.  

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

From: Richard Scott
Subject: RV9-List: Re: torque wrench calibration

--> RV9-List message posted by: Richard Scott <rscott@cascadeaccess.com>

OK, so you got your wrench calibrated within a gnats eyelash.  Are you
actually measuring the torque correctly?

First, measure the drag the nut / bolt combination exerts.  Those nuts with
the inserts will give you a few inch pounds.  And the wood on my wood prop
initially gave several pounds.

Then add the drag to the specified torque and use that number for your
torque setting.

Richard Scott
RV-9 Wings