Date: Sat, 22 Feb 2014 12:42:26 -0500
Reply-To: Derek Drew <derekdrew@DEREKMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Derek Drew <derekdrew@DEREKMAIL.COM>
Subject: Trans Bentley Torque Mistakes, Torque XLS Tool I Made, Peloquins,
Differentials, Tools
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The subject of this post is a torque value conversion tool I made,
definitive differential friction torque specs, corrections to several
mistakes in Bentley, some (luxury and probably impractical) torque
friction spec checking tool options, and content about the procedure to
install a Peloquin differential without losing your mind. <br><br>
=================================<br>
TORQUE VALUES CONVERSION / CONVERTER TOOL <br>
(with XLS Calculator)<br>
=================================<br><br>
I have prepared a torque value conversion utility tool that would be
impractical to make on your own because of excessive googling and cross
checking time. <br><br>
The revised tool is here:
<a href="https://drive.google.com/file/d/0B8sxgRMrur9XYklMOHlSa2h0Ync/edit?usp=sharing" eudora="autourl">
https://drive.google.com/file/d/0B8sxgRMrur9XYklMOHlSa2h0Ync/edit?usp=sharing</a>
(DOWNLOAD it to your PC and then use Excel to manage it). You have to
look to find the download link. <br><br>
Entering values in any one of cells B3 to B19 allows you to read out the
calculated result value in the adjacent cells to the right, and enables
translation between any of these values. <br><br>
The utility converts any direction between these values: <br><br>
Entering values in any one of cells B3 to B19 allows you to read out the
calculated result value in the adjacent cells to the right, and enables
translation between any of these values. <br><br>
AMERICAN SIZES<br>
<x-tab> </x-tab>Foot
Lbs<br>
<x-tab> </x-tab>Inch
Lbs<br><br>
CURRENT EUROPEAN TORQUE VALUES<br>
<x-tab> </x-tab>NM<br>
<x-tab> </x-tab>NCM<br><br>
OBSOLETE TORQUE VALUES (the ones in the little list of six here are the
same)<br>
<x-tab> </x-tab>Kgm,
Kilogram Meters, KGFM, Mkg, MKP ,MKGS, <br><br>
OBSOLETE TORQUE VALUES (the ones in the little list of seven here are the
same)<br>
<x-tab> </x-tab>CMKG,
KGFCM, kg-cm, Kilogram Centimeter, CmKp, KPCM, Kilopond
Centimeter<br><br>
Converting between current metric values and obsolete European values is
achieved with 0.98 conversion factor, although the position of the
decimal point varies depending on which of the two groups of items above
you are converting from/to. <br><br>
The xls conversion utility that I posted is also available from the
syncro list here:
<a href="https://groups.yahoo.com/neo/groups/Syncro/files/software%20tools/" eudora="autourl">
https://groups.yahoo.com/neo/groups/Syncro/files/software%20tools/</a>
<br><br>
You can also get the conversion utility (that I made) at the
"Software Tools" section of this:
<a href="http://groups.yahoo.com/neo/groups/Syncro/files" eudora="autourl">
http://groups.yahoo.com/neo/groups/Syncro/files</a> <br><br>
Here is a preview of what the calculator looks like with an arbitrary
value of 100 input into the entry cells: <br><br>
<a href="https://lh6.googleusercontent.com/-ehczUqyPT9A/UwjANdaUJvI/AAAAAAACTBE/y25aQTFLmrk/s0/Converter%20Photo.jpg" eudora="autourl">
https://lh6.googleusercontent.com/-ehczUqyPT9A/UwjANdaUJvI/AAAAAAACTBE/y25aQTFLmrk/s0/Converter%2520Photo.jpg<br>
<br>
</a>You might be able to use that screen shot above alone without
downloading the xls but the xls will be more elegant and accurate.
