Porsche vs. Bentley Torque Discrepancies

[rick3000]

While I wait for the last few parts to arrive before I do a water pump replacement (among other service/upgrade items), I was reviewing my Bentley manual and the 986 Workshop Manuals (the pdf's ones that are around).  I found a few discrepancies, and was hoping someone may be able to help clear them up.

 

For the passenger seat, Porsche says to torque the Torx bolts to 15lb // 20Nm.  Bentley says, 48lb // 65Nm.  That's a pretty significant difference.

 

For the motor mount, Porsche says to torque everything to 34lb // 46Nm, Bentley says 34lb // 46Nm for the mount, then 48lb // 65Nm for the yoke/bracket.

 

Thanks again,

-Rick

Edited August 8, 2015 by rick3000

[JFP in PA]

While I wait for the last few parts to arrive before I do a water pump replacement (among other service/upgrade items), I was reviewing my Bentley manual and the 986 Workshop Manuals (the pdf's ones that are around).  I found a few discrepancies, and was hoping someone may be able to help clear them up.

 

For the passenger seat, Porsche says to torque the Torx bolts to 15lb // 20Nm.  Bentley says, 48lb // 65Nm.  That's a pretty significant difference.

 

For the motor mount, Porsche says to torque everything to 34lb // 46Nm, Bentley says 34lb // 46Nm for the mount, then 48lb // 65Nm for the yoke/bracket.

 

Thanks again,

-Rick

 

First of all, the PDF files (if they are the ones I have seen) were very early versions (1999 if memory serves) and had none the dozens of updates released later to correct misinformation contained in the originals.  The Bentley manuals have also contained some incorrect information as well, and they have also released correction's on their website, so the inconsistencies you are seeing are not at all unusual, and why we often caution readers about using old and potentially incorrect information.

 

Seat fasteners should be torqued to 65Nm or 48 ft. lb.   Motor mounts should be torqued to 65Nm or 48 ft. lb.

[rick3000]

Thanks for the clarification Jeff!  

 

I am aware those less than reputable pdf's are outdated, but they have a few illustrations and diagrams that can't be found anywhere else.

[JFP in PA]

Thanks for the clarification Jeff!  

 

I am aware those less than reputable pdf's are outdated, but they have a few illustrations and diagrams that can't be found anywhere else.

 

They are useable, as long as you respect that they may not always be the current information.  We keep a library of these service manuals, and when they were still in print it nearly a full time job to keep them currently updated, which is one of many reasons Porsche, like all the other OEM's, went to online systems which are always current.

[rick3000]

And I'm sure that online system cost's an arm and a leg.  Thanks again!

[JFP in PA]

Well, a full year subscription runs about $5K, but you can also buy access to one page at a time if you choose and for a lot less money.  Info here: https://techinfo2.porsche.com/PAGInfosystem/VFModuleManager?Type=GVOStart