<br><br>
The xls calculator calculates many numbers beyond 10 digits, although for
display purposes they are shown with some rounding. The rounding
can be turned off, but I don't think anybody will ever really want to do
that. <br><br>
===================================<br>
A NOTE ABOUT PHOTO SIZES IN GOOGLE<br>
===================================<br><br>
You might want to view some photos at larger size. Here is how to do
that: <br><br>
VIEWING PHOTOS AT LARGER SIZE (or downloading)<br><br>
The photos at
<a href="https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1" eudora="autourl">
https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1</a>
by default are rendered in smaller size than is ideal in some
cases. <br><br>
Here is how to make them easier to read, or to make them larger for
printing: <br><br>
Either download the photos with the DOWNLOAD menu item or use the browser
URL hacking method.... right-click the photo and then click "open
image in new tab" and then find the s indicator in the URL and
change the value (example s912 or s2103) that begins with an s to 0
(example /s0/ ) and hit enter. Hit enter again if you wish. DO NOT
just right click and SAVE AS the initial smaller size photos or the
picture quality will be degraded. <br><br>
===================================<br>
KEY ALBUM ON DIFFERENTIAL FRICTION<br>
===================================<br><br>
The album from which that photo comes is here and some of the information
there may be useful to you: <br><br>
<a href="https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1" eudora="autourl">
https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1</a>
<br><br>
======================================<br>
DIFFERENTIAL FRICTION ERROR IN BENTLEY<br>
======================================<br><br>
The following Bentley page has an error where they render 7 inch lbs
improperly to a value of 18.2 inch lbs: <br><br>
<a href="https://lh3.googleusercontent.com/-OTO-3jUZcgU/Uv5b0Fw0K-I/AAAAAAACSQk/kMS0roTfr64/s0/Pre%20Load%20Page%201.jpg" eudora="autourl">
https://lh3.googleusercontent.com/-OTO-3jUZcgU/Uv5b0Fw0K-I/AAAAAAACSQk/kMS0roTfr64/s0/Pre%2520Load%2520Page%25201.jpg</a>
<br><br>
Other manual pages that do not contain that error include: <br><br>
Vanagon Bentley page 39.13<br>
Vanagon Bentley page 39.27<br>
VW Bus Bentley page 53<br>
094 Trans (European manual) 1986, page 130 <br><br>
All of these pages are shown at
<a href="https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1" eudora="autourl">
https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1</a>
<br><br>
For the record, here are the corrected values for differential friction
torque for all vehicles. <br><br>
=====================================================<br>
DIFFERENTIAL FRICTION<br>
FINAL CORRECTED VALUES for VW 091 / 094 differentials<br>
=====================================================<br>
<x-tab> </x-tab><br>
NCM (new bearings)
LOWEST<x-tab> </x-tab><br>
2<x-tab> </x-tab>Foot Lbs<br>
27<x-tab> </x-tab>Inch Lbs<br>
3<x-tab> </x-tab>NM<br>
300<x-tab> </x-tab>NCM<br>
0.3<x-tab> </x-tab>Kgm or Kilogram Meters or
KGFM or Mkg or MKP or MKGS<br>
31<x-tab> </x-tab>CMKG or KGFCM or
kg-cm or Kilogram Centimeter or CmKp or KPCM or Kilopond Centimeter<br>
<x-tab> </x-tab><br>
NCM (new bearings)
HIGHEST<x-tab> </x-tab><br>
3<x-tab> </x-tab>Foot Lbs<br>
31<x-tab> </x-tab>Inch Lbs<br>
4<x-tab> </x-tab>NM<br>
350<x-tab> </x-tab>NCM<br>
0.4<x-tab> </x-tab>Kgm or Kilogram Meters or
KGFM or Mkg or MKP or MKGS<br>
36<x-tab> </x-tab>CMKG or KGFCM or
kg-cm or Kilogram Centimeter or CmKp or KPCM or Kilopond Centimeter<br>
<x-tab> </x-tab><br>
NCM (used bearings)
LOWEST<x-tab> </x-tab><br>
0.2<x-tab> </x-tab>Foot Lbs<br>
3<x-tab> </x-tab>Inch Lbs<br>
0.3<x-tab> </x-tab>NM<br>
0.3<x-tab> </x-tab>NCM<br>
0.03<x-tab> </x-tab>Kgm or Kilogram Meters or KGFM
or Mkg or MKP or MKGS<br>
3<x-tab> </x-tab>CMKG or KGFCM
or kg-cm or Kilogram Centimeter or CmKp or KPCM or Kilopond
Centimeter<br>
<x-tab> </x-tab><br>
NCM (used bearings)
HIGHEST<x-tab> </x-tab><br>
0.5<x-tab> </x-tab>Foot Lbs<br>
6<x-tab> </x-tab>Inch Lbs<br>
1<x-tab> </x-tab>NM<br>
70<x-tab> </x-tab>NCM<br>
0.1<x-tab> </x-tab>Kgm or Kilogram Meters or
KGFM or Mkg or MKP or MKGS<br>
7<x-tab> </x-tab>CMKG or KGFCM
or kg-cm or Kilogram Centimeter or CmKp or KPCM or Kilopond
Centimeter<br><br>
VW is very sloppy and inconsistent when doing conversions from the
european values to other values, as though they gave that job to a junior
person or somebody who was being retired for bad work. Sometimes they
used only two rounded digits to do the conversions, other times just did
the math wrong, or rounded the result, or skipped rounding the
result. Looking at all the pages together and using 10 digit
conversion values shows all the flaws. <br><br>
=============<br>
TOOL OPTIONS<br>
=============<br><br>
Lastly, very few users will have access to the VLC 547 tool that Bentley
shows (otherwise called a US1064), but a variety of other friction force
wrenches are available. <br><br>
Paul Guard reports that he didn't prefer the action of the VLC 547 and
used a more traditional-looking short torque wrench. <br><br>
In addition, the following other wrenches are differential friction
wrenches: <br><br>
VLC 547 Gauge = US1064 = VAS 6222 = Stahlwille 73Nm/15 Friction Gauge =
ASE 465 920 00 000 = "ASE 46592000000" <br><br>
Some of these other wrenches are designed to smooth out the force better
than the VLC 547. The VAS 6222 is a VW OEM wrench. <br><br>
There are pictures of some of these tools at
<a href="https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1" eudora="autourl">
https://picasaweb.google.com/111803335891651546087/DifferentialFrictionVW?noredirect=1</a>
<br><br>
<a href="https://lh5.googleusercontent.com/-EEIYSw3vB-0/Uv1FFGQbskI/AAAAAAACSXc/fS2Lg-j4xmQ/s0/VAG%20VAS%206222.jpg" eudora="autourl">
https://lh5.googleusercontent.com/-EEIYSw3vB-0/Uv1FFGQbskI/AAAAAAACSXc/fS2Lg-j4xmQ/s0/VAG%2520VAS%25206222.jpg<br>
<br>
</a>
<a href="https://lh4.googleusercontent.com/-pjGEAlz5iVY/Uv1GsUWxVFI/AAAAAAACSXc/GKPUkV1OmO0/s500/Stahlwille%20Friction%20Gauge.jpg" eudora="autourl">
https://lh4.googleusercontent.com/-pjGEAlz5iVY/Uv1GsUWxVFI/AAAAAAACSXc/GKPUkV1OmO0/s500/Stahlwille%2520Friction%2520Gauge.jpg<br>
<br>
</a>
<a href="https://lh6.googleusercontent.com/-QANx5yXZUtw/Uv1FeHegO-I/AAAAAAACSXc/TdMolS9xTGY/s912/Red_torque_wrenchC.jpg" eudora="autourl">
https://lh6.googleusercontent.com/-QANx5yXZUtw/Uv1FeHegO-I/AAAAAAACSXc/TdMolS9xTGY/s912/Red_torque_wrenchC.jpg</a>
<br><br>
===================================================<br>
WHEN INSTALLING PELOQUIN DIFFERENTIALS<br>
FINDING S TOTAL BEFORE PUTTING RING GEAR ON<br>
=========================================<br><br>
My guess is that most people will not want to remove their pinion shafts
in order to do the differential friction measurement (to find S TOTAL).
<br><br>
These people will then be advised to find out the total of S1 and S2 (S
total screw in depth) first BEFORE installing the ring gear onto the
Peloquin differential. !!!!!!!!!!! <br><br>
Without a reminder or suggestion from you to do it this way, my guess is
that many people will put the ring gear on first and then be in a
quandary about whether to be lazy and skip finding S Total or whether to
remove the ring gear from the Peloquin differential and reinstall it, a
needless torture or temptation if they know to do the test first.
<br><br>
===================================<br>
ADDITIONAL BENTLEY VALUE MISTAKES<br>
===================================<br><br>
Additional mistakes of this nature in Bentley are documented here:
<a href="https://picasaweb.google.com/111803335891651546087/VWBentleyManualMistakes?noredirect=1" eudora="autourl">
https://picasaweb.google.com/111803335891651546087/VWBentleyManualMistakes?noredirect=1</a>
Be sure to see the notes to those photos for details. (180
inch lbs given where they really meant 19 inch lbs.) <br><br>
<a href="https://lh4.googleusercontent.com/-3F4rjoLTFVE/Uwfjmuwax7I/AAAAAAACS18/wB3D--COEJs/s0/20140213_163249.jpg" eudora="autourl">
https://lh4.googleusercontent.com/-3F4rjoLTFVE/Uwfjmuwax7I/AAAAAAACS18/wB3D--COEJs/s0/20140213_163249.jpg</a>
<br><br>
These wrong values are supplied in your Bentley pages 35.27, 35.57, and
35.89 so consider grabbing the book now and marking the correct values in
there with a pen (so the next guy who uses that book -- your son????--
doesn't boob something). Or, print out this post and put it into
the book in one of those pages and make a cross reference.
<br><br>
Here below is a corrected Bentley page with good values here: <br><br>
<a href="https://lh6.googleusercontent.com/-vEgw6fYxEFw/Uv1COdq_xbI/AAAAAAACSKs/aOsHfw01xno/s0/20140213_170749.jpg" eudora="autourl">
https://lh6.googleusercontent.com/-vEgw6fYxEFw/Uv1COdq_xbI/AAAAAAACSKs/aOsHfw01xno/s0/20140213_170749.jpg</a>
<br><br>
Correct Bentley pages are: 35.123 and 39.41.<br><br>
=============<br>
X Posting Notice<br>
=============<br><br>
Due to the nature of this post being a post of record, I have cross
posted it to Samba and if somebody finds an error with what I have said
here then it is unpredictable whether the error will be highlighted here
on Vanagon email list or whether it will be highlighted at Samba.
<br><br>
Accordingly, if you are interested in this topic (which is very unlikely
unless you have lost your mind) then you could also check here for any
further content about it:
<a href="http://www.thesamba.com/vw/forum/viewtopic.php?t=568039&start=80" eudora="autourl">
http://www.thesamba.com/vw/forum/viewtopic.php?t=568039&start=80</a>
<br><br>
The link I just gave also displays some of the pretty pictures
automatically, which is a nice touch instead of having to wear out your
finger clicking on all these links. <br><br>
<br><br>
<x-sigsep><p></x-sigsep>
_______________________________________________<br>
Derek
Drew
<br>
Washington DC / New York<br>
derekdrew@derekmail.com<br>
Email is best normally but...<br>
PHONE: 202-966-7907 (Call the number at left normally)<br>
(alt/cell for diligent calling only): 703-408-1532<br><br>
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